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Head to Head

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Yamasaki vs Takuya

Jumpei Yamasaki vs Takuya Kumasaka Head-to-Head Stats & Results

Japan Jumpei YamasakiJumpei Yamasaki - Japan
Jumpei Yamasaki
33 Bad Form
L
L
W
L
L
W
L

ATP Rank

981

Elo Score

19

Age 28, 1.80m, 75kg

H2H Record

2 - 3

Wins

40% - 60%

Sets Won

5 - 6

Takuya Kumasaka has won more matches in head to head against Jumpei Yamasaki

JapanTakuya KumasakaJapan - Takuya Kumasaka
Takuya Kumasaka
Average Form 50
W
W
W
W
L
W
L

ATP Rank

530

Elo Score

76

Age 27, 1.75m, 73kg

Verdict : Takuya Kumasaka has won more matches in head to head against Jumpei Yamasaki

H2H Stats
Latest Results
ALL SURFACES
HARD •
CLAY •
GRASS •

Head-to-Head - Full Stats

Performance
Profile
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Prize Money
Career
$71,661USD
$33,433USD
Current Rank
981
530
Wins
H2H
2(40.0%)
3(60.0%)
Sets Won
H2H
5(45.5%)
6(54.5%)
Win Percentage
2026 Calendar Year
33.3%4 / 12 Matches
50.0%12 / 24 Matches
Win Percentage
Last 12 Months
46.9%15 / 32 Matches
60.0%42 / 70 Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Main Hand
Right-handed
Right-handed
Age
28
27
Birthday
July 2, 1997
October 12, 1998
Height
1.80m
1.75m
Weight
75kg
73kg

Head-to-Head Record

Date
Tournament
Results
 
 

Sep 19
2025

M25 Takasaki ITF Men
Hard

Jumpei Yamasaki

1

 - 

2

Takuya Kumasaka

Dec 29
2023

M15 Yanagawa 2 ITF Men
Hard

Jumpei Yamasaki

2

 - 

0

Takuya Kumasaka

Sep 7
2023

M25 Sapporo ITF Men
Hard

Jumpei Yamasaki

0

 - 

2

Takuya Kumasaka

Jun 1
2023

M15 Karuizawa ITF Men
Clay

Jumpei Yamasaki

2

 - 

0

Takuya Kumasaka

Win Percentage (Match / Set)

2026 Calendar Year
Last 12 Months
Jumpei Yamasaki
 
33% Win50% Win

Takuya Kumasaka is performing better in the current calendar year.

Takuya Kumasaka
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Wins
33%
50%
Match Wins (3 Sets)
33%
52%
Match Wins (5 Sets)
N/A
N/A
Wins in Straight Sets
8%
46%
Wins From Behind
20%
8%
Won At Least 1 Set
58%
71%
Set 1 Win
25%
58%
Set 2 Win
42%
58%
Set 3 Win
50%
20%
Set 4 Win
N/A
N/A
Set 5 Win
N/A
N/A
Jumpei Yamasaki
 
47% Win60% Win

Takuya Kumasaka is performing better in the trailing 12 months.

Jumpei Yamasaki
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Wins
47%
60%
Match Wins (3 Sets)
45%
61%
Match Wins (5 Sets)
N/A
N/A
Wins in Straight Sets
34%
44%
Wins From Behind
15%
24%
Won At Least 1 Set
63%
71%
Set 1 Win
44%
54%
Set 2 Win
48%
61%
Set 3 Win
44%
65%
Set 4 Win
N/A
N/A
Set 5 Win
N/A
N/A

Aces - Over/Under, Match Total, Average (3 Set Matches)

2026 Calendar Year
Last 12 Months
Milestones
Over
Under
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Aces Per Match
3.50
3.00
6.50
Most Aces in a match
0%
83%
N/A
1+
100%
100%
100%
2+
100%
83%
92%
3+
50%
67%
92%
4+
50%
17%
84%
5+
50%
17%
67%
6+
0%
0%
67%
7+
0%
0%
50%
8+
0%
0%
50%
9+
0%
0%
50%
10+
0%
0%
50%
15+
0%
0%
0%
20+
0%
0%
0%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Over 0.5
100%
100%
100%
Over 1.5
100%
83%
92%
Over 2.5
50%
67%
92%
Over 3.5
50%
17%
84%
Over 4.5
50%
17%
67%
Over 5.5
0%
17%
67%
Over 6.5
0%
0%
50%
Over 7.5
0%
0%
50%
Over 8.5
0%
0%
50%
Over 9.5
0%
0%
50%
Over 10.5
0%
0%
50%
Over 11.5
0%
0%
50%
Over 12.5
0%
0%
25%
Over 13.5
0%
0%
0%
Over 14.5
0%
0%
0%
Over 15.5
0%
0%
0%
Over 16.5
0%
0%
0%
Over 17.5
0%
0%
0%
Over 18.5
0%
0%
0%
Over 19.5
0%
0%
0%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Under 0.5
0%
0%
0%
Under 1.5
0%
17%
9%
Under 2.5
50%
33%
9%
Under 3.5
50%
83%
17%
Under 4.5
50%
83%
34%
Under 5.5
100%
83%
34%
Under 6.5
100%
100%
50%
Under 7.5
100%
100%
50%
Under 8.5
100%
100%
50%
Under 9.5
100%
100%
50%
Under 10.5
100%
100%
50%
Under 11.5
100%
100%
50%
Under 12.5
100%
100%
75%
Under 13.5
100%
100%
100%
Under 14.5
100%
100%
100%
Milestones
Over
Under
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Aces Per Match
3.25
1.95
5.20
Most Aces in a match
25%
45%
N/A
1+
75%
82%
98%
2+
75%
55%
93%
3+
50%
27%
84%
4+
50%
14%
75%
5+
50%
14%
66%
6+
0%
0%
64%
7+
0%
0%
45%
8+
0%
0%
42%
9+
0%
0%
40%
10+
0%
0%
25%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Over 0.5
75%
82%
98%
Over 1.5
75%
55%
93%
Over 2.5
50%
27%
84%
Over 3.5
50%
14%
75%
Over 4.5
50%
14%
66%
Over 5.5
25%
5%
64%
Over 6.5
0%
0%
45%
Over 7.5
0%
0%
42%
Over 8.5
0%
0%
40%
Over 9.5
0%
0%
25%
Over 10.5
0%
0%
25%
Over 11.5
0%
0%
25%
Over 12.5
0%
0%
13%
Over 13.5
0%
0%
0%
Over 14.5
0%
0%
0%
Over 15.5
0%
0%
0%
Over 16.5
0%
0%
0%
Over 17.5
0%
0%
0%
Over 18.5
0%
0%
0%
Over 19.5
0%
0%
0%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Under 0.5
25%
18%
3%
Under 1.5
25%
45%
7%
Under 2.5
50%
73%
16%
Under 3.5
50%
86%
25%
Under 4.5
50%
86%
34%
Under 5.5
75%
95%
37%
Under 6.5
100%
100%
56%
Under 7.5
100%
100%
58%
Under 8.5
100%
100%
60%
Under 9.5
100%
100%
75%
Under 10.5
100%
100%
75%
Under 11.5
100%
100%
75%
Under 12.5
100%
100%
88%
Under 13.5
100%
100%
100%
Under 14.5
100%
100%
100%

