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Head to Head

 › 

Sema vs Mei

Erika Sema vs Mei Yamaguchi Head-to-Head Stats & Results

Japan Erika SemaErika Sema - Japan
Erika Sema
55 Average Form
L
W
L
L
W
W
L

WTA Rank

558

Elo Score

91

Age 37

H2H Record

No H2H

Wins

No Past Match-Ups

Mei Yamaguchi and Erika Sema are likely playing for the first time at the professional level.

JapanMei YamaguchiJapan - Mei Yamaguchi
Mei Yamaguchi
Average Form 52
W
L
W
L
W
W
L

WTA Rank

251

Elo Score

284

Age 27

Verdict : Mei Yamaguchi and Erika Sema have equal wins in their careers.

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

Head-to-Head - Full Stats

Performance
Profile
Data Point
Erika Sema
Mei Yamaguchi
Prize Money
Career
$466,853USD
$64,017USD
Current Rank
558
251
Wins
H2H
0(0.0%)
1(100.0%)
Sets Won
H2H
0(0.0%)
2(100.0%)
Win Percentage
2026 Calendar Year
55.0%11 / 20 Matches
51.9%14 / 27 Matches
Win Percentage
Last 12 Months
53.2%25 / 47 Matches
50.0%27 / 54 Matches
Data Point
Erika Sema
Mei Yamaguchi
Main Hand
Age
37
27
Birthday
November 24, 1988
June 14, 1999
Height
-m
-m
Weight
-kg
-kg

Head-to-Head Record

No head-to-head record between Erika Sema and Mei Yamaguchi. This might be their first match.

Win Percentage (Match / Set)

2026 Calendar Year
Last 12 Months
Erika Sema
 
55% Win52% Win

Erika Sema is performing better in the current calendar year.

Mei Yamaguchi
Data Point
Erika Sema
Mei Yamaguchi
Match Wins
55%
52%
Match Wins (3 Sets)
56%
54%
Wins in Straight Sets
45%
30%
Wins From Behind
11%
28%
Won At Least 1 Set
65%
67%
Set 1 Win
55%
37%
Set 2 Win
53%
59%
Set 3 Win
67%
60%
Erika Sema
 
53% Win50% Win

Erika Sema is performing better in the trailing 12 months.

Erika Sema
Data Point
Erika Sema
Mei Yamaguchi
Match Wins
53%
50%
Match Wins (3 Sets)
53%
49%
Wins in Straight Sets
43%
30%
Wins From Behind
9%
23%
Won At Least 1 Set
68%
65%
Set 1 Win
57%
44%
Set 2 Win
52%
50%
Set 3 Win
45%
58%

