Vit Kopriva vs Rei Sakamoto Head-to-Head Stats & Results
Czech Republic Vit KoprivaVit Kopriva - Czech Republic
56 Average Form
W
L
W
L
L
W
W
ATP Rank
62
Elo Score
848
Age 28, 1.78m, 69kg
H2H Record
2 - 0
Wins
100% - 0%
Sets Won
4 - 0
Vit Kopriva has won more matches in head to head against Rei Sakamoto
JapanRei SakamotoJapan - Rei Sakamoto
Average Form 65
W
L
W
W
W
L
L
ATP Rank
159
Elo Score
382
Age 19, 1.93m, 80kg
Verdict : Vit Kopriva has won more matches in head to head against Rei Sakamoto
H2H Stats
Latest Results
ALL SURFACES
HARD •
CLAY •
GRASS •
Head-to-Head - Full Stats
Performance
Profile
Data Point
Vit Kopriva
Rei Sakamoto
Prize Money
Career
Career
$1,530,002USD
$28,907USD
Current Rank
62
159
Wins
H2H
H2H
2(100.0%)
0(0.0%)
Sets Won
H2H
H2H
4(100.0%)
0(0.0%)
Win Percentage
2026 Calendar Year
2026 Calendar Year
55.6%10 / 18 Matches
64.7%11 / 17 Matches
Win Percentage
Last 12 Months
Last 12 Months
56.0%42 / 75 Matches
59.7%37 / 62 Matches
Data Point
Vit Kopriva
Rei Sakamoto
Main Hand
Right-handed
Right-handed
Age
28
19
Birthday
June 15, 1997
June 24, 2006
Height
1.78m
1.93m
Weight
69kg
80kg
Head-to-Head Record
Date
Tournament
Results
Mar 3
2026
Indian Wells ATP
Hard
Vit Kopriva
2
-0
Rei Sakamoto
Mar 18
2024
Miami ATP
Hard
Vit Kopriva
2
-0
Rei Sakamoto
Win Percentage (Match / Set)
2026 Calendar Year
Last 12 Months
Data Point
Vit Kopriva
Rei Sakamoto
Match Wins
56%
65%
Match Wins (3 Sets)
60%
69%
Match Wins (5 Sets)
50%
0%
Wins in Straight Sets
39%
53%
Wins From Behind
13%
25%
Won At Least 1 Set
78%
71%
Set 1 Win
67%
53%
Set 2 Win
50%
65%
Set 3 Win
29%
100%
Set 4 Win
100%
100%
Set 5 Win
100%
0%
Data Point
Vit Kopriva
Rei Sakamoto
Match Wins
56%
60%
Match Wins (3 Sets)
57%
59%
Match Wins (5 Sets)
40%
67%
Wins in Straight Sets
35%
35%
Wins From Behind
18%
32%
Won At Least 1 Set
73%
69%
Set 1 Win
57%
44%
Set 2 Win
53%
60%
Set 3 Win
47%
76%
Set 4 Win
25%
100%
Set 5 Win
67%
0%
Aces - Over/Under, Match Total, Average (3 Set Matches)
2026 Calendar Year
Last 12 Months
Milestones
Over
Under
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Aces Per Match
3.60
6.75
10.35
Most Aces in a match
33%
69%
N/A
1+
87%
100%
100%
2+
80%
94%
97%
3+
67%
94%
97%
4+
47%
94%
90%
5+
40%
69%
81%
6+
7%
38%
67%
7+
7%
38%
64%
8+
7%
31%
61%
9+
0%
31%
55%
10+
0%
25%
48%
15+
0%
0%
17%
20+
0%
0%
7%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Over 0.5
87%
100%
100%
Over 1.5
80%
94%
97%
Over 2.5
67%
94%
97%
Over 3.5
47%
94%
90%
Over 4.5
40%
69%
81%
Over 5.5
27%
56%
67%
Over 6.5
7%
38%
64%
Over 7.5
7%
31%
61%
Over 8.5
0%
31%
55%
Over 9.5
0%
25%
48%
Over 10.5
0%
19%
42%
Over 11.5
0%
13%
36%
Over 12.5
0%
6%
36%
Over 13.5
0%
6%
29%
Over 14.5
0%
0%
17%
Over 15.5
0%
0%
13%
Over 16.5
0%
0%
10%
Over 17.5
0%
0%
7%
Over 18.5
0%
0%
7%
Over 19.5
0%
0%
7%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Under 0.5
13%
0%
0%
Under 1.5
20%
6%
4%
Under 2.5
33%
6%
4%
Under 3.5
53%
6%
10%
Under 4.5
60%
31%
20%
Under 5.5
73%
44%
33%
Under 6.5
93%
63%
36%
Under 7.5
93%
69%
39%
Under 8.5
100%
69%
46%
Under 9.5
100%
75%
53%
Under 10.5
100%
81%
59%
Under 11.5
100%
88%
65%
Under 12.5
100%
94%
65%
Under 13.5
100%
94%
71%
Under 14.5
100%
100%
84%
Milestones
Over
Under
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Aces Per Match
2.90
7.25
10.15
Most Aces in a match
35%
68%
N/A
1+
85%
100%
100%
2+
74%
93%
97%
3+
54%
88%
93%
4+
31%
81%
88%
5+
21%
75%
81%
6+
6%
56%
72%
7+
6%
56%
65%
8+
4%
44%
57%
9+
1%
39%
53%
10+
0%
27%
46%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Over 0.5
85%
100%
100%
Over 1.5
74%
93%
97%
Over 2.5
54%
88%
93%
Over 3.5
31%
81%
88%
Over 4.5
21%
75%
81%
Over 5.5
13%
64%
72%
Over 6.5
6%
56%
65%
Over 7.5
4%
44%
57%
Over 8.5
1%
39%
53%
Over 9.5
0%
27%
46%
Over 10.5
0%
19%
40%
Over 11.5
0%
17%
35%
Over 12.5
0%
12%
31%
Over 13.5
0%
8%
27%
Over 14.5
0%
2%
21%
Over 15.5
0%
0%
16%
Over 16.5
0%
0%
15%
Over 17.5
0%
0%
11%
Over 18.5
0%
0%
10%
Over 19.5
0%
0%
8%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Under 0.5
15%
0%
0%
Under 1.5
26%
7%
3%
Under 2.5
46%
12%
8%
Under 3.5
69%
19%
13%
Under 4.5
79%
25%
20%
Under 5.5
87%
36%
29%
Under 6.5
94%
44%
35%
Under 7.5
96%
56%
43%
Under 8.5
99%
61%
48%
Under 9.5
100%
73%
54%
Under 10.5
100%
81%
60%
Under 11.5
100%
83%
66%
Under 12.5
100%
88%
69%
Under 13.5
100%
92%
73%
Under 14.5
100%
98%
80%
Match Total Games - Over/Under
2026 Calendar Year
Last 12 Months
Total Games In A Set
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
Rei Sakamoto
Average
Average Games in a Set
9.89
9.59
9.74
Over 6.5
100%
94%
97%
Over 7.5
100%
75%
88%
Over 8.5
87%
56%
72%
Over 9.5
67%
44%
56%
Over 10.5
27%
25%
26%
Over 11.5
27%
25%
26%
Over 12.5
20%
19%
20%
Data Point
Vit Kopriva
Rei Sakamoto
Average
Over 12.5
100%
100%
100%
Over 13.5
100%
94%
97%
Over 14.5
100%
94%
97%
Over 15.5
100%
88%
94%
Over 16.5
93%
75%
84%
Over 17.5
93%
69%
81%
Over 18.5
87%
69%
78%
Over 19.5
67%
50%
59%
Over 20.5
60%
44%
52%
Over 21.5
53%
25%
39%
Over 22.5
53%
25%
39%
Over 23.5
40%
13%
27%
Over 24.5
40%
6%
23%
Over 25.5
33%
6%
20%
Over 26.5
20%
6%
13%
Over 27.5
20%
6%
13%
Over 28.5
20%
6%
13%
Over 29.5
13%
6%
10%
Data Point
Vit Kopriva
Rei Sakamoto
Average
Over 18.5
100%
100%
100%
Over 19.5
100%
100%
100%
Over 20.5
100%
100%
100%
Over 21.5
100%
100%
100%
Over 22.5
100%
100%
100%
Over 23.5
100%
100%
100%
Over 24.5
100%
100%
100%
Over 25.5
100%
100%
100%
Over 26.5
100%
100%
100%
Over 27.5
100%
100%
100%
Over 28.5
100%
100%
100%
Over 29.5
100%
100%
100%
Over 30.5
50%
100%
75%
Over 31.5
50%
100%
75%
Over 32.5
50%
100%
75%
Over 33.5
50%
100%
75%