Match Total Games - Over/Under

2026 Calendar Year
Last 12 Months
Total Games In A Set
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Average Games in a Set
8.75
9.38
9.07
Over 6.5
92%
90%
91%
Over 7.5
83%
76%
80%
Over 8.5
50%
62%
56%
Over 9.5
25%
52%
39%
Over 10.5
8%
24%
16%
Over 11.5
8%
24%
16%
Over 12.5
8%
10%
9%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Over 12.5
100%
95%
98%
Over 13.5
100%
86%
93%
Over 14.5
92%
86%
89%
Over 15.5
92%
86%
89%
Over 16.5
75%
67%
71%
Over 17.5
67%
67%
67%
Over 18.5
67%
52%
60%
Over 19.5
67%
38%
53%
Over 20.5
58%
29%
44%
Over 21.5
50%
29%
40%
Over 22.5
50%
19%
35%
Over 23.5
42%
19%
31%
Over 24.5
42%
19%
31%
Over 25.5
33%
14%
24%
Over 26.5
33%
14%
24%
Over 27.5
33%
14%
24%
Over 28.5
33%
14%
24%
Over 29.5
33%
10%
22%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Over 18.5
N/A
N/A
N/A
Over 19.5
N/A
N/A
N/A
Over 20.5
N/A
N/A
N/A
Over 21.5
N/A
N/A
N/A
Over 22.5
N/A
N/A
N/A
Over 23.5
N/A
N/A
N/A
Over 24.5
N/A
N/A
N/A
Over 25.5
N/A
N/A
N/A
Over 26.5
N/A
N/A
N/A
Over 27.5
N/A
N/A
N/A
Over 28.5
N/A
N/A
N/A
Over 29.5
N/A
N/A
N/A
Over 30.5
N/A
N/A
N/A
Over 31.5
N/A
N/A
N/A
Over 32.5
N/A
N/A
N/A
Over 33.5
N/A
N/A
N/A
Over 34.5
N/A
N/A
N/A
Over 35.5
N/A
N/A
N/A
Over 36.5
N/A
N/A
N/A
Over 37.5
N/A
N/A
N/A
Total Games In A Set
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Average Games in a Set
9
9.19
9.1
Over 6.5
94%
93%
94%
Over 7.5
84%
81%
83%
Over 8.5
55%
61%
58%
Over 9.5
26%
39%
33%
Over 10.5
13%
18%
16%
Over 11.5
13%
18%
16%
Over 12.5
13%
9%
11%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Over 12.5
97%
99%
98%
Over 13.5
90%
94%
92%
Over 14.5
84%
88%
86%
Over 15.5
84%
82%
83%
Over 16.5
65%
72%
69%
Over 17.5
55%
64%
60%
Over 18.5
48%
52%
50%
Over 19.5
48%
42%
45%
Over 20.5
42%
37%
40%
Over 21.5
39%
37%
38%
Over 22.5
35%
30%
33%
Over 23.5
29%
24%
27%
Over 24.5
29%
24%
27%
Over 25.5
19%
22%
21%
Over 26.5
19%
21%
20%
Over 27.5
19%
16%
18%
Over 28.5
16%
13%
15%
Over 29.5
16%
12%
14%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Over 18.5
N/A
N/A
N/A
Over 19.5
N/A
N/A
N/A
Over 20.5
N/A
N/A
N/A
Over 21.5
N/A
N/A
N/A
Over 22.5
N/A
N/A
N/A
Over 23.5
N/A
N/A
N/A
Over 24.5
N/A
N/A
N/A
Over 25.5
N/A
N/A
N/A
Over 26.5
N/A
N/A
N/A
Over 27.5
N/A
N/A
N/A
Over 28.5
N/A
N/A
N/A
Over 29.5
N/A
N/A
N/A
Over 30.5
N/A
N/A
N/A
Over 31.5
N/A
N/A
N/A
Over 32.5
N/A
N/A
N/A
Over 33.5
N/A
N/A
N/A
Over 34.5
N/A
N/A
N/A
Over 35.5
N/A
N/A
N/A
Over 36.5
N/A
N/A
N/A
Over 37.5
N/A
N/A
N/A

Break of Serve (Break Points Won) - Over/Under

2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Breaks Per Match
5.5
2.42
7.92
Over 0.5
100%
67%
100%
Over 1.5
100%
67%
100%
Over 2.5
100%
33%
92%
Over 3.5
100%
17%
92%
Over 4.5
100%
0%
92%
Over 5.5
50%
0%
59%
Over 6.5
50%
0%
59%
Over 7.5
0%
0%
25%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A
Over 8.5
N/A
N/A
N/A
Over 9.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Average Break-Points Converted (Set 1)
1.25
1.08
2.33
Average Break-Points Converted (Set 2)
2.75
1.33
4.08
Average Break-Points Converted (Set 3)
1.5
N/A
N/A
will Break Serve %
67%
29%
N/A
will not Break Serve %
50%
26%
N/A
Over 0.5
100%
50%
92%
Over 1.5
0%
33%
84%
Over 2.5
0%
0%
42%
Over 3.5
0%
0%
9%
Over 4.5
0%
0%
9%
Over 5.5
0%
0%
0%
Over 6.5
0%
0%
0%
Over 7.5
0%
0%
0%

Breaks Per Set data uses Set 1 as a sample.

3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Breaks Per Match
4.12
3.45
7.57
Over 0.5
100%
82%
100%
Over 1.5
100%
73%
100%
Over 2.5
100%
55%
98%
Over 3.5
75%
50%
96%
Over 4.5
50%
32%
81%
Over 5.5
25%
18%
67%
Over 6.5
25%
9%
56%
Over 7.5
0%
5%
26%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A
Over 8.5
N/A
N/A
N/A
Over 9.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Average Break-Points Converted (Set 1)
1.25
1.41
2.66
Average Break-Points Converted (Set 2)
2.12
1.52
3.64
Average Break-Points Converted (Set 3)
1.5
1.92
3.42
will Break Serve %
71%
41%
N/A
will not Break Serve %
35%
46%
N/A
Over 0.5
100%
59%
96%
Over 1.5
25%
41%
87%
Over 2.5
0%
18%
53%
Over 3.5
0%
0%
16%

Breaks Per Set data uses Set 1 as a sample.

Double Faults - Over/Under

2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Double Faults Per Match
1
2.33
3.33
Over 0.5 (1+)
50%
100%
100%
Over 1.5 (2+)
50%
83%
92%
Over 2.5 (3+)
0%
50%
92%
Over 3.5 (4+)
0%
0%
67%
Over 4.5 (5+)
0%
0%
67%
Over 5.5 (6+)
0%
0%
67%
Over 6.5 (7+)
0%
0%
59%
Over 7.5 (8+)
0%
0%
25%
Over 8.5 (9+)
0%
0%
0%
Over 9.5 (10+)
0%
0%
0%
Over 10.5 (11+)
0%
0%
0%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Double Faults Per Match
N/A
N/A
N/A
Over 0.5 (1+)
N/A
N/A
N/A
Over 1.5 (2+)
N/A
N/A
N/A
Over 2.5 (3+)
N/A
N/A
N/A
Over 3.5 (4+)
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Over 11.5 (12+)
0%
0%
N/A
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Double Faults Per Match
1.5
2.05
3.55
Over 0.5 (1+)
75%
86%
98%
Over 1.5 (2+)
50%
59%
79%
Over 2.5 (3+)
25%
45%
76%
Over 3.5 (4+)
0%
9%
63%
Over 4.5 (5+)
0%
5%
54%
Over 5.5 (6+)
0%
0%
49%
Over 6.5 (7+)
0%
0%
32%
Over 7.5 (8+)
0%
0%
17%
Over 8.5 (9+)
0%
0%
3%
Over 9.5 (10+)
0%
0%
3%
Over 10.5 (11+)
0%
0%
0%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Double Faults Per Match
N/A
N/A
N/A
Over 0.5 (1+)
N/A
N/A
N/A
Over 1.5 (2+)
N/A
N/A
N/A
Over 2.5 (3+)
N/A
N/A
N/A
Over 3.5 (4+)
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A

Tie Breaks - Over/Under

2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
(Match)
Takuya Kumasaka
(Match)
Average
Tie Breaks Per Match
0.42
0.29
0.35
Over 0.5
42%
19%
30%
Over 1.5
0%
5%
2%
Over 2.5
0%
5%
2%
Under 0.5
58%
81%
30%
Under 1.5
100%
95%
2%
Under 2.5
100%
95%
2%
Data Point
Jumpei Yamasaki (Match)
Takuya Kumasaka (Match)
Average
Tie Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Under 0.5
N/A
N/A
N/A
Under 1.5
N/A
N/A
N/A
Under 2.5
N/A
N/A
N/A
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
(Match)
Takuya Kumasaka
(Match)
Average
Tie Breaks Per Match
0.32
0.27
0.3
Over 0.5
32%
24%
28%
Over 1.5
0%
1%
1%
Over 2.5
0%
1%
1%
Under 0.5
32%
24%
28%
Under 1.5
0%
1%
1%
Under 2.5
0%
1%
1%
Data Point
Jumpei Yamasaki (Match)
Takuya Kumasaka (Match)
Average
Tie Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Under 0.5
N/A
N/A
N/A
Under 1.5
N/A
N/A
N/A
Under 2.5
N/A
N/A
N/A