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

2026 Calendar Year
Last 12 Months
Milestones
Over
Under
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Aces Per Match
N/A
1.80
N/A
Most Aces in a match
N/A
40%
N/A
1+
N/A
60%
N/A
2+
N/A
60%
N/A
3+
N/A
40%
N/A
4+
N/A
20%
N/A
5+
N/A
0%
N/A
6+
N/A
0%
N/A
7+
N/A
0%
N/A
8+
N/A
0%
N/A
9+
N/A
0%
N/A
10+
N/A
0%
N/A
15+
N/A
0%
N/A
20+
N/A
0%
N/A
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Over 0.5
N/A
60%
N/A
Over 1.5
N/A
60%
N/A
Over 2.5
N/A
40%
N/A
Over 3.5
N/A
20%
N/A
Over 4.5
N/A
0%
N/A
Over 5.5
N/A
0%
N/A
Over 6.5
N/A
0%
N/A
Over 7.5
N/A
0%
N/A
Over 8.5
N/A
0%
N/A
Over 9.5
N/A
0%
N/A
Over 10.5
N/A
0%
N/A
Over 11.5
N/A
0%
N/A
Over 12.5
N/A
0%
N/A
Over 13.5
N/A
0%
N/A
Over 14.5
N/A
0%
N/A
Over 15.5
N/A
0%
N/A
Over 16.5
N/A
0%
N/A
Over 17.5
N/A
0%
N/A
Over 18.5
N/A
0%
N/A
Over 19.5
N/A
0%
N/A
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Under 0.5
N/A
40%
N/A
Under 1.5
N/A
40%
10%
Under 2.5
N/A
60%
20%
Under 3.5
N/A
80%
30%
Under 4.5
N/A
100%
30%
Under 5.5
N/A
100%
30%
Under 6.5
N/A
100%
40%
Under 7.5
N/A
100%
40%
Under 8.5
N/A
100%
50%
Under 9.5
N/A
100%
50%
Under 10.5
N/A
100%
50%
Under 11.5
N/A
100%
50%
Under 12.5
N/A
100%
50%
Under 13.5
N/A
100%
50%
Under 14.5
N/A
100%
50%
Milestones
Over
Under
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Aces Per Match
N/A
1.07
N/A
Most Aces in a match
N/A
21%
N/A
1+
N/A
50%
50%
2+
N/A
36%
35%
3+
N/A
14%
25%
4+
N/A
7%
21%
5+
N/A
0%
21%
6+
N/A
0%
21%
7+
N/A
0%
14%
8+
N/A
0%
10%
9+
N/A
0%
7%
10+
N/A
0%
7%
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Over 0.5
N/A
50%
50%
Over 1.5
N/A
36%
35%
Over 2.5
N/A
14%
25%
Over 3.5
N/A
7%
21%
Over 4.5
N/A
0%
21%
Over 5.5
N/A
0%
21%
Over 6.5
N/A
0%
14%
Over 7.5
N/A
0%
10%
Over 8.5
N/A
0%
7%
Over 9.5
N/A
0%
7%
Over 10.5
N/A
0%
3%
Over 11.5
N/A
0%
3%
Over 12.5
N/A
0%
3%
Over 13.5
N/A
0%
3%
Over 14.5
N/A
0%
N/A
Over 15.5
N/A
0%
N/A
Over 16.5
N/A
0%
N/A
Over 17.5
N/A
0%
N/A
Over 18.5
N/A
0%
N/A
Over 19.5
N/A
0%
N/A
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Under 0.5
N/A
50%
N/A
Under 1.5
N/A
64%
14%
Under 2.5
N/A
86%
25%
Under 3.5
N/A
93%
28%
Under 4.5
N/A
100%
28%
Under 5.5
N/A
100%
28%
Under 6.5
N/A
100%
35%
Under 7.5
N/A
100%
39%
Under 8.5
N/A
100%
43%
Under 9.5
N/A
100%
43%
Under 10.5
N/A
100%
46%
Under 11.5
N/A
100%
46%
Under 12.5
N/A
100%
46%
Under 13.5
N/A
100%
46%
Under 14.5
N/A
100%
50%