Over 34.5
50%
100%
75%
Over 35.5
50%
100%
75%
Over 36.5
50%
100%
75%
Over 37.5
50%
100%
75%
Total Games In A Set
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
Rei Sakamoto
Average
Average Games in a Set
9.31
9.69
9.5
Over 6.5
100%
97%
99%
Over 7.5
91%
78%
85%
Over 8.5
69%
66%
68%
Over 9.5
41%
47%
44%
Over 10.5
16%
25%
21%
Over 11.5
16%
25%
21%
Over 12.5
7%
20%
14%
Data Point
Vit Kopriva
Rei Sakamoto
Average
Over 12.5
100%
100%
100%
Over 13.5
100%
97%
99%
Over 14.5
100%
97%
99%
Over 15.5
97%
92%
95%
Over 16.5
91%
85%
88%
Over 17.5
85%
78%
82%
Over 18.5
72%
73%
73%
Over 19.5
56%
61%
59%
Over 20.5
51%
56%
54%
Over 21.5
44%
51%
48%
Over 22.5
40%
46%
43%
Over 23.5
37%
36%
37%
Over 24.5
35%
31%
33%
Over 25.5
31%
24%
28%
Over 26.5
26%
22%
24%
Over 27.5
26%
22%
24%
Over 28.5
19%
17%
18%
Over 29.5
13%
15%
14%
Data Point
Vit Kopriva
Rei Sakamoto
Average
Over 18.5
100%
100%
100%
Over 19.5
100%
100%
100%
Over 20.5
100%
100%
100%
Over 21.5
100%
100%
100%
Over 22.5
100%
100%
100%
Over 23.5
100%
100%
100%
Over 24.5
100%
100%
100%
Over 25.5
100%
67%
84%
Over 26.5
100%
67%
84%
Over 27.5
100%
67%
84%
Over 28.5
100%
67%
84%
Over 29.5
100%
67%
84%
Over 30.5
80%
67%
74%
Over 31.5
80%
33%
57%
Over 32.5
80%
33%
57%
Over 33.5
80%
33%
57%
Over 34.5
80%
33%
57%
Over 35.5
80%
33%
57%
Over 36.5
80%
33%
57%
Over 37.5
80%
33%
57%
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
Vit Kopriva
Rei Sakamoto
Match Total
Breaks Per Match
2.43
1.88
4.31
Over 0.5
93%
75%
97%
Over 1.5
79%
69%
87%
Over 2.5
57%
44%
60%
Over 3.5
21%
38%
57%
Over 4.5
14%
25%
44%
Over 5.5
0%
6%
38%
Over 6.5
0%
0%
28%
Over 7.5
0%
0%
15%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Breaks Per Match
4
4
8
Over 0.5
100%
100%
100%
Over 1.5
50%
100%
100%
Over 2.5
50%
100%
100%
Over 3.5
50%
0%
100%
Over 4.5
50%
0%
100%
Over 5.5
50%
0%
75%
Over 6.5
50%
0%
75%
Over 7.5
0%
0%
75%
Over 8.5
0%
0%
25%
Over 9.5
0%
0%
25%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Average Break-Points Converted (Set 1)
1.18
0.88
2.06
Average Break-Points Converted (Set 2)
0.89
0.84
1.73
Average Break-Points Converted (Set 3)
1
1.25
2.25
will Break Serve %
52%
32%
N/A
will not Break Serve %
32%
28%
N/A
Over 0.5
93%
56%
94%
Over 1.5
43%
31%
53%
Over 2.5
7%
13%
31%
Over 3.5
0%
0%
21%
Over 4.5
0%
0%
7%
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
Vit Kopriva
Rei Sakamoto
Match Total
Breaks Per Match
3.13
2.18
5.31
Over 0.5
91%
80%
99%
Over 1.5
81%
64%
95%
Over 2.5
66%
47%
85%
Over 3.5
40%
27%
73%
Over 4.5
28%
14%
58%
Over 5.5
10%
3%
41%
Over 6.5
3%
0%
32%
Over 7.5
1%
0%
20%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Breaks Per Match
3.7
2.33
6.03
Over 0.5
100%
100%
100%
Over 1.5
80%
67%
84%
Over 2.5
40%
67%
84%
Over 3.5
40%
33%
84%
Over 4.5
40%
0%
84%
Over 5.5
40%
0%
47%
Over 6.5
40%
0%
47%
Over 7.5
0%
0%
37%
Over 8.5
0%
0%
20%
Over 9.5
0%
0%
10%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Average Break-Points Converted (Set 1)
1.32
0.9
2.22
Average Break-Points Converted (Set 2)
1.33
0.96
2.29
Average Break-Points Converted (Set 3)
1.28
1
2.28
will Break Serve %
49%
28%
N/A
will not Break Serve %
43%
37%
N/A
Over 0.5
84%
51%
96%
Over 1.5
42%
25%
65%
Over 2.5
15%
3%
34%
Over 3.5
3%
0%
20%
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
Vit Kopriva
Rei Sakamoto
Match Total
Double Faults Per Match
4.13
1.25
5.38
Over 0.5 (1+)
93%
69%
97%
Over 1.5 (2+)
80%
31%
91%
Over 2.5 (3+)
73%
19%
75%
Over 3.5 (4+)
60%
6%
72%
Over 4.5 (5+)
27%
0%
52%
Over 5.5 (6+)
20%
0%
40%
Over 6.5 (7+)
20%
0%
27%
Over 7.5 (8+)
13%
0%
17%
Over 8.5 (9+)
7%
0%
14%
Over 9.5 (10+)
7%
0%
10%
Over 10.5 (11+)
7%
0%
7%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Double Faults Per Match
3.5
4
7.5
Over 0.5 (1+)
100%
100%
100%
Over 1.5 (2+)
100%
100%
100%
Over 2.5 (3+)
50%
100%
100%
Over 3.5 (4+)
50%
100%
75%
Over 4.5 (5+)
50%
0%
75%
Over 5.5 (6+)
0%
0%
25%
Over 6.5 (7+)
0%
0%
25%
Over 7.5 (8+)
0%
0%
25%
Over 8.5 (9+)
0%
0%
25%
Over 9.5 (10+)
0%
0%
25%
Over 10.5 (11+)
0%
0%
25%
Over 11.5 (12+)
0%
0%
N/A
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Double Faults Per Match
3.38
2.15
5.53
Over 0.5 (1+)
91%
83%
99%
Over 1.5 (2+)
76%
59%
90%
Over 2.5 (3+)
63%
42%
80%
Over 3.5 (4+)
44%
15%
73%
Over 4.5 (5+)
26%
7%
59%
Over 5.5 (6+)
13%
3%
45%
Over 6.5 (7+)
9%
2%
34%
Over 7.5 (8+)
7%
2%
20%
Over 8.5 (9+)
3%
2%
16%
Over 9.5 (10+)
1%
0%
10%
Over 10.5 (11+)
1%
0%
8%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Double Faults Per Match
4.8
1.33
6.13
Over 0.5 (1+)
100%
33%
84%
Over 1.5 (2+)
80%
33%
67%
Over 2.5 (3+)
60%
33%
67%
Over 3.5 (4+)
60%
33%
57%
Over 4.5 (5+)
60%
0%
57%
Over 5.5 (6+)
40%
0%
30%
Over 6.5 (7+)
20%
0%
30%
Over 7.5 (8+)
20%
0%
30%
Over 8.5 (9+)
20%
0%
30%
Over 9.5 (10+)
20%
0%
30%
Over 10.5 (11+)
0%
0%
20%
Tie Breaks - Over/Under
2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
(Match)
(Match)
Rei Sakamoto
(Match)
(Match)
Average
Tie Breaks Per Match
0.53
0.31
0.42
Over 0.5
40%
31%
36%
Over 1.5
13%
0%
7%
Over 2.5
0%
0%
0%
Under 0.5
60%
69%
36%
Under 1.5
87%
100%
7%
Under 2.5
100%
100%
0%
Data Point
Vit Kopriva (Match)
Rei Sakamoto (Match)
Average
Tie Breaks Per Match
0.5
1
0.75
Over 0.5
50%
100%
75%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
50%
0%
25%
Under 1.5
100%
100%
100%
Under 2.5
100%
100%
100%
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
(Match)
(Match)
Rei Sakamoto
(Match)
(Match)
Average
Tie Breaks Per Match
0.21
0.41
0.31
Over 0.5
18%
36%
27%
Over 1.5
3%
5%
4%
Over 2.5
0%
0%
0%
Under 0.5
18%
36%
27%
Under 1.5
3%
5%
4%
Under 2.5
0%