Net Points Won - Over/Under

2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Net Points Won Per Match
2.5
8.7
11.2
Over 4.5 (5+)
0%
80%
40%
Over 5.5 (6+)
0%
80%
40%
Over 6.5 (7+)
0%
40%
20%
Over 7.5 (8+)
0%
40%
20%
Over 8.5 (9+)
0%
0%
0%
Over 9.5 (10+)
0%
0%
0%
Over 10.5 (11+)
0%
0%
0%
Over 11.5 (12+)
0%
0%
0%
Over 14.5 (12+)
0%
0%
0%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Net Point Won Per Match
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Over 11.5 (12+)
N/A
N/A
N/A
Over 14.5 (15+)
N/A
N/A
N/A
Over 19.5 (20+)
N/A
N/A
N/A
Over 22.5 (23+)
N/A
N/A
N/A
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Net Points Won Per Match
8.17
7.56
15.73
Over 4.5 (5+)
33%
50%
42%
Over 5.5 (6+)
33%
50%
42%
Over 6.5 (7+)
33%
25%
29%
Over 7.5 (8+)
33%
25%
29%
Over 8.5 (9+)
33%
0%
17%
Over 9.5 (10+)
33%
0%
17%
Over 10.5 (11+)
33%
0%
17%
Over 11.5 (12+)
33%
0%
17%
Over 14.5 (15+)
33%
0%
17%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Net Points won Per Match
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Over 11.5 (12+)
N/A
N/A
N/A
Over 14.5 (15+)
N/A
N/A
N/A
Over 19.5 (20+)
N/A
N/A
N/A
Over 22.5 (23+)
N/A
N/A
N/A

Head-to-Head (Hard Courts)

Performance
Profile
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Wins
H2H
1(25.0%)
3(75.0%)
Sets Won
H2H
3(33.3%)
6(66.7%)
Win Percentage
2026 Calendar Year
33.3%4 / 12 Matches
52.4%11 / 21 Matches
Win Percentage
Last 12 Months
42.9%12 / 28 Matches
61.2%41 / 67 Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Main Hand
Right-handed
Right-handed
Age
28
27
Birthday
July 2, 1997
October 12, 1998
Height
1.80m
1.75m
Weight
75kg
73kg

Win Percentage (Hard Courts)

2026 Calendar Year
Last 12 Months
Jumpei Yamasaki
 
33% Win50% Win

Takuya Kumasaka is performing better in the current calendar year.

Takuya Kumasaka
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Wins
33%
52%
Match Wins (3 Sets)
33%
52%
Match Wins (5 Sets)
N/A
N/A
Wins in Straight Sets
8%
48%
Wins From Behind
20%
10%
Won At Least 1 Set
58%
71%
Set 1 Win
25%
62%
Set 2 Win
42%
57%
Set 3 Win
50%
25%
Set 4 Win
N/A
N/A
Set 5 Win
N/A
N/A
Jumpei Yamasaki
 
43% Win61% Win

Takuya Kumasaka is performing better in the trailing 12 months.

Jumpei Yamasaki
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Wins
43%
61%
Match Wins (3 Sets)
43%
61%
Match Wins (5 Sets)
N/A
N/A
Wins in Straight Sets
29%
45%
Wins From Behind
16%
25%
Won At Least 1 Set
61%
72%
Set 1 Win
39%
55%
Set 2 Win
46%
61%
Set 3 Win
44%
69%
Set 4 Win
N/A
N/A
Set 5 Win
N/A
N/A

Aces (Hard Courts)

2026 Calendar Year
Last 12 Months
Milestones
Over
Under
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Aces Per Match
3.50
3.00
6.50
Most Aces in a match
0%
83%
N/A
1+
100%
100%
100%
2+
100%
83%
92%
3+
50%
67%
92%
4+
50%
17%
84%
5+
50%
17%
67%
6+
0%
0%
67%
7+
0%
0%
50%
8+
0%
0%
50%
9+
0%
0%
50%
10+
0%
0%
50%
15+
0%
0%
0%
20+
0%
0%
0%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Over 0.5
100%
100%
100%
Over 1.5
100%
83%
92%
Over 2.5
50%
67%
92%
Over 3.5
50%
17%
84%
Over 4.5
50%
17%
67%
Over 5.5
0%
17%
67%
Over 6.5
0%
0%
50%
Over 7.5
0%
0%
50%
Over 8.5
0%
0%
50%
Over 9.5
0%
0%
50%
Over 10.5
0%
0%
50%
Over 11.5
0%
0%
50%
Over 12.5
0%
0%
25%
Over 13.5
0%
0%
0%
Over 14.5
0%
0%
0%
Over 15.5
0%
0%
0%
Over 16.5
0%
0%
0%
Over 17.5
0%
0%
0%
Over 18.5
0%
0%
0%
Over 19.5
0%
0%
0%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Under 0.5
0%
0%
0%
Under 1.5
0%
17%
9%
Under 2.5
50%
33%
9%
Under 3.5
50%
83%
17%
Under 4.5
50%
83%
34%
Under 5.5
100%
83%
34%
Under 6.5
100%
100%
50%
Under 7.5
100%
100%
50%
Under 8.5
100%
100%
50%
Under 9.5
100%
100%
50%
Under 10.5
100%
100%
50%
Under 11.5
100%
100%
50%
Under 12.5
100%
100%
75%
Under 13.5
100%
100%
100%
Under 14.5
100%
100%
100%
Milestones
Over
Under
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Aces Per Match
3.25
1.95
5.20
Most Aces in a match
25%
45%
N/A
1+
75%
82%
98%
2+
75%
55%
93%
3+
50%
27%
84%
4+
50%
14%
75%
5+
50%
14%
66%
6+
0%
0%
64%
7+
0%
0%
45%
8+
0%
0%
42%
9+
0%
0%
40%
10+
0%
0%
25%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Over 0.5
75%
82%
98%
Over 1.5
75%
55%
93%
Over 2.5
50%
27%
84%
Over 3.5
50%
14%
75%
Over 4.5
50%
14%
66%
Over 5.5
25%
5%
64%
Over 6.5
0%
0%
45%
Over 7.5
0%
0%
42%
Over 8.5
0%
0%
40%
Over 9.5
0%
0%
25%
Over 10.5
0%
0%
25%
Over 11.5
0%
0%
25%
Over 12.5
0%
0%
13%
Over 13.5
0%
0%
0%
Over 14.5
0%
0%
0%
Over 15.5
0%
0%
0%
Over 16.5
0%
0%
0%
Over 17.5
0%
0%
0%
Over 18.5
0%
0%
0%
Over 19.5
0%
0%
0%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Under 0.5
25%
18%
3%
Under 1.5
25%
45%
7%
Under 2.5
50%
73%
16%
Under 3.5
50%
86%
25%
Under 4.5
50%
86%
34%
Under 5.5
75%
95%
37%
Under 6.5
100%
100%
56%
Under 7.5
100%
100%
58%
Under 8.5
100%
100%
60%
Under 9.5
100%
100%
75%
Under 10.5
100%
100%
75%
Under 11.5
100%
100%
75%
Under 12.5
100%
100%
88%
Under 13.5
100%
100%
100%
Under 14.5
100%
100%
100%

Match Total Games (Hard Courts)