Match Total Games - Over/Under

2026 Calendar Year
Last 12 Months
Total Games In A Set
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
Average
Average Games in a Set
8.35
9.22
8.79
Over 6.5
94%
100%
97%
Over 7.5
83%
88%
86%
Over 8.5
50%
79%
65%
Over 9.5
22%
38%
30%
Over 10.5
6%
8%
7%
Over 11.5
6%
8%
7%
Over 12.5
0%
0%
0%
Data Point
Erika Sema
Mei Yamaguchi
Average
Over 12.5
94%
100%
97%
Over 13.5
94%
100%
97%
Over 14.5
94%
96%
95%
Over 15.5
83%
88%
86%
Over 16.5
67%
88%
78%
Over 17.5
56%
71%
64%
Over 18.5
44%
54%
49%
Over 19.5
33%
50%
42%
Over 20.5
33%
46%
40%
Over 21.5
28%
46%
37%
Over 22.5
17%
38%
28%
Over 23.5
17%
38%
28%
Over 24.5
17%
33%
25%
Over 25.5
17%
29%
23%
Over 26.5
17%
29%
23%
Over 27.5
17%
21%
19%
Over 28.5
17%
17%
17%
Over 29.5
11%
13%
12%
Total Games In A Set
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
Average
Average Games in a Set
8.94
9.13
9.04
Over 6.5
98%
94%
96%
Over 7.5
80%
82%
81%
Over 8.5
62%
63%
63%
Over 9.5
38%
39%
39%
Over 10.5
13%
14%
14%
Over 11.5
13%
14%
14%
Over 12.5
2%
2%
2%
Data Point
Erika Sema
Mei Yamaguchi
Average
Over 12.5
98%
98%
98%
Over 13.5
98%
98%
98%
Over 14.5
96%
96%
96%
Over 15.5
87%
86%
87%
Over 16.5
76%
76%
76%
Over 17.5
64%
65%
65%
Over 18.5
53%
55%
54%
Over 19.5
40%
49%
45%
Over 20.5
38%
43%
41%
Over 21.5
33%
43%
38%
Over 22.5
24%
37%
31%
Over 23.5
24%
37%
31%
Over 24.5
24%
33%
29%
Over 25.5
22%
29%
26%
Over 26.5
18%
24%
21%
Over 27.5
16%
16%
16%
Over 28.5
13%
14%
14%
Over 29.5
11%
12%
12%

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

2026 Calendar Year
Last 12 Months
3 Set Matches
Breaks Per Set
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Breaks Per Match
N/A
5.2
N/A
Over 0.5
N/A
100%
N/A
Over 1.5
N/A
100%
N/A
Over 2.5
N/A
100%
N/A
Over 3.5
N/A
60%
N/A
Over 4.5
N/A
60%
N/A
Over 5.5
N/A
60%
N/A
Over 6.5
N/A
40%
N/A
Over 7.5
N/A
0%
N/A
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Average Break-Points Converted (Set 1)
N/A
1.9
N/A
Average Break-Points Converted (Set 2)
N/A
2.1
N/A
Average Break-Points Converted (Set 3)
N/A
1.33
N/A
will Break Serve %
N/A
40%
N/A
will not Break Serve %
N/A
38%
N/A
Over 0.5
N/A
60%
N/A
Over 1.5
N/A
60%
N/A
Over 2.5
N/A
0%
N/A
Over 3.5
N/A
0%
N/A
Over 4.5
N/A
0%
N/A
Over 5.5
N/A
0%
N/A
Over 6.5
N/A
0%
N/A
Over 7.5
N/A
0%
N/A

Breaks Per Set data uses Set 1 as a sample.

3 Set Matches
Breaks Per Set
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Breaks Per Match
N/A
4.29
3.29
Over 0.5
N/A
93%
50%
Over 1.5
N/A
71%
50%
Over 2.5
N/A
71%
50%
Over 3.5
N/A
57%
46%
Over 4.5
N/A
50%
43%
Over 5.5
N/A
43%
43%
Over 6.5
N/A
21%
43%
Over 7.5
N/A
0%
28%
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Average Break-Points Converted (Set 1)
N/A
1.61
0.61
Average Break-Points Converted (Set 2)
N/A
1.93
0.93
Average Break-Points Converted (Set 3)
N/A
1.42
0.42
will Break Serve %
N/A
43%
N/A
will not Break Serve %
N/A
46%
N/A
Over 0.5
N/A
64%
50%
Over 1.5
N/A
43%
50%
Over 2.5
N/A
7%
28%
Over 3.5
N/A
0%
18%

Breaks Per Set data uses Set 1 as a sample.