0%
0%
Data Point
Vit Kopriva (Match)
Rei Sakamoto (Match)
Average
Tie Breaks Per Match
0.6
1
0.8
Over 0.5
60%
100%
80%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
40%
0%
20%
Under 1.5
100%
100%
100%
Under 2.5
100%
100%
100%
Net Points Won - Over/Under
2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
Rei Sakamoto
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
Vit Kopriva
Rei Sakamoto
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
Vit Kopriva
Rei Sakamoto
Match Total
Net Points Won Per Match
6.17
6.63
12.8
Over 4.5 (5+)
52%
84%
68%
Over 5.5 (6+)
43%
79%
61%
Over 6.5 (7+)
39%
68%
54%
Over 7.5 (8+)
26%
58%
42%
Over 8.5 (9+)
17%
47%
32%
Over 9.5 (10+)
9%
42%
26%
Over 10.5 (11+)
9%
32%
21%
Over 11.5 (12+)
9%
26%
18%
Over 14.5 (15+)
4%
11%
8%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Net Points won Per Match
25
5.5
30.5
Over 4.5 (5+)
100%
100%
100%
Over 5.5 (6+)
100%
100%
100%
Over 6.5 (7+)
100%
50%
75%
Over 7.5 (8+)
100%
50%
75%
Over 8.5 (9+)
100%
0%
50%
Over 9.5 (10+)
100%
0%
50%
Over 10.5 (11+)
100%
0%
50%
Over 11.5 (12+)
67%
0%
34%
Over 14.5 (15+)
67%
0%
34%
Over 19.5 (20+)
33%
0%
17%
Over 22.5 (23+)
N/A
N/A
17%
Head-to-Head (Hard Courts)
Performance
Profile
Data Point
Vit Kopriva
Rei Sakamoto
Wins
H2H
H2H
2(100.0%)
0(0.0%)
Sets Won
H2H
H2H
4(100.0%)
0(0.0%)
Win Percentage
2026 Calendar Year
2026 Calendar Year
57.1%4 / 7 Matches
68.8%11 / 16 Matches
Win Percentage
Last 12 Months
Last 12 Months
43.5%10 / 23 Matches
60.4%32 / 53 Matches
Data Point
Vit Kopriva
Rei Sakamoto
Main Hand
Right-handed
Right-handed
Age
28
19
Birthday
June 15, 1997
June 24, 2006
Height
1.78m
1.93m
Weight
69kg
80kg
Win Percentage (Hard Courts)
2026 Calendar Year
Last 12 Months
Data Point
Vit Kopriva
Rei Sakamoto
Match Wins
57%
69%
Match Wins (3 Sets)
57%
69%
Match Wins (5 Sets)
50%
0%
Wins in Straight Sets
43%
56%
Wins From Behind
0%
29%
Won At Least 1 Set
71%
69%
Set 1 Win
57%
56%
Set 2 Win
57%
69%
Set 3 Win
50%
100%
Set 4 Win
100%
100%
Set 5 Win
100%
0%
Data Point
Vit Kopriva
Rei Sakamoto
Match Wins
43%
60%
Match Wins (3 Sets)
43%
60%
Match Wins (5 Sets)
50%
67%
Wins in Straight Sets
35%
38%
Wins From Behind
7%
32%
Won At Least 1 Set
61%
70%
Set 1 Win
48%
45%
Set 2 Win
48%
62%
Set 3 Win
29%
71%
Set 4 Win
100%
100%
Set 5 Win
67%
0%
Aces (Hard Courts)
2026 Calendar Year
Last 12 Months
Milestones
Over
Under
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Aces Per Match
4.00
6.75
10.75
Most Aces in a match
29%
69%
N/A
1+
86%
100%
100%
2+
86%
94%
100%
3+
86%
94%
100%
4+
57%
94%
93%
5+
57%
69%
83%
6+
0%
38%
69%
7+
0%
38%
66%
8+
0%
31%
63%
9+
0%
31%
60%
10+
0%
25%
60%
15+
0%
0%
21%
20+
0%
0%
10%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Over 0.5
86%
100%
100%
Over 1.5
86%
94%
100%
Over 2.5
86%
94%
100%
Over 3.5
57%
94%
93%
Over 4.5
57%
69%
83%
Over 5.5
29%
56%
69%
Over 6.5
0%
38%
66%
Over 7.5
0%
31%
63%
Over 8.5
0%
31%
60%
Over 9.5
0%
25%
60%
Over 10.5
0%
19%
50%
Over 11.5
0%
13%
44%
Over 12.5
0%
6%
44%
Over 13.5
0%
6%
37%
Over 14.5
0%
0%
21%
Over 15.5
0%
0%
18%
Over 16.5
0%
0%
10%
Over 17.5
0%
0%
10%
Over 18.5
0%
0%
10%
Over 19.5
0%
0%
10%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Under 0.5
14%
0%
0%
Under 1.5
14%
6%
0%
Under 2.5
14%
6%
0%
Under 3.5
43%
6%
7%
Under 4.5
43%
31%
18%
Under 5.5
71%
44%
31%
Under 6.5
100%
63%
34%
Under 7.5
100%
69%
37%
Under 8.5
100%
69%
41%
Under 9.5
100%
75%
41%
Under 10.5
100%
81%
51%
Under 11.5
100%
88%
57%
Under 12.5
100%
94%
57%
Under 13.5
100%
94%
63%
Under 14.5
100%
100%
80%
Milestones
Over
Under
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Aces Per Match
3.17
7.23
10.40
Most Aces in a match
35%
68%
N/A
1+
87%
100%
100%
2+
70%
92%
98%
3+
61%
87%
96%
4+
43%
81%
94%
5+
30%
74%
90%
6+
4%
57%
81%
7+
4%
57%
77%
8+
4%
45%
68%
9+
0%
40%
68%
10+
0%
26%
64%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Over 0.5
87%
100%
100%
Over 1.5
70%
92%
98%
Over 2.5
61%
87%
96%
Over 3.5
43%
81%
94%
Over 4.5
30%
74%
90%
Over 5.5
17%
64%
81%
Over 6.5
4%
57%
77%
Over 7.5
4%
45%
68%
Over 8.5
0%
40%
68%
Over 9.5
0%
26%
64%
Over 10.5
0%
19%
53%
Over 11.5
0%
17%
44%
Over 12.5
0%
11%
39%
Over 13.5
0%
8%
35%
Over 14.5
0%
2%
26%
Over 15.5
0%
0%
20%
Over 16.5
0%
0%
18%
Over 17.5
0%
0%
16%
Over 18.5
0%
0%
15%
Over 19.5
0%
0%
11%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Under 0.5
13%
0%
0%
Under 1.5
30%
8%
2%
Under 2.5
39%
13%
5%
Under 3.5
57%
19%
7%
Under 4.5
70%
26%
11%
Under 5.5
83%
36%
20%
Under 6.5
96%
43%
24%
Under 7.5
96%
55%
32%
Under 8.5
100%
60%
33%
Under 9.5
100%
74%
37%
Under 10.5
100%
81%
48%
Under 11.5
100%
83%
56%
Under 12.5
100%
89%
62%
Under 13.5
100%
92%
65%
Under 14.5
100%
98%
74%
Match Total Games (Hard Courts)
2026 Calendar Year
Last 12 Months
Total Games In A Set
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
Rei Sakamoto
Average
Average Games in a Set
9.89
9.59
9.74
Over 6.5
100%
94%
97%
Over 7.5
100%
75%
88%
Over 8.5
87%
56%
72%
Over 9.5
67%
44%
56%
Over 10.5
27%
25%
26%
Over 11.5
27%
25%
26%
Over 12.5
20%
19%
20%
Data Point
Vit Kopriva
Rei Sakamoto
Average
Over 12.5
100%
100%
100%
Over 13.5
100%
94%
97%
Over 14.5
100%
94%
97%
Over 15.5
100%
88%
94%
Over 16.5
93%
75%
84%
Over 17.5
93%
69%
81%
Over 18.5
87%
69%
78%
Over 19.5
67%
50%
59%
Over 20.5
60%
44%
52%
Over 21.5
53%
25%
39%
Over 22.5
53%
25%
39%
Over 23.5
40%
13%
27%
Over 24.5
40%
6%
23%
Over 25.5
33%
6%
20%
Over 26.5
20%
6%
13%
Over 27.5
20%
6%
13%
Over 28.5
20%
6%
13%
Over 29.5
13%
6%
10%
Data Point
Vit Kopriva
Rei Sakamoto
Average
Over 18.5
100%
100%
100%
Over 19.5
100%
100%