2026 Calendar Year
Last 12 Months
Total Games In A Set
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Average Games in a Set
8.75
9.38
9.07
Over 6.5
92%
90%
91%
Over 7.5
83%
76%
80%
Over 8.5
50%
62%
56%
Over 9.5
25%
52%
39%
Over 10.5
8%
24%
16%
Over 11.5
8%
24%
16%
Over 12.5
8%
10%
9%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Over 12.5
100%
95%
98%
Over 13.5
100%
86%
93%
Over 14.5
92%
86%
89%
Over 15.5
92%
86%
89%
Over 16.5
75%
67%
71%
Over 17.5
67%
67%
67%
Over 18.5
67%
52%
60%
Over 19.5
67%
38%
53%
Over 20.5
58%
29%
44%
Over 21.5
50%
29%
40%
Over 22.5
50%
19%
35%
Over 23.5
42%
19%
31%
Over 24.5
42%
19%
31%
Over 25.5
33%
14%
24%
Over 26.5
33%
14%
24%
Over 27.5
33%
14%
24%
Over 28.5
33%
14%
24%
Over 29.5
33%
10%
22%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Over 18.5
N/A
N/A
N/A
Over 19.5
N/A
N/A
N/A
Over 20.5
N/A
N/A
N/A
Over 21.5
N/A
N/A
N/A
Over 22.5
N/A
N/A
N/A
Over 23.5
N/A
N/A
N/A
Over 24.5
N/A
N/A
N/A
Over 25.5
N/A
N/A
N/A
Over 26.5
N/A
N/A
N/A
Over 27.5
N/A
N/A
N/A
Over 28.5
N/A
N/A
N/A
Over 29.5
N/A
N/A
N/A
Over 30.5
N/A
N/A
N/A
Over 31.5
N/A
N/A
N/A
Over 32.5
N/A
N/A
N/A
Over 33.5
N/A
N/A
N/A
Over 34.5
N/A
N/A
N/A
Over 35.5
N/A
N/A
N/A
Over 36.5
N/A
N/A
N/A
Over 37.5
N/A
N/A
N/A
Total Games In A Set
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Average Games in a Set
9
9.19
9.1
Over 6.5
94%
93%
94%
Over 7.5
84%
81%
83%
Over 8.5
55%
61%
58%
Over 9.5
26%
39%
33%
Over 10.5
13%
18%
16%
Over 11.5
13%
18%
16%
Over 12.5
13%
9%
11%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Over 12.5
97%
99%
98%
Over 13.5
90%
94%
92%
Over 14.5
84%
88%
86%
Over 15.5
84%
82%
83%
Over 16.5
65%
72%
69%
Over 17.5
55%
64%
60%
Over 18.5
48%
52%
50%
Over 19.5
48%
42%
45%
Over 20.5
42%
37%
40%
Over 21.5
39%
37%
38%
Over 22.5
35%
30%
33%
Over 23.5
29%
24%
27%
Over 24.5
29%
24%
27%
Over 25.5
19%
22%
21%
Over 26.5
19%
21%
20%
Over 27.5
19%
16%
18%
Over 28.5
16%
13%
15%
Over 29.5
16%
12%
14%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Over 18.5
N/A
N/A
N/A
Over 19.5
N/A
N/A
N/A
Over 20.5
N/A
N/A
N/A
Over 21.5
N/A
N/A
N/A
Over 22.5
N/A
N/A
N/A
Over 23.5
N/A
N/A
N/A
Over 24.5
N/A
N/A
N/A
Over 25.5
N/A
N/A
N/A
Over 26.5
N/A
N/A
N/A
Over 27.5
N/A
N/A
N/A
Over 28.5
N/A
N/A
N/A
Over 29.5
N/A
N/A
N/A
Over 30.5
N/A
N/A
N/A
Over 31.5
N/A
N/A
N/A
Over 32.5
N/A
N/A
N/A
Over 33.5
N/A
N/A
N/A
Over 34.5
N/A
N/A
N/A
Over 35.5
N/A
N/A
N/A
Over 36.5
N/A
N/A
N/A
Over 37.5
N/A
N/A
N/A

Break Points Won (Hard Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Breaks Per Match
5.5
2.42
7.92
Over 0.5
100%
67%
100%
Over 1.5
100%
67%
100%
Over 2.5
100%
33%
92%
Over 3.5
100%
17%
92%
Over 4.5
100%
0%
92%
Over 5.5
50%
0%
59%
Over 6.5
50%
0%
59%
Over 7.5
0%
0%
25%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A
Over 8.5
N/A
N/A
N/A
Over 9.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Average Break-Points Converted (Set 1)
1.25
1.08
2.33
Average Break-Points Converted (Set 2)
2.75
1.33
4.08
Average Break-Points Converted (Set 3)
1.5
N/A
N/A
will Break Serve %
67%
29%
N/A
will not Break Serve %
50%
26%
N/A
Over 0.5
100%
50%
92%
Over 1.5
0%
33%
84%
Over 2.5
0%
0%
42%
Over 3.5
0%
0%
9%
Over 4.5
0%
0%
9%
Over 5.5
0%
0%
0%
Over 6.5
0%
0%
0%
Over 7.5
0%
0%
0%

Breaks Per Set data uses Set 1 as a sample.

3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Breaks Per Match
4.12
3.45
7.57
Over 0.5
100%
82%
100%
Over 1.5
100%
73%
100%
Over 2.5
100%
55%
98%
Over 3.5
75%
50%
96%
Over 4.5
50%
32%
81%
Over 5.5
25%
18%
67%
Over 6.5
25%
9%
56%
Over 7.5
0%
5%
26%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A
Over 8.5
N/A
N/A
N/A
Over 9.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Average Break-Points Converted (Set 1)
1.25
1.41
2.66
Average Break-Points Converted (Set 2)
2.12
1.52
3.64
Average Break-Points Converted (Set 3)
1.5
1.92
3.42
will Break Serve %
71%
41%
N/A
will not Break Serve %
35%
46%
N/A
Over 0.5
100%
59%
96%
Over 1.5
25%
41%
87%
Over 2.5
0%
18%
53%
Over 3.5
0%
0%
16%

Breaks Per Set data uses Set 1 as a sample.

Double Faults (Hard Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Double Faults Per Match
1
2.33
3.33
Over 0.5 (1+)
50%
100%
100%
Over 1.5 (2+)
50%
83%
92%
Over 2.5 (3+)
0%
50%
92%
Over 3.5 (4+)
0%
0%
67%
Over 4.5 (5+)
0%
0%
67%
Over 5.5 (6+)
0%
0%
67%
Over 6.5 (7+)
0%
0%
59%
Over 7.5 (8+)
0%
0%
25%
Over 8.5 (9+)
0%
0%
0%
Over 9.5 (10+)
0%
0%
0%
Over 10.5 (11+)
0%
0%
0%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Double Faults Per Match
N/A
N/A
N/A
Over 0.5 (1+)
N/A
N/A
N/A
Over 1.5 (2+)
N/A
N/A
N/A
Over 2.5 (3+)
N/A
N/A
N/A
Over 3.5 (4+)
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Over 11.5 (12+)
0%
0%
N/A
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Double Faults Per Match
1.5
2.05
3.55
Over 0.5 (1+)
75%
86%
98%
Over 1.5 (2+)
50%
59%
79%
Over 2.5 (3+)
25%
45%
76%
Over 3.5 (4+)
0%
9%
63%
Over 4.5 (5+)
0%
5%
54%
Over 5.5 (6+)
0%
0%
49%
Over 6.5 (7+)
0%
0%
32%
Over 7.5 (8+)
0%
0%
17%
Over 8.5 (9+)
0%
0%
3%
Over 9.5 (10+)
0%
0%
3%
Over 10.5 (11+)
0%
0%
0%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Double Faults Per Match
N/A
N/A
N/A
Over 0.5 (1+)
N/A
N/A
N/A
Over 1.5 (2+)
N/A
N/A
N/A
Over 2.5 (3+)
N/A
N/A
N/A
Over 3.5 (4+)
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A