Double Faults - Over/Under

2026 Calendar Year
Last 12 Months
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Double Faults Per Match
N/A
1.6
N/A
Over 0.5 (1+)
N/A
100%
N/A
Over 1.5 (2+)
N/A
40%
N/A
Over 2.5 (3+)
N/A
20%
N/A
Over 3.5 (4+)
N/A
0%
N/A
Over 4.5 (5+)
N/A
0%
N/A
Over 5.5 (6+)
N/A
0%
N/A
Over 6.5 (7+)
N/A
0%
N/A
Over 7.5 (8+)
N/A
0%
N/A
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
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Double Faults Per Match
N/A
2.21
N/A
Over 0.5 (1+)
N/A
93%
N/A
Over 1.5 (2+)
N/A
50%
N/A
Over 2.5 (3+)
N/A
36%
N/A
Over 3.5 (4+)
N/A
29%
N/A
Over 4.5 (5+)
N/A
7%
N/A
Over 5.5 (6+)
N/A
7%
N/A
Over 6.5 (7+)
N/A
0%
N/A
Over 7.5 (8+)
N/A
0%
N/A
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

Tie Breaks - Over/Under

2026 Calendar Year
Last 12 Months
3 Set Matches
Data Point
Erika Sema
(Match)
Mei Yamaguchi
(Match)
Average
Tie Breaks Per Match
0.17
0.17
0.17
Over 0.5
17%
17%
17%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
83%
83%
17%
Under 1.5
100%
100%
0%
Under 2.5
100%
100%
0%
3 Set Matches
Data Point
Erika Sema
(Match)
Mei Yamaguchi
(Match)
Average
Tie Breaks Per Match
0.13
0.14
0.14
Over 0.5
13%
12%
13%
Over 1.5
0%
2%
1%
Over 2.5
0%
0%
0%
Under 0.5
13%
12%
13%
Under 1.5
0%
2%
1%
Under 2.5
0%
0%
0%

Net Points Won - Over/Under

2026 Calendar Year
Last 12 Months
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
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
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
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

Head-to-Head (Hard Courts)

Performance
Profile
Data Point
Erika Sema
Mei Yamaguchi
Wins
H2H
0(0.0%)
1(100.0%)
Sets Won
H2H
0(0.0%)
2(100.0%)
Win Percentage
2026 Calendar Year
55.6%10 / 18 Matches
54.2%13 / 24 Matches
Win Percentage
Last 12 Months
53.3%24 / 45 Matches
49.0%24 / 49 Matches
Data Point
Erika Sema
Mei Yamaguchi
Main Hand
Age
37
27
Birthday
November 24, 1988
June 14, 1999
Height
-m
-m
Weight
-kg
-kg

Win Percentage (Hard Courts)

2026 Calendar Year
Last 12 Months
Erika Sema
 
55% Win52% Win

Erika Sema is performing better in the current calendar year.

Mei Yamaguchi
Data Point
Erika Sema
Mei Yamaguchi
Match Wins
56%
54%
Match Wins (3 Sets)
56%
54%
Wins in Straight Sets
44%
33%
Wins From Behind
13%
27%
Won At Least 1 Set
67%
71%
Set 1 Win
56%
42%
Set 2 Win
56%
63%
Set 3 Win
67%
56%
Erika Sema
 
53% Win49% Win

Erika Sema is performing better in the trailing 12 months.

Erika Sema
Data Point
Erika Sema
Mei Yamaguchi
Match Wins
53%
49%
Match Wins (3 Sets)
53%
49%
Wins in Straight Sets
42%
31%
Wins From Behind
9%
19%
Won At Least 1 Set
69%
65%
Set 1 Win
58%
47%
Set 2 Win
53%
49%
Set 3 Win
45%
53%

Aces (Hard Courts)