100%
Over 20.5
100%
100%
100%
Over 21.5
100%
100%
100%
Over 22.5
100%
100%
100%
Over 23.5
100%
100%
100%
Over 24.5
100%
100%
100%
Over 25.5
100%
100%
100%
Over 26.5
100%
100%
100%
Over 27.5
100%
100%
100%
Over 28.5
100%
100%
100%
Over 29.5
100%
100%
100%
Over 30.5
50%
100%
75%
Over 31.5
50%
100%
75%
Over 32.5
50%
100%
75%
Over 33.5
50%
100%
75%
Over 34.5
50%
100%
75%
Over 35.5
50%
100%
75%
Over 36.5
50%
100%
75%
Over 37.5
50%
100%
75%
Total Games In A Set
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
Rei Sakamoto
Average
Average Games in a Set
9.31
9.69
9.5
Over 6.5
100%
97%
99%
Over 7.5
91%
78%
85%
Over 8.5
69%
66%
68%
Over 9.5
41%
47%
44%
Over 10.5
16%
25%
21%
Over 11.5
16%
25%
21%
Over 12.5
7%
20%
14%
Data Point
Vit Kopriva
Rei Sakamoto
Average
Over 12.5
100%
100%
100%
Over 13.5
100%
97%
99%
Over 14.5
100%
97%
99%
Over 15.5
97%
92%
95%
Over 16.5
91%
85%
88%
Over 17.5
85%
78%
82%
Over 18.5
72%
73%
73%
Over 19.5
56%
61%
59%
Over 20.5
51%
56%
54%
Over 21.5
44%
51%
48%
Over 22.5
40%
46%
43%
Over 23.5
37%
36%
37%
Over 24.5
35%
31%
33%
Over 25.5
31%
24%
28%
Over 26.5
26%
22%
24%
Over 27.5
26%
22%
24%
Over 28.5
19%
17%
18%
Over 29.5
13%
15%
14%
Data Point
Vit Kopriva
Rei Sakamoto
Average
Over 18.5
100%
100%
100%
Over 19.5
100%
100%
100%
Over 20.5
100%
100%
100%
Over 21.5
100%
100%
100%
Over 22.5
100%
100%
100%
Over 23.5
100%
100%
100%
Over 24.5
100%
100%
100%
Over 25.5
100%
67%
84%
Over 26.5
100%
67%
84%
Over 27.5
100%
67%
84%
Over 28.5
100%
67%
84%
Over 29.5
100%
67%
84%
Over 30.5
80%
67%
74%
Over 31.5
80%
33%
57%
Over 32.5
80%
33%
57%
Over 33.5
80%
33%
57%
Over 34.5
80%
33%
57%
Over 35.5
80%
33%
57%
Over 36.5
80%
33%
57%
Over 37.5
80%
33%
57%
Break Points Won (Hard Courts)
2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Breaks Per Match
2.5
1.88
4.38
Over 0.5
83%
75%
92%
Over 1.5
67%
69%
81%
Over 2.5
50%
44%
62%
Over 3.5
17%
38%
59%
Over 4.5
17%
25%
53%
Over 5.5
0%
6%
46%
Over 6.5
0%
0%
32%
Over 7.5
0%
0%
9%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Breaks Per Match
4
4
8
Over 0.5
100%
100%
100%
Over 1.5
50%
100%
100%
Over 2.5
50%
100%
100%
Over 3.5
50%
0%
100%
Over 4.5
50%
0%
100%
Over 5.5
50%
0%
75%
Over 6.5
50%
0%
75%
Over 7.5
0%
0%
75%
Over 8.5
0%
0%
25%
Over 9.5
0%
0%
25%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Average Break-Points Converted (Set 1)
1.25
0.88
2.13
Average Break-Points Converted (Set 2)
0.92
0.84
1.76
Average Break-Points Converted (Set 3)
1
1.25
2.25
will Break Serve %
39%
32%
N/A
will not Break Serve %
42%
28%
N/A
Over 0.5
83%
56%
89%
Over 1.5
33%
31%
53%
Over 2.5
0%
13%
35%
Over 3.5
0%
0%
28%
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
Vit Kopriva
Rei Sakamoto
Match Total
Breaks Per Match
2.75
2.19
4.94
Over 0.5
86%
81%
97%
Over 1.5
68%
68%
93%
Over 2.5
50%
49%
85%
Over 3.5
18%
28%
73%
Over 4.5
9%
15%
59%
Over 5.5
0%
4%
41%
Over 6.5
0%
0%
26%
Over 7.5
0%
0%
12%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Breaks Per Match
4
2.33
6.33
Over 0.5
100%
100%
100%
Over 1.5
50%
67%
84%
Over 2.5
50%
67%
84%
Over 3.5
50%
33%
84%
Over 4.5
50%
0%
84%
Over 5.5
50%
0%
47%
Over 6.5
50%
0%
47%
Over 7.5
0%
0%
37%
Over 8.5
0%
0%
20%
Over 9.5
0%
0%
10%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Average Break-Points Converted (Set 1)
1.23
0.89
2.22
Average Break-Points Converted (Set 2)
1.23
0.99
2.29
Average Break-Points Converted (Set 3)
0.93
0.97
2.28
will Break Serve %
37%
31%
N/A
will not Break Serve %
51%
37%
N/A
Over 0.5
73%
55%
96%
Over 1.5
32%
28%
65%
Over 2.5
5%
4%
34%
Over 3.5
0%
0%
20%
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
Vit Kopriva
Rei Sakamoto
Match Total
Double Faults Per Match
5.14
1.25
6.39
Over 0.5 (1+)
100%
69%
100%
Over 1.5 (2+)
86%
31%
90%
Over 2.5 (3+)
86%
19%
78%
Over 3.5 (4+)
71%
6%
75%
Over 4.5 (5+)
29%
0%
59%
Over 5.5 (6+)
29%
0%
45%
Over 6.5 (7+)
29%
0%
28%
Over 7.5 (8+)
29%
0%
15%
Over 8.5 (9+)
14%
0%
15%
Over 9.5 (10+)
14%
0%
15%
Over 10.5 (11+)
14%
0%
7%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Double Faults Per Match
3.5
4
7.5
Over 0.5 (1+)
100%
100%
100%
Over 1.5 (2+)
100%
100%
100%
Over 2.5 (3+)
50%
100%
100%
Over 3.5 (4+)
50%
100%
75%
Over 4.5 (5+)
50%
0%
75%
Over 5.5 (6+)
0%
0%
25%
Over 6.5 (7+)
0%
0%
25%
Over 7.5 (8+)
0%
0%
25%
Over 8.5 (9+)
0%
0%
25%
Over 9.5 (10+)
0%
0%
25%
Over 10.5 (11+)
0%
0%
25%
Over 11.5 (12+)
0%
0%
N/A
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Double Faults Per Match
4.3
2.19
6.49
Over 0.5 (1+)
91%
83%
100%
Over 1.5 (2+)
87%
60%
93%
Over 2.5 (3+)
70%
43%
84%
Over 3.5 (4+)
57%
15%
78%
Over 4.5 (5+)
30%
8%
66%
Over 5.5 (6+)
30%
4%
50%
Over 6.5 (7+)
22%
2%
35%
Over 7.5 (8+)
22%
2%
22%
Over 8.5 (9+)
9%
2%
20%
Over 9.5 (10+)
4%
0%
13%
Over 10.5 (11+)
4%
0%
11%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Double Faults Per Match
3.5
1.33
4.83
Over 0.5 (1+)
100%
33%
84%
Over 1.5 (2+)
100%
33%
67%
Over 2.5 (3+)
50%
33%
67%
Over 3.5 (4+)
50%
33%
42%
Over 4.5 (5+)
50%
0%
42%
Over 5.5 (6+)
0%
0%
25%
Over 6.5 (7+)
0%
0%
25%
Over 7.5 (8+)
0%
0%
25%
Over 8.5 (9+)
0%
0%
25%
Over 9.5 (10+)
0%
0%
25%
Over 10.5 (11+)
0%
0%
25%
Tie Breaks (Hard Courts)
2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
(Match)
(Match)
Rei Sakamoto
(Match)
(Match)
Average
Tie Breaks Per Match
0.71
0.31
0.42
Over 0.5
43%
13%
28%
Over 1.5
14%
0%
7%
Over 2.5
0%
0%
0%
Under 0.5
57%
88%
73%
Under 1.5
86%
100%
93%
Under 2.5
100%
100%
100%
Data Point
Vit Kopriva (Match)
Rei Sakamoto (Match)
Average
Tie Breaks Per Match
0.5
1
0.75
Over 0.5
50%
100%
75%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