Tie Breaks (Hard Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
(Match)
Takuya Kumasaka
(Match)
Average
Tie Breaks Per Match
0.42
0.29
0.35
Over 0.5
17%
14%
16%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
83%
86%
85%
Under 1.5
100%
100%
100%
Under 2.5
100%
100%
100%
Data Point
Jumpei Yamasaki (Match)
Takuya Kumasaka (Match)
Average
Tie Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Under 0.5
N/A
N/A
N/A
Under 1.5
N/A
N/A
N/A
Under 2.5
N/A
N/A
N/A
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
(Match)
Takuya Kumasaka
(Match)
Average
Tie Breaks Per Match
0.36
0.27
0.3
Over 0.5
14%
13%
14%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
86%
87%
87%
Under 1.5
100%
100%
100%
Under 2.5
100%
100%
100%
Data Point
Jumpei Yamasaki (Match)
Takuya Kumasaka (Match)
Average
Tie Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Under 0.5
N/A
N/A
N/A
Under 1.5
N/A
N/A
N/A
Under 2.5
N/A
N/A
N/A

Net Points Won (Hard Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Net Points Won Per Match
2.5
8.7
11.2
Over 4.5 (5+)
0%
80%
40%
Over 5.5 (6+)
0%
80%
40%
Over 6.5 (7+)
0%
40%
20%
Over 7.5 (8+)
0%
40%
20%
Over 8.5 (9+)
0%
0%
0%
Over 9.5 (10+)
0%
0%
0%
Over 10.5 (11+)
0%
0%
0%
Over 11.5 (12+)
0%
0%
0%
Over 14.5 (12+)
0%
0%
0%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Net Point Won Per Match
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Over 11.5 (12+)
N/A
N/A
N/A
Over 14.5 (15+)
N/A
N/A
N/A
Over 19.5 (20+)
N/A
N/A
N/A
Over 22.5 (23+)
N/A
N/A
N/A
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Net Points Won Per Match
8.17
7.56
15.73
Over 4.5 (5+)
33%
50%
42%
Over 5.5 (6+)
33%
50%
42%
Over 6.5 (7+)
33%
25%
29%
Over 7.5 (8+)
33%
25%
29%
Over 8.5 (9+)
33%
0%
17%
Over 9.5 (10+)
33%
0%
17%
Over 10.5 (11+)
33%
0%
17%
Over 11.5 (12+)
33%
0%
17%
Over 14.5 (15+)
33%
0%
17%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Net Points won Per Match
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Over 11.5 (12+)
N/A
N/A
N/A
Over 14.5 (15+)
N/A
N/A
N/A
Over 19.5 (20+)
N/A
N/A
N/A
Over 22.5 (23+)
N/A
N/A
N/A

Head-to-Head (Clay Courts)

Performance
Profile
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Wins
H2H
1(100.0%)
0(0.0%)
Sets Won
H2H
2(100.0%)
0(0.0%)
Win Percentage
2026 Calendar Year
N/A0 / 0 Matches
N/A0 / 0 Matches
Win Percentage
Last 12 Months
66.7%2 / 3 Matches
N/A0 / 0 Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Main Hand
Right-handed
Right-handed
Age
28
27
Birthday
July 2, 1997
October 12, 1998
Height
1.80m
1.75m
Weight
75kg
73kg

Win Percentage (Clay Courts)

2026 Calendar Year
Last 12 Months
Jumpei Yamasaki
 
33% Win50% Win

Takuya Kumasaka is performing better in the current calendar year.

Takuya Kumasaka
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Wins
N/A
N/A
Match Wins (3 Sets)
N/A
N/A
Match Wins (5 Sets)
N/A
N/A
Wins in Straight Sets
N/A
N/A
Wins From Behind
N/A
N/A
Won At Least 1 Set
N/A
N/A
Set 1 Win
N/A
N/A
Set 2 Win
N/A
N/A
Set 3 Win
N/A
N/A
Set 4 Win
N/A
N/A
Set 5 Win
N/A
N/A
Jumpei Yamasaki
 
67% WinN/A% Win

Takuya Kumasaka is performing better in the trailing 12 months.

Jumpei Yamasaki
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Wins
67%
N/A
Match Wins (3 Sets)
67%
N/A
Match Wins (5 Sets)
N/A
N/A
Wins in Straight Sets
67%
N/A
Wins From Behind
0%
N/A
Won At Least 1 Set
67%
N/A
Set 1 Win
67%
N/A
Set 2 Win
67%
N/A
Set 3 Win
N/A
N/A
Set 4 Win
N/A
N/A
Set 5 Win
N/A
N/A

Aces (Clay Courts)

2026 Calendar Year
Last 12 Months
Milestones
Over
Under
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Aces Per Match
N/A
N/A
N/A
Most Aces in a match
N/A
N/A
N/A
1+
N/A
N/A
N/A
2+
N/A
N/A
N/A
3+
N/A
N/A
N/A
4+
N/A
N/A
N/A
5+
N/A
N/A
N/A
6+
N/A
N/A
N/A
7+
N/A
N/A
N/A
8+
N/A
N/A
N/A
9+
N/A
N/A
N/A
10+
N/A
N/A
N/A
15+
N/A
N/A
N/A
20+
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A
Over 8.5
N/A
N/A
N/A
Over 9.5
N/A
N/A
N/A
Over 10.5
N/A
N/A
N/A
Over 11.5
N/A
N/A
N/A
Over 12.5
N/A
N/A
N/A
Over 13.5
N/A
N/A
N/A
Over 14.5
N/A
N/A
N/A
Over 15.5
N/A
N/A
N/A
Over 16.5
N/A
N/A
N/A
Over 17.5
N/A
N/A
N/A
Over 18.5
N/A
N/A
N/A
Over 19.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Under 0.5
N/A
N/A
N/A
Under 1.5
N/A
N/A
N/A
Under 2.5
N/A
N/A
N/A
Under 3.5
N/A
N/A
N/A
Under 4.5
N/A
N/A
N/A
Under 5.5
N/A
N/A
N/A
Under 6.5
N/A
N/A
N/A
Under 7.5
N/A
N/A
N/A
Under 8.5
N/A
N/A
N/A
Under 9.5
N/A
N/A
N/A
Under 10.5
N/A
N/A
N/A
Under 11.5
N/A
N/A
N/A
Under 12.5
N/A
N/A
N/A
Under 13.5
N/A
N/A
N/A
Under 14.5
N/A
N/A
N/A
Milestones
Over
Under
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Aces Per Match
N/A
N/A
N/A
Most Aces in a match
25%
45%
N/A
1+
N/A
N/A
N/A
2+
N/A
N/A
N/A
3+
N/A
N/A
N/A
4+
N/A
N/A
N/A
5+
N/A
N/A
N/A
6+
N/A
N/A
N/A
7+
N/A
N/A
N/A
8+
N/A
N/A
N/A
9+
N/A
N/A
N/A
10+
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A
Over 8.5
N/A
N/A
N/A
Over 9.5
N/A
N/A
N/A
Over 10.5
N/A
N/A
N/A
Over 11.5
N/A
N/A
N/A
Over 12.5
N/A
N/A
N/A
Over 13.5
N/A
N/A
N/A
Over 14.5
N/A
N/A
N/A
Over 15.5
N/A
N/A
N/A
Over 16.5
N/A
N/A
N/A
Over 17.5
N/A
N/A
N/A
Over 18.5
N/A
N/A
N/A
Over 19.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Under 0.5
N/A
N/A
N/A
Under 1.5
N/A
N/A
N/A
Under 2.5
N/A
N/A
N/A
Under 3.5
N/A
N/A
N/A
Under 4.5
N/A
N/A
N/A
Under 5.5
N/A
N/A
N/A
Under 6.5
N/A
N/A
N/A
Under 7.5
N/A
N/A
N/A
Under 8.5
N/A
N/A
N/A
Under 9.5
N/A
N/A
N/A
Under 10.5
N/A
N/A
N/A
Under 11.5
N/A
N/A
N/A
Under 12.5
N/A
N/A
N/A
Under 13.5
N/A
N/A
N/A
Under 14.5
N/A
N/A
N/A

Match Total Games (Clay Courts)