2026 Calendar Year
Last 12 Months
Milestones
Over
Under
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Aces Per Match
N/A
1.80
N/A
Most Aces in a match
N/A
40%
N/A
1+
N/A
60%
N/A
2+
N/A
60%
N/A
3+
N/A
40%
N/A
4+
N/A
20%
N/A
5+
N/A
0%
N/A
6+
N/A
0%
N/A
7+
N/A
0%
N/A
8+
N/A
0%
N/A
9+
N/A
0%
N/A
10+
N/A
0%
N/A
15+
N/A
0%
N/A
20+
N/A
0%
N/A
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Over 0.5
N/A
60%
N/A
Over 1.5
N/A
60%
N/A
Over 2.5
N/A
40%
N/A
Over 3.5
N/A
20%
N/A
Over 4.5
N/A
0%
N/A
Over 5.5
N/A
0%
N/A
Over 6.5
N/A
0%
N/A
Over 7.5
N/A
0%
N/A
Over 8.5
N/A
0%
N/A
Over 9.5
N/A
0%
N/A
Over 10.5
N/A
0%
N/A
Over 11.5
N/A
0%
N/A
Over 12.5
N/A
0%
N/A
Over 13.5
N/A
0%
N/A
Over 14.5
N/A
0%
N/A
Over 15.5
N/A
0%
N/A
Over 16.5
N/A
0%
N/A
Over 17.5
N/A
0%
N/A
Over 18.5
N/A
0%
N/A
Over 19.5
N/A
0%
N/A
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Under 0.5
N/A
40%
N/A
Under 1.5
N/A
40%
10%
Under 2.5
N/A
60%
20%
Under 3.5
N/A
80%
30%
Under 4.5
N/A
100%
30%
Under 5.5
N/A
100%
30%
Under 6.5
N/A
100%
40%
Under 7.5
N/A
100%
40%
Under 8.5
N/A
100%
50%
Under 9.5
N/A
100%
50%
Under 10.5
N/A
100%
50%
Under 11.5
N/A
100%
50%
Under 12.5
N/A
100%
50%
Under 13.5
N/A
100%
50%
Under 14.5
N/A
100%
50%
Milestones
Over
Under
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Aces Per Match
N/A
1.07
N/A
Most Aces in a match
N/A
21%
N/A
1+
N/A
50%
50%
2+
N/A
36%
35%
3+
N/A
14%
25%
4+
N/A
7%
21%
5+
N/A
0%
21%
6+
N/A
0%
21%
7+
N/A
0%
14%
8+
N/A
0%
10%
9+
N/A
0%
7%
10+
N/A
0%
7%
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Over 0.5
N/A
50%
50%
Over 1.5
N/A
36%
35%
Over 2.5
N/A
14%
25%
Over 3.5
N/A
7%
21%
Over 4.5
N/A
0%
21%
Over 5.5
N/A
0%
21%
Over 6.5
N/A
0%
14%
Over 7.5
N/A
0%
10%
Over 8.5
N/A
0%
7%
Over 9.5
N/A
0%
7%
Over 10.5
N/A
0%
3%
Over 11.5
N/A
0%
3%
Over 12.5
N/A
0%
3%
Over 13.5
N/A
0%
3%
Over 14.5
N/A
0%
N/A
Over 15.5
N/A
0%
N/A
Over 16.5
N/A
0%
N/A
Over 17.5
N/A
0%
N/A
Over 18.5
N/A
0%
N/A
Over 19.5
N/A
0%
N/A
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Under 0.5
N/A
50%
N/A
Under 1.5
N/A
64%
14%
Under 2.5
N/A
86%
25%
Under 3.5
N/A
93%
28%
Under 4.5
N/A
100%
28%
Under 5.5
N/A
100%
28%
Under 6.5
N/A
100%
35%
Under 7.5
N/A
100%
39%
Under 8.5
N/A
100%
43%
Under 9.5
N/A
100%
43%
Under 10.5
N/A
100%
46%
Under 11.5
N/A
100%
46%
Under 12.5
N/A
100%
46%
Under 13.5
N/A
100%
46%
Under 14.5
N/A
100%
50%

Match Total Games (Hard Courts)