50%
0%
25%
Under 1.5
100%
100%
100%
Under 2.5
100%
100%
100%
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
(Match)
(Match)
Rei Sakamoto
(Match)
(Match)
Average
Tie Breaks Per Match
0.26
0.42
0.31
Over 0.5
13%
21%
17%
Over 1.5
4%
2%
3%
Over 2.5
0%
0%
0%
Under 0.5
87%
79%
83%
Under 1.5
96%
98%
97%
Under 2.5
100%
100%
100%
Data Point
Vit Kopriva (Match)
Rei Sakamoto (Match)
Average
Tie Breaks Per Match
0.6
1
0.8
Over 0.5
60%
100%
80%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
40%
0%
20%
Under 1.5
100%
100%
100%
Under 2.5
100%
100%
100%
Net Points Won (Hard Courts)
2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
Rei Sakamoto
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
Vit Kopriva
Rei Sakamoto
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
Vit Kopriva
Rei Sakamoto
Match Total
Net Points Won Per Match
4.79
6.75
11.54
Over 4.5 (5+)
29%
94%
62%
Over 5.5 (6+)
14%
88%
51%
Over 6.5 (7+)
0%
75%
38%
Over 7.5 (8+)
0%
63%
32%
Over 8.5 (9+)
0%
50%
25%
Over 9.5 (10+)
0%
44%
22%
Over 10.5 (11+)
0%
31%
16%
Over 11.5 (12+)
0%
25%
13%
Over 14.5 (15+)
0%
6%
3%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Net Points won Per Match
N/A
5.5
4.5
Over 4.5 (5+)
N/A
100%
50%
Over 5.5 (6+)
N/A
100%
50%
Over 6.5 (7+)
N/A
50%
25%
Over 7.5 (8+)
N/A
50%
25%
Over 8.5 (9+)
N/A
0%
N/A
Over 9.5 (10+)
N/A
0%
N/A
Over 10.5 (11+)
N/A
0%
N/A
Over 11.5 (12+)
N/A
0%
N/A
Over 14.5 (15+)
N/A
0%
N/A
Over 19.5 (20+)
N/A
0%
N/A
Over 22.5 (23+)
N/A
0%
N/A
Head-to-Head (Clay Courts)
Performance
Profile
Data Point
Vit Kopriva
Rei Sakamoto
Wins
H2H
H2H
0(0%)
0(0%)
Sets Won
H2H
H2H
0(0%)
0(0%)
Win Percentage
2026 Calendar Year
2026 Calendar Year
62.5%5 / 8 Matches
N/A0 / 0 Matches
Win Percentage
Last 12 Months
Last 12 Months
65.1%28 / 43 Matches
50.0%3 / 6 Matches
Data Point
Vit Kopriva
Rei Sakamoto
Main Hand
Right-handed
Right-handed
Age
28
19
Birthday
June 15, 1997
June 24, 2006
Height
1.78m
1.93m
Weight
69kg
80kg
Win Percentage (Clay Courts)
2026 Calendar Year
Last 12 Months
Data Point
Vit Kopriva
Rei Sakamoto
Match Wins
63%
N/A
Match Wins (3 Sets)
63%
N/A
Match Wins (5 Sets)
N/A
N/A
Wins in Straight Sets
50%
N/A
Wins From Behind
0%
N/A
Won At Least 1 Set
88%
N/A
Set 1 Win
88%
N/A
Set 2 Win
50%
N/A
Set 3 Win
33%
N/A
Set 4 Win
N/A
N/A
Set 5 Win
N/A
N/A
Data Point
Vit Kopriva
Rei Sakamoto
Match Wins
65%
50%
Match Wins (3 Sets)
65%
50%
Match Wins (5 Sets)
50%
N/A
Wins in Straight Sets
37%
17%
Wins From Behind
25%
40%
Won At Least 1 Set
77%
50%
Set 1 Win
60%
17%
Set 2 Win
53%
50%
Set 3 Win
71%
100%
Set 4 Win
0%
N/A
Set 5 Win
67%
0%
Aces (Clay Courts)
2026 Calendar Year
Last 12 Months
Milestones
Over
Under
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Aces Per Match
3.25
N/A
N/A
Most Aces in a match
38%
N/A
N/A
1+
88%
N/A
N/A
2+
75%
N/A
N/A
3+
50%
N/A
N/A
4+
38%
N/A
N/A
5+
25%
N/A
N/A
6+
13%
N/A
N/A
7+
13%
N/A
N/A
8+
13%
N/A
N/A
9+
0%
N/A
N/A
10+
0%
N/A
N/A
15+
0%
N/A
N/A
20+
0%
N/A
N/A
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Over 0.5
88%
N/A
N/A
Over 1.5
75%
N/A
N/A
Over 2.5
50%
N/A
N/A
Over 3.5
38%
N/A
N/A
Over 4.5
25%
N/A
N/A
Over 5.5
25%
N/A
N/A
Over 6.5
13%
N/A
N/A
Over 7.5
13%
N/A
N/A
Over 8.5
0%
N/A
N/A
Over 9.5
0%
N/A
N/A
Over 10.5
0%
N/A
N/A
Over 11.5
0%
N/A
N/A
Over 12.5
0%
N/A
N/A
Over 13.5
0%
N/A
N/A
Over 14.5
0%
N/A
N/A
Over 15.5
0%
N/A
N/A
Over 16.5
0%
N/A
N/A
Over 17.5
0%
N/A
N/A
Over 18.5
0%
N/A
N/A
Over 19.5
0%
N/A
N/A
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Under 0.5
13%
N/A
N/A
Under 1.5
25%
N/A
6%
Under 2.5
50%
N/A
6%
Under 3.5
63%
N/A
12%
Under 4.5
75%
N/A
19%
Under 5.5
75%
N/A
25%
Under 6.5
88%
N/A
25%
Under 7.5
88%
N/A
25%
Under 8.5
100%
N/A
31%
Under 9.5
100%
N/A
44%
Under 10.5
100%
N/A
44%
Under 11.5
100%
N/A
44%
Under 12.5
100%
N/A
44%
Under 13.5
100%
N/A
44%
Under 14.5
100%
N/A
44%
Milestones
Over
Under
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Aces Per Match
2.72
7.5
10.22
Most Aces in a match
35%
68%
N/A
1+
84%
100%
100%
2+
77%
100%
97%
3+
51%
100%
91%
4+
23%
83%
84%
5+
14%
83%
70%
6+
7%
50%
65%
7+
7%
50%
58%
8+
5%
33%
39%
9+
2%
33%
33%
10+
0%
33%
21%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Over 0.5
84%
100%
100%
Over 1.5
77%
100%
97%
Over 2.5
51%
100%
91%
Over 3.5
23%
83%
84%
Over 4.5
14%
83%
70%
Over 5.5
9%
67%
65%
Over 6.5
7%
50%
58%
Over 7.5
5%
33%
39%
Over 8.5
2%
33%
33%
Over 9.5
0%
33%
21%
Over 10.5
0%
17%
20%
Over 11.5
0%
17%
20%
Over 12.5
0%
17%
20%
Over 13.5
0%
17%
19%
Over 14.5
0%
0%
11%
Over 15.5
0%
0%
11%
Over 16.5
0%
0%
3%
Over 17.5
0%
0%
0%
Over 18.5
0%
0%
0%
Over 19.5
0%
0%
0%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Under 0.5
16%
0%
0%
Under 1.5
23%
0%
4%
Under 2.5
49%
0%
10%
Under 3.5
77%
17%
17%
Under 4.5
86%
17%
31%
Under 5.5
91%
33%
35%
Under 6.5
93%
50%
42%
Under 7.5
95%
67%
61%
Under 8.5
98%
67%
67%
Under 9.5
100%
67%
79%
Under 10.5
100%
83%
80%
Under 11.5
100%
83%
80%
Under 12.5
100%
83%
80%
Under 13.5
100%
83%
81%
Under 14.5
100%
100%
89%
Match Total Games (Clay Courts)
2026 Calendar Year
Last 12 Months
Total Games In A Set
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
Rei Sakamoto
Average
Average Games in a Set
9.89
9.59
9.74
Over 6.5
100%
94%
97%
Over 7.5
100%
75%
88%
Over 8.5
87%
56%
72%
Over 9.5
67%
44%
56%
Over 10.5
27%
25%
26%
Over 11.5
27%
25%
26%
Over 12.5
20%
19%
20%
Data Point
Vit Kopriva
Rei Sakamoto
Average
Over 12.5
100%
100%
100%
Over 13.5
100%
94%
97%
Over 14.5
100%
94%
97%
Over 15.5
100%
88%
94%
Over 16.5
93%
75%
84%
Over 17.5
93%
69%
81%
Over 18.5
87%
69%
78%
Over 19.5
67%
50%