2026 Calendar Year
Last 12 Months
Total Games In A Set
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Average Games in a Set
8.75
9.38
9.07
Over 6.5
92%
90%
91%
Over 7.5
83%
76%
80%
Over 8.5
50%
62%
56%
Over 9.5
25%
52%
39%
Over 10.5
8%
24%
16%
Over 11.5
8%
24%
16%
Over 12.5
8%
10%
9%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Over 12.5
100%
95%
98%
Over 13.5
100%
86%
93%
Over 14.5
92%
86%
89%
Over 15.5
92%
86%
89%
Over 16.5
75%
67%
71%
Over 17.5
67%
67%
67%
Over 18.5
67%
52%
60%
Over 19.5
67%
38%
53%
Over 20.5
58%
29%
44%
Over 21.5
50%
29%
40%
Over 22.5
50%
19%
35%
Over 23.5
42%
19%
31%
Over 24.5
42%
19%
31%
Over 25.5
33%
14%
24%
Over 26.5
33%
14%
24%
Over 27.5
33%
14%
24%
Over 28.5
33%
14%
24%
Over 29.5
33%
10%
22%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Over 18.5
N/A
N/A
N/A
Over 19.5
N/A
N/A
N/A
Over 20.5
N/A
N/A
N/A
Over 21.5
N/A
N/A
N/A
Over 22.5
N/A
N/A
N/A
Over 23.5
N/A
N/A
N/A
Over 24.5
N/A
N/A
N/A
Over 25.5
N/A
N/A
N/A
Over 26.5
N/A
N/A
N/A
Over 27.5
N/A
N/A
N/A
Over 28.5
N/A
N/A
N/A
Over 29.5
N/A
N/A
N/A
Over 30.5
N/A
N/A
N/A
Over 31.5
N/A
N/A
N/A
Over 32.5
N/A
N/A
N/A
Over 33.5
N/A
N/A
N/A
Over 34.5
N/A
N/A
N/A
Over 35.5
N/A
N/A
N/A
Over 36.5
N/A
N/A
N/A
Over 37.5
N/A
N/A
N/A
Total Games In A Set
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Average Games in a Set
9
9.19
9.1
Over 6.5
94%
93%
94%
Over 7.5
84%
81%
83%
Over 8.5
55%
61%
58%
Over 9.5
26%
39%
33%
Over 10.5
13%
18%
16%
Over 11.5
13%
18%
16%
Over 12.5
13%
9%
11%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Over 12.5
97%
99%
98%
Over 13.5
90%
94%
92%
Over 14.5
84%
88%
86%
Over 15.5
84%
82%
83%
Over 16.5
65%
72%
69%
Over 17.5
55%
64%
60%
Over 18.5
48%
52%
50%
Over 19.5
48%
42%
45%
Over 20.5
42%
37%
40%
Over 21.5
39%
37%
38%
Over 22.5
35%
30%
33%
Over 23.5
29%
24%
27%
Over 24.5
29%
24%
27%
Over 25.5
19%
22%
21%
Over 26.5
19%
21%
20%
Over 27.5
19%
16%
18%
Over 28.5
16%
13%
15%
Over 29.5
16%
12%
14%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Over 18.5
N/A
N/A
N/A
Over 19.5
N/A
N/A
N/A
Over 20.5
N/A
N/A
N/A
Over 21.5
N/A
N/A
N/A
Over 22.5
N/A
N/A
N/A
Over 23.5
N/A
N/A
N/A
Over 24.5
N/A
N/A
N/A
Over 25.5
N/A
N/A
N/A
Over 26.5
N/A
N/A
N/A
Over 27.5
N/A
N/A
N/A
Over 28.5
N/A
N/A
N/A
Over 29.5
N/A
N/A
N/A
Over 30.5
N/A
N/A
N/A
Over 31.5
N/A
N/A
N/A
Over 32.5
N/A
N/A
N/A
Over 33.5
N/A
N/A
N/A
Over 34.5
N/A
N/A
N/A
Over 35.5
N/A
N/A
N/A
Over 36.5
N/A
N/A
N/A
Over 37.5
N/A
N/A
N/A

Break Points Won (Clay Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A
Over 8.5
N/A
N/A
N/A
Over 9.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Average Break-Points Converted (Set 1)
N/A
N/A
N/A
Average Break-Points Converted (Set 2)
N/A
N/A
N/A
Average Break-Points Converted (Set 3)
N/A
N/A
N/A
will Break Serve %
N/A
N/A
N/A
will not Break Serve %
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A

Breaks Per Set data uses Set 1 as a sample.

3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A
Over 8.5
N/A
N/A
N/A
Over 9.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Average Break-Points Converted (Set 1)
N/A
N/A
2.66
Average Break-Points Converted (Set 2)
N/A
N/A
3.64
Average Break-Points Converted (Set 3)
N/A
N/A
3.42
will Break Serve %
N/A
N/A
N/A
will not Break Serve %
N/A
N/A
N/A
Over 0.5
N/A
N/A
96%
Over 1.5
N/A
N/A
87%
Over 2.5
N/A
N/A
53%
Over 3.5
N/A
N/A
16%

Breaks Per Set data uses Set 1 as a sample.

Double Faults (Clay Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Double Faults Per Match
N/A
N/A
N/A
Over 0.5 (1+)
N/A
N/A
N/A
Over 1.5 (2+)
N/A
N/A
N/A
Over 2.5 (3+)
N/A
N/A
N/A
Over 3.5 (4+)
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Double Faults Per Match
N/A
N/A
N/A
Over 0.5 (1+)
N/A
N/A
N/A
Over 1.5 (2+)
N/A
N/A
N/A
Over 2.5 (3+)
N/A
N/A
N/A
Over 3.5 (4+)
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Over 11.5 (12+)
0%
0%
N/A
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Double Faults Per Match
N/A
N/A
N/A
Over 0.5 (1+)
N/A
N/A
N/A
Over 1.5 (2+)
N/A
N/A
N/A
Over 2.5 (3+)
N/A
N/A
N/A
Over 3.5 (4+)
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Double Faults Per Match
N/A
N/A
N/A
Over 0.5 (1+)
N/A
N/A
N/A
Over 1.5 (2+)
N/A
N/A
N/A
Over 2.5 (3+)
N/A
N/A
N/A
Over 3.5 (4+)
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A

Tie Breaks (Clay Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
(Match)
Takuya Kumasaka
(Match)
Average
Tie Breaks Per Match
N/A
N/A
0.35
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Under 0.5
N/A
N/A
N/A
Under 1.5
N/A
N/A
N/A
Under 2.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki (Match)
Takuya Kumasaka (Match)
Average
Tie Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Under 0.5
N/A
N/A
N/A
Under 1.5
N/A
N/A
N/A
Under 2.5
N/A
N/A
N/A
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
(Match)
Takuya Kumasaka
(Match)
Average
Tie Breaks Per Match
0
N/A
0.3
Over 0.5
0%
N/A
N/A
Over 1.5
0%
N/A
N/A
Over 2.5
0%
N/A
N/A
Under 0.5
100%
N/A
50%
Under 1.5
100%
N/A
50%
Under 2.5
100%
N/A
50%
Data Point
Jumpei Yamasaki (Match)
Takuya Kumasaka (Match)
Average
Tie Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Under 0.5
N/A
N/A
N/A
Under 1.5
N/A
N/A
N/A
Under 2.5
N/A
N/A
N/A

Net Points Won (Clay Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Net Points Won Per Match
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Over 11.5 (12+)
N/A
N/A
N/A
Over 14.5 (12+)
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Net Point Won Per Match
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Over 11.5 (12+)
N/A
N/A
N/A
Over 14.5 (15+)
N/A
N/A
N/A
Over 19.5 (20+)
N/A
N/A
N/A
Over 22.5 (23+)
N/A
N/A
N/A
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Net Points Won Per Match
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Over 11.5 (12+)
N/A
N/A
N/A
Over 14.5 (15+)
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Net Points won Per Match
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Over 11.5 (12+)
N/A
N/A
N/A
Over 14.5 (15+)
N/A
N/A
N/A
Over 19.5 (20+)
N/A
N/A
N/A
Over 22.5 (23+)
N/A
N/A
N/A

Head-to-Head (Grass Courts)

Performance
Profile
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Wins
H2H
0(0%)
0(0%)
Sets Won
H2H
0(0%)
0(0%)
Win Percentage
2026 Calendar Year
N/A0 / 0 Matches
N/A0 / 0 Matches
Win Percentage
Last 12 Months
N/A0 / 0 Matches
N/A0 / 0 Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Main Hand
Right-handed
Right-handed
Age
28
27
Birthday
July 2, 1997
October 12, 1998
Height
1.80m
1.75m
Weight
75kg
73kg

Win Percentage (Grass Courts)

2026 Calendar Year
Last 12 Months
Jumpei Yamasaki
 
33% Win50% Win

Takuya Kumasaka is performing better in the current calendar year.