2026 Calendar Year
Last 12 Months
Total Games In A Set
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
Average
Average Games in a Set
8.35
9.22
8.79
Over 6.5
94%
100%
97%
Over 7.5
83%
88%
86%
Over 8.5
50%
79%
65%
Over 9.5
22%
38%
30%
Over 10.5
6%
8%
7%
Over 11.5
6%
8%
7%
Over 12.5
0%
0%
0%
Data Point
Erika Sema
Mei Yamaguchi
Average
Over 12.5
94%
100%
97%
Over 13.5
94%
100%
97%
Over 14.5
94%
96%
95%
Over 15.5
83%
88%
86%
Over 16.5
67%
88%
78%
Over 17.5
56%
71%
64%
Over 18.5
44%
54%
49%
Over 19.5
33%
50%
42%
Over 20.5
33%
46%
40%
Over 21.5
28%
46%
37%
Over 22.5
17%
38%
28%
Over 23.5
17%
38%
28%
Over 24.5
17%
33%
25%
Over 25.5
17%
29%
23%
Over 26.5
17%
29%
23%
Over 27.5
17%
21%
19%
Over 28.5
17%
17%
17%
Over 29.5
11%
13%
12%
Total Games In A Set
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
Average
Average Games in a Set
8.94
9.13
9.04
Over 6.5
98%
94%
96%
Over 7.5
80%
82%
81%
Over 8.5
62%
63%
63%
Over 9.5
38%
39%
39%
Over 10.5
13%
14%
14%
Over 11.5
13%
14%
14%
Over 12.5
2%
2%
2%
Data Point
Erika Sema
Mei Yamaguchi
Average
Over 12.5
98%
98%
98%
Over 13.5
98%
98%
98%
Over 14.5
96%
96%
96%
Over 15.5
87%
86%
87%
Over 16.5
76%
76%
76%
Over 17.5
64%
65%
65%
Over 18.5
53%
55%
54%
Over 19.5
40%
49%
45%
Over 20.5
38%
43%
41%
Over 21.5
33%
43%
38%
Over 22.5
24%
37%
31%
Over 23.5
24%
37%
31%
Over 24.5
24%
33%
29%
Over 25.5
22%
29%
26%
Over 26.5
18%
24%
21%
Over 27.5
16%
16%
16%
Over 28.5
13%
14%
14%
Over 29.5
11%
12%
12%

Break Points Won (Hard Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
Breaks Per Set
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Breaks Per Match
N/A
5.2
N/A
Over 0.5
N/A
100%
N/A
Over 1.5
N/A
100%
N/A
Over 2.5
N/A
100%
N/A
Over 3.5
N/A
60%
N/A
Over 4.5
N/A
60%
N/A
Over 5.5
N/A
60%
N/A
Over 6.5
N/A
40%
N/A
Over 7.5
N/A
0%
N/A
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Average Break-Points Converted (Set 1)
N/A
1.9
N/A
Average Break-Points Converted (Set 2)
N/A
2.1
N/A
Average Break-Points Converted (Set 3)
N/A
1.33
N/A
will Break Serve %
N/A
40%
N/A
will not Break Serve %
N/A
38%
N/A
Over 0.5
N/A
60%
N/A
Over 1.5
N/A
60%
N/A
Over 2.5
N/A
0%
N/A
Over 3.5
N/A
0%
N/A
Over 4.5
N/A
0%
N/A
Over 5.5
N/A
0%
N/A
Over 6.5
N/A
0%
N/A
Over 7.5
N/A
0%
N/A

Breaks Per Set data uses Set 1 as a sample.

3 Set Matches
Breaks Per Set
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Breaks Per Match
N/A
4.29
3.29
Over 0.5
N/A
93%
50%
Over 1.5
N/A
71%
50%
Over 2.5
N/A
71%
50%
Over 3.5
N/A
57%
46%
Over 4.5
N/A
50%
43%
Over 5.5
N/A
43%
43%
Over 6.5
N/A
21%
43%
Over 7.5
N/A
0%
28%
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Average Break-Points Converted (Set 1)
N/A
1.61
0.61
Average Break-Points Converted (Set 2)
N/A
1.93
0.93
Average Break-Points Converted (Set 3)
N/A
1.42
0.42
will Break Serve %
N/A
43%
N/A
will not Break Serve %
N/A
46%
N/A
Over 0.5
N/A
64%
50%
Over 1.5
N/A
43%
50%
Over 2.5
N/A
7%
28%
Over 3.5
N/A
0%
18%

Breaks Per Set data uses Set 1 as a sample.