59%
Over 20.5
60%
44%
52%
Over 21.5
53%
25%
39%
Over 22.5
53%
25%
39%
Over 23.5
40%
13%
27%
Over 24.5
40%
6%
23%
Over 25.5
33%
6%
20%
Over 26.5
20%
6%
13%
Over 27.5
20%
6%
13%
Over 28.5
20%
6%
13%
Over 29.5
13%
6%
10%
Data Point
Vit Kopriva
Rei Sakamoto
Average
Over 18.5
100%
100%
100%
Over 19.5
100%
100%
100%
Over 20.5
100%
100%
100%
Over 21.5
100%
100%
100%
Over 22.5
100%
100%
100%
Over 23.5
100%
100%
100%
Over 24.5
100%
100%
100%
Over 25.5
100%
100%
100%
Over 26.5
100%
100%
100%
Over 27.5
100%
100%
100%
Over 28.5
100%
100%
100%
Over 29.5
100%
100%
100%
Over 30.5
50%
100%
75%
Over 31.5
50%
100%
75%
Over 32.5
50%
100%
75%
Over 33.5
50%
100%
75%
Over 34.5
50%
100%
75%
Over 35.5
50%
100%
75%
Over 36.5
50%
100%
75%
Over 37.5
50%
100%
75%
Total Games In A Set
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
Rei Sakamoto
Average
Average Games in a Set
9.31
9.69
9.5
Over 6.5
100%
97%
99%
Over 7.5
91%
78%
85%
Over 8.5
69%
66%
68%
Over 9.5
41%
47%
44%
Over 10.5
16%
25%
21%
Over 11.5
16%
25%
21%
Over 12.5
7%
20%
14%
Data Point
Vit Kopriva
Rei Sakamoto
Average
Over 12.5
100%
100%
100%
Over 13.5
100%
97%
99%
Over 14.5
100%
97%
99%
Over 15.5
97%
92%
95%
Over 16.5
91%
85%
88%
Over 17.5
85%
78%
82%
Over 18.5
72%
73%
73%
Over 19.5
56%
61%
59%
Over 20.5
51%
56%
54%
Over 21.5
44%
51%
48%
Over 22.5
40%
46%
43%
Over 23.5
37%
36%
37%
Over 24.5
35%
31%
33%
Over 25.5
31%
24%
28%
Over 26.5
26%
22%
24%
Over 27.5
26%
22%
24%
Over 28.5
19%
17%
18%
Over 29.5
13%
15%
14%
Data Point
Vit Kopriva
Rei Sakamoto
Average
Over 18.5
100%
100%
100%
Over 19.5
100%
100%
100%
Over 20.5
100%
100%
100%
Over 21.5
100%
100%
100%
Over 22.5
100%
100%
100%
Over 23.5
100%
100%
100%
Over 24.5
100%
100%
100%
Over 25.5
100%
67%
84%
Over 26.5
100%
67%
84%
Over 27.5
100%
67%
84%
Over 28.5
100%
67%
84%
Over 29.5
100%
67%
84%
Over 30.5
80%
67%
74%
Over 31.5
80%
33%
57%
Over 32.5
80%
33%
57%
Over 33.5
80%
33%
57%
Over 34.5
80%
33%
57%
Over 35.5
80%
33%
57%
Over 36.5
80%
33%
57%
Over 37.5
80%
33%
57%
Break Points Won (Clay Courts)
2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Breaks Per Match
2.38
N/A
N/A
Over 0.5
100%
N/A
N/A
Over 1.5
88%
N/A
N/A
Over 2.5
63%
N/A
N/A
Over 3.5
25%
N/A
N/A
Over 4.5
13%
N/A
N/A
Over 5.5
0%
N/A
N/A
Over 6.5
0%
N/A
N/A
Over 7.5
0%
N/A
N/A
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
100%
Over 1.5
N/A
N/A
100%
Over 2.5
N/A
N/A
100%
Over 3.5
N/A
N/A
100%
Over 4.5
N/A
N/A
100%
Over 5.5
N/A
N/A
75%
Over 6.5
N/A
N/A
75%
Over 7.5
N/A
N/A
75%
Over 8.5
N/A
N/A
25%
Over 9.5
N/A
N/A
25%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Average Break-Points Converted (Set 1)
1.12
N/A
N/A
Average Break-Points Converted (Set 2)
0.88
N/A
N/A
Average Break-Points Converted (Set 3)
1
N/A
N/A
will Break Serve %
63%
N/A
N/A
will not Break Serve %
25%
N/A
N/A
Over 0.5
100%
N/A
N/A
Over 1.5
50%
N/A
N/A
Over 2.5
13%
N/A
N/A
Over 3.5
0%
N/A
N/A
Over 4.5
0%
N/A
N/A
Over 5.5
0%
N/A
N/A
Over 6.5
0%
N/A
N/A
Over 7.5
0%
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
Vit Kopriva
Rei Sakamoto
Match Total
Breaks Per Match
3.27
2.08
5.35
Over 0.5
93%
67%
100%
Over 1.5
86%
33%
91%
Over 2.5
72%
33%
86%
Over 3.5
49%
17%
73%
Over 4.5
37%
0%
58%
Over 5.5
14%
0%
37%
Over 6.5
5%
0%
34%
Over 7.5
2%
0%
20%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Breaks Per Match
4
N/A
3
Over 0.5
100%
N/A
100%
Over 1.5
100%
N/A
84%
Over 2.5
50%
N/A
84%
Over 3.5
50%
N/A
84%
Over 4.5
50%
N/A
84%
Over 5.5
50%
N/A
47%
Over 6.5
50%
N/A
47%
Over 7.5
0%
N/A
37%
Over 8.5
0%
N/A
20%
Over 9.5
0%
N/A
10%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Average Break-Points Converted (Set 1)
1.33
1
2.22
Average Break-Points Converted (Set 2)
1.37
0.67
2.29
Average Break-Points Converted (Set 3)
1.44
1.25
2.28
will Break Serve %
54%
2%
N/A
will not Break Serve %
40%
37%
N/A
Over 0.5
88%
17%
96%
Over 1.5
44%
0%
65%
Over 2.5
16%
0%
34%
Over 3.5
5%
0%
20%
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
Vit Kopriva
Rei Sakamoto
Match Total
Double Faults Per Match
3.25
N/A
N/A
Over 0.5 (1+)
88%
N/A
N/A
Over 1.5 (2+)
75%
N/A
N/A
Over 2.5 (3+)
63%
N/A
N/A
Over 3.5 (4+)
50%
N/A
N/A
Over 4.5 (5+)
25%
N/A
N/A
Over 5.5 (6+)
13%
N/A
N/A
Over 6.5 (7+)
13%
N/A
N/A
Over 7.5 (8+)
0%
N/A
N/A
Over 8.5 (9+)
0%
N/A
N/A
Over 9.5 (10+)
0%
N/A
N/A
Over 10.5 (11+)
0%
N/A
N/A
Data Point
Vit Kopriva
Rei Sakamoto
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
Vit Kopriva
Rei Sakamoto
Match Total
Double Faults Per Match
2.84
1.83
4.67
Over 0.5 (1+)
91%
83%
91%
Over 1.5 (2+)
70%
50%
80%
Over 2.5 (3+)
58%
33%
66%
Over 3.5 (4+)
35%
17%
61%
Over 4.5 (5+)
23%
0%
53%
Over 5.5 (6+)
5%
0%
47%
Over 6.5 (7+)
2%
0%
34%
Over 7.5 (8+)
0%
0%
12%
Over 8.5 (9+)
0%
0%
8%
Over 9.5 (10+)
0%
0%
5%
Over 10.5 (11+)
0%
0%
4%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Double Faults Per Match
3.5
N/A
2.5
Over 0.5 (1+)
100%
N/A
50%
Over 1.5 (2+)
50%
N/A
50%
Over 2.5 (3+)
50%
N/A
50%
Over 3.5 (4+)
50%
N/A
50%
Over 4.5 (5+)
50%
N/A
50%
Over 5.5 (6+)
50%
N/A
25%
Over 6.5 (7+)
0%
N/A
25%
Over 7.5 (8+)
0%
N/A
25%
Over 8.5 (9+)
0%
N/A
25%
Over 9.5 (10+)
0%
N/A
25%
Over 10.5 (11+)
0%
N/A
N/A
Tie Breaks (Clay Courts)
2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
(Match)
(Match)
Rei Sakamoto
(Match)
(Match)
Average
Tie Breaks Per Match
0.38
N/A
0.42
Over 0.5
13%
N/A
6%
Over 1.5
0%
N/A
N/A
Over 2.5
0%
N/A
N/A
Under 0.5
88%
N/A
44%
Under 1.5
100%
N/A
50%
Under 2.5
100%
N/A
50%
Data Point
Vit Kopriva (Match)
Rei Sakamoto (Match)
Average
Tie Breaks Per Match
0.5
1
0.75
Over 0.5
50%
100%