Takuya Kumasaka
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Wins
N/A
N/A
Match Wins (3 Sets)
N/A
N/A
Match Wins (5 Sets)
N/A
N/A
Wins in Straight Sets
N/A
N/A
Wins From Behind
N/A
N/A
Won At Least 1 Set
N/A
N/A
Set 1 Win
N/A
N/A
Set 2 Win
N/A
N/A
Set 3 Win
N/A
N/A
Set 4 Win
N/A
N/A
Set 5 Win
N/A
N/A
Jumpei Yamasaki
 
N/A% WinN/A% Win

Jumpei Yamasaki is performing better in the trailing 12 months.

Jumpei Yamasaki
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Wins
N/A
N/A
Match Wins (3 Sets)
N/A
N/A
Match Wins (5 Sets)
N/A
N/A
Wins in Straight Sets
N/A
N/A
Wins From Behind
N/A
N/A
Won At Least 1 Set
N/A
N/A
Set 1 Win
N/A
N/A
Set 2 Win
N/A
N/A
Set 3 Win
N/A
N/A
Set 4 Win
N/A
N/A
Set 5 Win
N/A
N/A

Aces (Grass Courts)

2026 Calendar Year
Last 12 Months
Milestones
Over
Under
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Aces Per Match
N/A
N/A
N/A
Most Aces in a match
N/A
N/A
N/A
1+
N/A
N/A
N/A
2+
N/A
N/A
N/A
3+
N/A
N/A
N/A
4+
N/A
N/A
N/A
5+
N/A
N/A
N/A
6+
N/A
N/A
N/A
7+
N/A
N/A
N/A
8+
N/A
N/A
N/A
9+
N/A
N/A
N/A
10+
N/A
N/A
N/A
15+
N/A
N/A
N/A
20+
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A
Over 8.5
N/A
N/A
N/A
Over 9.5
N/A
N/A
N/A
Over 10.5
N/A
N/A
N/A
Over 11.5
N/A
N/A
N/A
Over 12.5
N/A
N/A
N/A
Over 13.5
N/A
N/A
N/A
Over 14.5
N/A
N/A
N/A
Over 15.5
N/A
N/A
N/A
Over 16.5
N/A
N/A
N/A
Over 17.5
N/A
N/A
N/A
Over 18.5
N/A
N/A
N/A
Over 19.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Under 0.5
N/A
N/A
N/A
Under 1.5
N/A
N/A
N/A
Under 2.5
N/A
N/A
N/A
Under 3.5
N/A
N/A
N/A
Under 4.5
N/A
N/A
N/A
Under 5.5
N/A
N/A
N/A
Under 6.5
N/A
N/A
N/A
Under 7.5
N/A
N/A
N/A
Under 8.5
N/A
N/A
N/A
Under 9.5
N/A
N/A
N/A
Under 10.5
N/A
N/A
N/A
Under 11.5
N/A
N/A
N/A
Under 12.5
N/A
N/A
N/A
Under 13.5
N/A
N/A
N/A
Under 14.5
N/A
N/A
N/A
Milestones
Over
Under
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Aces Per Match
N/A
N/A
N/A
Most Aces in a match
25%
45%
N/A
1+
N/A
N/A
N/A
2+
N/A
N/A
N/A
3+
N/A
N/A
N/A
4+
N/A
N/A
N/A
5+
N/A
N/A
N/A
6+
N/A
N/A
N/A
7+
N/A
N/A
N/A
8+
N/A
N/A
N/A
9+
N/A
N/A
N/A
10+
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A
Over 8.5
N/A
N/A
N/A
Over 9.5
N/A
N/A
N/A
Over 10.5
N/A
N/A
N/A
Over 11.5
N/A
N/A
N/A
Over 12.5
N/A
N/A
N/A
Over 13.5
N/A
N/A
N/A
Over 14.5
N/A
N/A
N/A
Over 15.5
N/A
N/A
N/A
Over 16.5
N/A
N/A
N/A
Over 17.5
N/A
N/A
N/A
Over 18.5
N/A
N/A
N/A
Over 19.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Under 0.5
N/A
N/A
N/A
Under 1.5
N/A
N/A
N/A
Under 2.5
N/A
N/A
N/A
Under 3.5
N/A
N/A
N/A
Under 4.5
N/A
N/A
N/A
Under 5.5
N/A
N/A
N/A
Under 6.5
N/A
N/A
N/A
Under 7.5
N/A
N/A
N/A
Under 8.5
N/A
N/A
N/A
Under 9.5
N/A
N/A
N/A
Under 10.5
N/A
N/A
N/A
Under 11.5
N/A
N/A
N/A
Under 12.5
N/A
N/A
N/A
Under 13.5
N/A
N/A
N/A
Under 14.5
N/A
N/A
N/A

Match Total Games (Grass Courts)

2026 Calendar Year
Last 12 Months
Total Games In A Set
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Average Games in a Set
8.75
9.38
9.07
Over 6.5
92%
90%
91%
Over 7.5
83%
76%
80%
Over 8.5
50%
62%
56%
Over 9.5
25%
52%
39%
Over 10.5
8%
24%
16%
Over 11.5
8%
24%
16%
Over 12.5
8%
10%
9%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Over 12.5
100%
95%
98%
Over 13.5
100%
86%
93%
Over 14.5
92%
86%
89%
Over 15.5
92%
86%
89%
Over 16.5
75%
67%
71%
Over 17.5
67%
67%
67%
Over 18.5
67%
52%
60%
Over 19.5
67%
38%
53%
Over 20.5
58%
29%
44%
Over 21.5
50%
29%
40%
Over 22.5
50%
19%
35%
Over 23.5
42%
19%
31%
Over 24.5
42%
19%
31%
Over 25.5
33%
14%
24%
Over 26.5
33%
14%
24%
Over 27.5
33%
14%
24%
Over 28.5
33%
14%
24%
Over 29.5
33%
10%
22%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Over 18.5
N/A
N/A
N/A
Over 19.5
N/A
N/A
N/A
Over 20.5
N/A
N/A
N/A
Over 21.5
N/A
N/A
N/A
Over 22.5
N/A
N/A
N/A
Over 23.5
N/A
N/A
N/A
Over 24.5
N/A
N/A
N/A
Over 25.5
N/A
N/A
N/A
Over 26.5
N/A
N/A
N/A
Over 27.5
N/A
N/A
N/A
Over 28.5
N/A
N/A
N/A
Over 29.5
N/A
N/A
N/A
Over 30.5
N/A
N/A
N/A
Over 31.5
N/A
N/A
N/A
Over 32.5
N/A
N/A
N/A
Over 33.5
N/A
N/A
N/A
Over 34.5
N/A
N/A
N/A
Over 35.5
N/A
N/A
N/A
Over 36.5
N/A
N/A
N/A
Over 37.5
N/A
N/A
N/A
Total Games In A Set
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Average Games in a Set
9
9.19
9.1
Over 6.5
94%
93%
94%
Over 7.5
84%
81%
83%
Over 8.5
55%
61%
58%
Over 9.5
26%
39%
33%
Over 10.5
13%
18%
16%
Over 11.5
13%
18%
16%
Over 12.5
13%
9%
11%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Over 12.5
97%
99%
98%
Over 13.5
90%
94%
92%
Over 14.5
84%
88%
86%
Over 15.5
84%
82%
83%
Over 16.5
65%
72%
69%
Over 17.5
55%
64%
60%
Over 18.5
48%
52%
50%
Over 19.5
48%
42%
45%
Over 20.5
42%
37%
40%
Over 21.5
39%
37%
38%
Over 22.5
35%
30%
33%
Over 23.5
29%
24%
27%
Over 24.5
29%
24%
27%
Over 25.5
19%
22%
21%
Over 26.5
19%
21%
20%
Over 27.5
19%
16%
18%
Over 28.5
16%
13%
15%
Over 29.5
16%
12%
14%
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Average
Over 18.5
N/A
N/A
N/A
Over 19.5
N/A
N/A
N/A
Over 20.5
N/A
N/A
N/A
Over 21.5
N/A
N/A
N/A
Over 22.5
N/A
N/A
N/A
Over 23.5
N/A
N/A
N/A
Over 24.5
N/A
N/A
N/A
Over 25.5
N/A
N/A
N/A
Over 26.5
N/A
N/A
N/A
Over 27.5
N/A
N/A
N/A
Over 28.5
N/A
N/A
N/A
Over 29.5
N/A
N/A
N/A
Over 30.5
N/A
N/A
N/A
Over 31.5
N/A
N/A
N/A
Over 32.5
N/A
N/A
N/A
Over 33.5
N/A
N/A
N/A
Over 34.5
N/A
N/A
N/A
Over 35.5
N/A
N/A
N/A
Over 36.5
N/A
N/A
N/A
Over 37.5
N/A
N/A
N/A