75%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
50%
0%
25%
Under 1.5
100%
100%
100%
Under 2.5
100%
100%
100%
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
(Match)
(Match)
Rei Sakamoto
(Match)
(Match)
Average
Tie Breaks Per Match
0.16
0.33
0.31
Over 0.5
9%
33%
21%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
91%
67%
79%
Under 1.5
100%
100%
100%
Under 2.5
100%
100%
100%
Data Point
Vit Kopriva (Match)
Rei Sakamoto (Match)
Average
Tie Breaks Per Match
0.6
1
0.8
Over 0.5
60%
100%
80%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
40%
0%
20%
Under 1.5
100%
100%
100%
Under 2.5
100%
100%
100%
Net Points Won (Clay Courts)
2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
Rei Sakamoto
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
Vit Kopriva
Rei Sakamoto
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
Vit Kopriva
Rei Sakamoto
Match Total
Net Points Won Per Match
6.5
6
12.5
Over 4.5 (5+)
64%
33%
49%
Over 5.5 (6+)
57%
33%
45%
Over 6.5 (7+)
57%
33%
45%
Over 7.5 (8+)
36%
33%
35%
Over 8.5 (9+)
29%
33%
31%
Over 9.5 (10+)
14%
33%
24%
Over 10.5 (11+)
14%
33%
24%
Over 11.5 (12+)
14%
33%
24%
Over 14.5 (15+)
7%
33%
20%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Net Points won Per Match
21.5
N/A
20.5
Over 4.5 (5+)
100%
N/A
50%
Over 5.5 (6+)
100%
N/A
50%
Over 6.5 (7+)
100%
N/A
50%
Over 7.5 (8+)
100%
N/A
50%
Over 8.5 (9+)
100%
N/A
50%
Over 9.5 (10+)
100%
N/A
50%
Over 10.5 (11+)
100%
N/A
50%
Over 11.5 (12+)
100%
N/A
50%
Over 14.5 (15+)
100%
N/A
50%
Over 19.5 (20+)
50%
N/A
25%
Over 22.5 (23+)
50%
N/A
25%
Head-to-Head (Grass Courts)
Performance
Profile
Data Point
Vit Kopriva
Rei Sakamoto
Wins
H2H
H2H
0(0%)
0(0%)
Sets Won
H2H
H2H
0(0%)
0(0%)
Win Percentage
2026 Calendar Year
2026 Calendar Year
N/A0 / 0 Matches
N/A0 / 0 Matches
Win Percentage
Last 12 Months
Last 12 Months
50.0%1 / 2 Matches
N/A0 / 0 Matches
Data Point
Vit Kopriva
Rei Sakamoto
Main Hand
Right-handed
Right-handed
Age
28
19
Birthday
June 15, 1997
June 24, 2006
Height
1.78m
1.93m
Weight
69kg
80kg
Win Percentage (Grass Courts)
2026 Calendar Year
Last 12 Months
Data Point
Vit Kopriva
Rei Sakamoto
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
Data Point
Vit Kopriva
Rei Sakamoto
Match Wins
50%
N/A
Match Wins (3 Sets)
50%
N/A
Match Wins (5 Sets)
0%
N/A
Wins in Straight Sets
50%
N/A
Wins From Behind
0%
N/A
Won At Least 1 Set
100%
N/A
Set 1 Win
100%
N/A
Set 2 Win
50%
N/A
Set 3 Win
0%
N/A
Set 4 Win
0%
N/A
Set 5 Win
67%
0%
Aces (Grass Courts)
2026 Calendar Year
Last 12 Months
Milestones
Over
Under
Data Point
Vit Kopriva
Rei Sakamoto
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
Vit Kopriva
Rei Sakamoto
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
Vit Kopriva
Rei Sakamoto
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
Vit Kopriva
Rei Sakamoto
Match Total
Aces Per Match
3.5
N/A
N/A
Most Aces in a match
35%
68%
N/A
1+
100%
N/A
50%
2+
50%
N/A
50%
3+
50%
N/A
50%
4+
50%
N/A
50%
5+
50%
N/A
50%
6+
0%
N/A
50%
7+
0%
N/A
50%
8+
0%
N/A
50%
9+
0%
N/A
50%
10+
0%
N/A
50%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Over 0.5
100%
N/A
50%
Over 1.5
50%
N/A
50%
Over 2.5
50%
N/A
50%
Over 3.5
50%
N/A
50%
Over 4.5
50%
N/A
50%
Over 5.5
50%
N/A
50%
Over 6.5
0%
N/A
50%
Over 7.5
0%
N/A
50%
Over 8.5
0%
N/A
50%
Over 9.5
0%
N/A
50%
Over 10.5
0%
N/A
25%
Over 11.5
0%
N/A
25%
Over 12.5
0%
N/A
25%
Over 13.5
0%
N/A
25%
Over 14.5
0%
N/A
25%
Over 15.5
0%
N/A
25%
Over 16.5
0%
N/A
25%
Over 17.5
0%
N/A
N/A
Over 18.5
0%
N/A
N/A
Over 19.5
0%
N/A
N/A
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Under 0.5
0%
N/A
N/A
Under 1.5
50%
N/A
N/A
Under 2.5
50%
N/A
N/A
Under 3.5
50%
N/A
N/A
Under 4.5
50%
N/A
N/A
Under 5.5
50%
N/A
N/A
Under 6.5
100%
N/A
N/A
Under 7.5
100%
N/A
N/A
Under 8.5
100%
N/A
N/A
Under 9.5
100%
N/A
N/A
Under 10.5
100%
N/A
25%
Under 11.5
100%
N/A
25%
Under 12.5
100%
N/A
25%
Under 13.5
100%
N/A
25%
Under 14.5
100%
N/A
25%
Match Total Games (Grass Courts)
2026 Calendar Year
Last 12 Months
Total Games In A Set
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
Rei Sakamoto
Average
Average Games in a Set
9.89
9.59
9.74
Over 6.5
100%
94%
97%
Over 7.5
100%
75%
88%
Over 8.5
87%
56%
72%
Over 9.5
67%
44%
56%
Over 10.5
27%
25%
26%
Over 11.5
27%
25%
26%
Over 12.5
20%
19%
20%
Data Point
Vit Kopriva
Rei Sakamoto
Average
Over 12.5
100%
100%
100%
Over 13.5
100%
94%
97%
Over 14.5
100%
94%
97%
Over 15.5
100%
88%
94%
Over 16.5
93%
75%
84%
Over 17.5
93%
69%
81%
Over 18.5
87%
69%
78%
Over 19.5
67%
50%
59%
Over 20.5
60%
44%
52%
Over 21.5
53%
25%
39%
Over 22.5
53%
25%
39%
Over 23.5
40%
13%
27%
Over 24.5
40%
6%
23%
Over 25.5
33%
6%
20%
Over 26.5
20%
6%
13%
Over 27.5
20%
6%
13%
Over 28.5
20%
6%
13%
Over 29.5
13%
6%
10%
Data Point
Vit Kopriva
Rei Sakamoto
Average
Over 18.5
100%
100%
100%
Over 19.5
100%
100%
100%
Over 20.5
100%
100%
100%
Over 21.5
100%
100%
100%
Over 22.5
100%
100%
100%
Over 23.5
100%
100%
100%
Over 24.5
100%
100%
100%
Over 25.5
100%
100%
100%
Over 26.5
100%
100%
100%
Over 27.5
100%
100%
100%
Over 28.5
100%
100%
100%
Over 29.5
100%
100%
100%
Over 30.5
50%
100%
75%
Over 31.5
50%
100%
75%
Over 32.5
50%
100%
75%
Over 33.5
50%
100%
75%
Over 34.5
50%
100%
75%
Over 35.5
50%
100%
75%
Over 36.5
50%
100%
75%
Over 37.5
50%
100%
75%
Total Games In A Set
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
Rei Sakamoto
Average
Average Games in a Set
9.31
9.69
9.5
Over 6.5
100%
97%
99%
Over 7.5
91%
78%
85%
Over 8.5
69%
66%
68%
Over 9.5
41%
47%
44%
Over 10.5
16%
25%
21%
Over 11.5
16%
25%
21%
Over 12.5
7%
20%
14%
Data Point
Vit Kopriva
Rei Sakamoto
Average
Over 12.5
100%
100%
100%
Over 13.5
100%
97%
99%
Over 14.5
100%
97%
99%
Over 15.5
97%
92%
95%
Over 16.5
91%
85%
88%
Over 17.5
85%
78%
82%
Over 18.5
72%
73%
73%
Over 19.5
56%
61%
59%
Over 20.5
51%
56%
54%
Over 21.5
44%
51%
48%
Over 22.5
40%
46%
43%
Over 23.5
37%
36%
37%
Over 24.5
35%
31%
33%
Over 25.5
31%
24%
28%
Over 26.5
26%
22%
24%
Over 27.5
26%
22%
24%
Over 28.5
19%
17%
18%
Over 29.5
13%
15%
14%
Data Point
Vit Kopriva
Rei Sakamoto
Average
Over 18.5
100%
100%
100%
Over 19.5
100%
100%
100%
Over 20.5
100%
100%
100%
Over 21.5
100%
100%
100%
Over 22.5
100%
100%
100%
Over 23.5
100%
100%
100%
Over 24.5
100%
100%
100%
Over 25.5
100%
67%
84%
Over 26.5
100%
67%
84%
Over 27.5
100%
67%
84%
Over 28.5
100%
67%
84%
Over 29.5
100%
67%
84%
Over 30.5
80%
67%
74%
Over 31.5
80%
33%
57%
Over 32.5
80%
33%
57%
Over 33.5
80%
33%
57%
Over 34.5
80%
33%
57%
Over 35.5
80%
33%
57%
Over 36.5
80%
33%
57%
Over 37.5
80%
33%
57%
Break Points Won (Grass Courts)
2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Breaks Per Set
Data Point
Vit Kopriva
Rei Sakamoto
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
Vit Kopriva
Rei Sakamoto
Match Total
Breaks Per Match
N/A
N/A
N/A
Over 0.5
N/A
N/A
100%
Over 1.5
N/A
N/A
100%
Over 2.5
N/A
N/A
100%
Over 3.5
N/A
N/A
100%
Over 4.5
N/A
N/A
100%
Over 5.5
N/A
N/A
75%
Over 6.5
N/A
N/A
75%
Over 7.5
N/A
N/A
75%
Over 8.5
N/A
N/A
25%
Over 9.5
N/A
N/A
25%
Data Point
Vit Kopriva
Rei Sakamoto
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
Vit Kopriva
Rei Sakamoto
Match Total
Breaks Per Match
4.25
N/A
3.25
Over 0.5
100%
N/A
50%
Over 1.5
100%
N/A
50%
Over 2.5
100%
N/A
50%
Over 3.5
100%
N/A
50%
Over 4.5
50%
N/A
50%
Over 5.5
50%
N/A
50%
Over 6.5
0%
N/A
50%
Over 7.5
0%
N/A
50%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Breaks Per Match
2.5
N/A
1.5
Over 0.5
100%
N/A
100%
Over 1.5
100%
N/A
84%
Over 2.5
0%
N/A
84%
Over 3.5
0%
N/A
84%
Over 4.5
0%
N/A
84%
Over 5.5
0%
N/A
47%
Over 6.5
0%
N/A
47%
Over 7.5
0%
N/A
37%
Over 8.5
0%
N/A
20%
Over 9.5
0%
N/A
10%
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Average Break-Points Converted (Set 1)
2.25
N/A
2.22
Average Break-Points Converted (Set 2)
1.5
N/A
2.29
Average Break-Points Converted (Set 3)
1
N/A
2.28
will Break Serve %
72%
N/A
N/A
will not Break Serve %
27%
N/A
N/A
Over 0.5
100%
N/A
96%
Over 1.5
100%
N/A
65%
Over 2.5
100%
N/A
34%
Over 3.5
0%
N/A
20%
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
Vit Kopriva
Rei Sakamoto
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
Vit Kopriva
Rei Sakamoto
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
Vit Kopriva
Rei Sakamoto
Match Total
Double Faults Per Match
4.5
N/A
N/A
Over 0.5 (1+)
100%
N/A
N/A
Over 1.5 (2+)
100%
N/A
N/A
Over 2.5 (3+)
100%
N/A
N/A
Over 3.5 (4+)
100%
N/A
N/A
Over 4.5 (5+)
50%
N/A
N/A
Over 5.5 (6+)
0%
N/A
N/A
Over 6.5 (7+)
0%
N/A
N/A
Over 7.5 (8+)
0%
N/A
N/A
Over 8.5 (9+)
0%
N/A
N/A
Over 9.5 (10+)
0%
N/A
N/A
Over 10.5 (11+)
0%
N/A
N/A
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Double Faults Per Match
10
N/A
9
Over 0.5 (1+)
100%
N/A
50%
Over 1.5 (2+)
100%
N/A
50%
Over 2.5 (3+)
100%
N/A
50%
Over 3.5 (4+)
100%
N/A
50%
Over 4.5 (5+)
100%
N/A
50%
Over 5.5 (6+)
100%
N/A
50%
Over 6.5 (7+)
100%
N/A
50%
Over 7.5 (8+)
100%
N/A
50%
Over 8.5 (9+)
100%
N/A
50%
Over 9.5 (10+)
100%
N/A
50%
Over 10.5 (11+)
0%
N/A
50%
Tie Breaks (Grass Courts)
2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
(Match)
(Match)
Rei Sakamoto
(Match)
(Match)
Average
Tie Breaks Per Match
N/A
N/A
0.42
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
Vit Kopriva (Match)
Rei Sakamoto (Match)
Average
Tie Breaks Per Match
0.5
1
0.75
Over 0.5
50%
100%
75%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
50%
0%
25%
Under 1.5
100%
100%
100%
Under 2.5
100%
100%
100%
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
(Match)
(Match)
Rei Sakamoto
(Match)
(Match)
Average
Tie Breaks Per Match
0.5
N/A
0.31
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
Vit Kopriva (Match)
Rei Sakamoto (Match)
Average
Tie Breaks Per Match
0.6
1
0.8
Over 0.5
60%
100%
80%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
40%
0%
20%
Under 1.5
100%
100%
100%
Under 2.5
100%
100%
100%
Net Points Won (Grass Courts)
2026 Calendar Year
Last 12 Months
3 Set Matches
5 Set Matches
Data Point
Vit Kopriva
Rei Sakamoto
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
Vit Kopriva
Rei Sakamoto
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
Vit Kopriva
Rei Sakamoto
Match Total
Net Points Won Per Match
8.75
N/A
N/A
Over 4.5 (5+)
50%
N/A
N/A
Over 5.5 (6+)
50%
N/A
N/A
Over 6.5 (7+)
50%
N/A
N/A
Over 7.5 (8+)
50%
N/A
N/A
Over 8.5 (9+)
0%
N/A
N/A
Over 9.5 (10+)
0%
N/A
N/A
Over 10.5 (11+)
0%
N/A
N/A
Over 11.5 (12+)
0%
N/A
N/A
Over 14.5 (15+)
0%
N/A
N/A
Data Point
Vit Kopriva
Rei Sakamoto
Match Total
Net Points won Per Match
32
N/A
31
Over 4.5 (5+)
100%
N/A
50%
Over 5.5 (6+)
100%
N/A
50%
Over 6.5 (7+)
100%
N/A
50%
Over 7.5 (8+)
100%
N/A
50%
Over 8.5 (9+)
100%
N/A
50%
Over 9.5 (10+)
100%
N/A
50%
Over 10.5 (11+)
100%
N/A
50%
Over 11.5 (12+)
0%
N/A
N/A
Over 14.5 (15+)
0%
N/A
N/A
Over 19.5 (20+)
0%
N/A
N/A
Over 22.5 (23+)
0%
N/A
N/A
Latest Results For Vit Kopriva
Date
Tournament
Player
Opponent
Total Sets
Vit Kopriva
14 - 8
Opponent
Total Wins
Vit Kopriva
6 - 4
Opponent
Win Percentage
Vit Kopriva
60% - 40%
Opponent
Latest Results For Rei Sakamoto
Date
Tournament
Player
Opponent
Total Sets
Rei Sakamoto
12 - 10
Opponent
Total Wins
Rei Sakamoto
6 - 4
Opponent
Win Percentage
Rei Sakamoto
60% - 40%
Opponent
Ranking
Elo
Ranking
Elo
Ranking
Elo