Break Points Won (Grass Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A
Over 8.5
N/A
N/A
N/A
Over 9.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Average Break-Points Converted (Set 1)
N/A
N/A
N/A
Average Break-Points Converted (Set 2)
N/A
N/A
N/A
Average Break-Points Converted (Set 3)
N/A
N/A
N/A
will Break Serve %
N/A
N/A
N/A
will not Break Serve %
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A

Breaks Per Set data uses Set 1 as a sample.

3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Over 3.5
N/A
N/A
N/A
Over 4.5
N/A
N/A
N/A
Over 5.5
N/A
N/A
N/A
Over 6.5
N/A
N/A
N/A
Over 7.5
N/A
N/A
N/A
Over 8.5
N/A
N/A
N/A
Over 9.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Average Break-Points Converted (Set 1)
N/A
N/A
2.66
Average Break-Points Converted (Set 2)
N/A
N/A
3.64
Average Break-Points Converted (Set 3)
N/A
N/A
3.42
will Break Serve %
N/A
N/A
N/A
will not Break Serve %
N/A
N/A
N/A
Over 0.5
N/A
N/A
96%
Over 1.5
N/A
N/A
87%
Over 2.5
N/A
N/A
53%
Over 3.5
N/A
N/A
16%

Breaks Per Set data uses Set 1 as a sample.

Double Faults (Grass Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Double Faults Per Match
N/A
N/A
N/A
Over 0.5 (1+)
N/A
N/A
N/A
Over 1.5 (2+)
N/A
N/A
N/A
Over 2.5 (3+)
N/A
N/A
N/A
Over 3.5 (4+)
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Double Faults Per Match
N/A
N/A
N/A
Over 0.5 (1+)
N/A
N/A
N/A
Over 1.5 (2+)
N/A
N/A
N/A
Over 2.5 (3+)
N/A
N/A
N/A
Over 3.5 (4+)
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Over 11.5 (12+)
0%
0%
N/A
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Double Faults Per Match
N/A
N/A
N/A
Over 0.5 (1+)
N/A
N/A
N/A
Over 1.5 (2+)
N/A
N/A
N/A
Over 2.5 (3+)
N/A
N/A
N/A
Over 3.5 (4+)
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Double Faults Per Match
N/A
N/A
N/A
Over 0.5 (1+)
N/A
N/A
N/A
Over 1.5 (2+)
N/A
N/A
N/A
Over 2.5 (3+)
N/A
N/A
N/A
Over 3.5 (4+)
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A

Tie Breaks (Grass Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
(Match)
Takuya Kumasaka
(Match)
Average
Tie Breaks Per Match
N/A
N/A
0.35
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Under 0.5
N/A
N/A
N/A
Under 1.5
N/A
N/A
N/A
Under 2.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki (Match)
Takuya Kumasaka (Match)
Average
Tie Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Under 0.5
N/A
N/A
N/A
Under 1.5
N/A
N/A
N/A
Under 2.5
N/A
N/A
N/A
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
(Match)
Takuya Kumasaka
(Match)
Average
Tie Breaks Per Match
N/A
N/A
0.3
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Under 0.5
N/A
N/A
N/A
Under 1.5
N/A
N/A
N/A
Under 2.5
N/A
N/A
N/A
Data Point
Jumpei Yamasaki (Match)
Takuya Kumasaka (Match)
Average
Tie Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
N/A
Over 1.5
N/A
N/A
N/A
Over 2.5
N/A
N/A
N/A
Under 0.5
N/A
N/A
N/A
Under 1.5
N/A
N/A
N/A
Under 2.5
N/A
N/A
N/A

Net Points Won (Grass Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Net Points Won Per Match
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Over 11.5 (12+)
N/A
N/A
N/A
Over 14.5 (12+)
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Net Point Won Per Match
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Over 11.5 (12+)
N/A
N/A
N/A
Over 14.5 (15+)
N/A
N/A
N/A
Over 19.5 (20+)
N/A
N/A
N/A
Over 22.5 (23+)
N/A
N/A
N/A
3 Set Matches
5 Set Matches
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Net Points Won Per Match
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Over 11.5 (12+)
N/A
N/A
N/A
Over 14.5 (15+)
N/A
N/A
N/A
Data Point
Jumpei Yamasaki
Takuya Kumasaka
Match Total
Net Points won Per Match
N/A
N/A
N/A
Over 4.5 (5+)
N/A
N/A
N/A
Over 5.5 (6+)
N/A
N/A
N/A
Over 6.5 (7+)
N/A
N/A
N/A
Over 7.5 (8+)
N/A
N/A
N/A
Over 8.5 (9+)
N/A
N/A
N/A
Over 9.5 (10+)
N/A
N/A
N/A
Over 10.5 (11+)
N/A
N/A
N/A
Over 11.5 (12+)
N/A
N/A
N/A
Over 14.5 (15+)
N/A
N/A
N/A
Over 19.5 (20+)
N/A
N/A
N/A
Over 22.5 (23+)
N/A
N/A
N/A

ATP Singles

Men

Singles

 

Ranking

Elo

971

Ozan Baris

19

972

Taym Al Azmeh

19

973

Filip Pieczonka

19

974

Egor Gerasimov

19

975

Justin Roberts

19

976

Kacper Szymkowiak

19

977

Lucas Bouquet

19

978

Alvin Nicholas Tudorica

19

979

Charlie Robertson

19

980

Peter Buldorini

19

981

Jumpei Yamasaki

19

982

Maxim Shin

19

983

Karl Friberg

19

984

Sydney Zick

19

985

Rares Teodor Pieleanu

19

ATP Singles

Men

Singles

 

Ranking

Elo

520

Shunsuke Mitsui

78

521

Alexey Vatutin

78

522

James Story

78

523

Felix Balshaw

78

524

Sasi Kumar Mukund

78

525

Maxwell McKennon

78

526

Pedro Vives Marcos

77

527

Filip Jeff Planinsek

77

528

Carlos Maria Zarate

77

529

Neil Oberleitner

76

530

Takuya Kumasaka

76

531

Amr Elsayed

76

532

Eric Vanshelboim

76

533

Jakub Paul

75

534

Tiago Torres

75

WTA Singles

Women

Singles

 

Ranking

Elo

1

Aryna Sabalenka

10,110

2

Elena Rybakina

8,555

3

Iga Swiatek

6,948

4

Coco Gauff

6,749

5

Jessica Pegula

6,136

6

Amanda Anisimova

5,985

7

Mirra Andreeva

4,181

8

Jasmine Paolini

3,722

9

Victoria Mboko

3,531

10

Elina Svitolina

3,530

11

Karolina Muchova

3,318

12

Belinda Bencic

3,090

P Time : 0.096644163131714