Double Faults (Hard Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Double Faults Per Match
N/A
1.6
N/A
Over 0.5 (1+)
N/A
100%
N/A
Over 1.5 (2+)
N/A
40%
N/A
Over 2.5 (3+)
N/A
20%
N/A
Over 3.5 (4+)
N/A
0%
N/A
Over 4.5 (5+)
N/A
0%
N/A
Over 5.5 (6+)
N/A
0%
N/A
Over 6.5 (7+)
N/A
0%
N/A
Over 7.5 (8+)
N/A
0%
N/A
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
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
Match Total
Double Faults Per Match
N/A
2.21
N/A
Over 0.5 (1+)
N/A
93%
N/A
Over 1.5 (2+)
N/A
50%
N/A
Over 2.5 (3+)
N/A
36%
N/A
Over 3.5 (4+)
N/A
29%
N/A
Over 4.5 (5+)
N/A
7%
N/A
Over 5.5 (6+)
N/A
7%
N/A
Over 6.5 (7+)
N/A
0%
N/A
Over 7.5 (8+)
N/A
0%
N/A
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

Tie Breaks (Hard Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
Data Point
Erika Sema
(Match)
Mei Yamaguchi
(Match)
Average
Tie Breaks Per Match
0.17
0.17
0.17
Over 0.5
6%
8%
7%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
94%
92%
93%
Under 1.5
100%
100%
100%
Under 2.5
100%
100%
100%
3 Set Matches
Data Point
Erika Sema
(Match)
Mei Yamaguchi
(Match)
Average
Tie Breaks Per Match
0.13
0.14
0.14
Over 0.5
4%
6%
5%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
96%
94%
95%
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
Data Point
Erika Sema
Mei Yamaguchi
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
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
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

Head-to-Head (Clay Courts)

Performance
Profile
Data Point
Erika Sema
Mei Yamaguchi
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
Erika Sema
Mei Yamaguchi
Main Hand
Age
37
27
Birthday
November 24, 1988
June 14, 1999
Height
-m
-m
Weight
-kg
-kg

Win Percentage (Clay Courts)

2026 Calendar Year
Last 12 Months
Erika Sema
 
55% Win52% Win

Erika Sema is performing better in the current calendar year.

Mei Yamaguchi
Data Point
Erika Sema
Mei Yamaguchi
Match Wins
N/A
N/A
Match Wins (3 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
Erika Sema
 
N/A% WinN/A% Win

Erika Sema is performing better in the trailing 12 months.

Erika Sema
Data Point
Erika Sema
Mei Yamaguchi
Match Wins
N/A
N/A
Match Wins (3 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

Aces (Clay Courts)

2026 Calendar Year
Last 12 Months
Milestones
Over
Under
Data Point
Erika Sema
Mei Yamaguchi
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
Erika Sema
Mei Yamaguchi
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
Erika Sema
Mei Yamaguchi
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
Erika Sema
Mei Yamaguchi
Match Total
Aces Per Match
N/A
N/A
N/A
Most Aces in a match
N/A
21%
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
Erika Sema
Mei Yamaguchi
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
Erika Sema
Mei Yamaguchi
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
Data Point
Erika Sema
Mei Yamaguchi
Average
Average Games in a Set
8.35
9.22
8.79
Over 6.5
94%
100%
97%
Over 7.5
83%
88%
86%
Over 8.5
50%
79%
65%
Over 9.5
22%
38%
30%
Over 10.5
6%
8%
7%
Over 11.5
6%
8%
7%
Over 12.5
0%
0%
0%
Data Point
Erika Sema
Mei Yamaguchi
Average
Over 12.5
94%
100%
97%
Over 13.5
94%
100%
97%
Over 14.5
94%
96%
95%
Over 15.5
83%
88%
86%
Over 16.5
67%
88%
78%
Over 17.5
56%
71%
64%
Over 18.5
44%
54%
49%
Over 19.5
33%
50%
42%
Over 20.5
33%
46%
40%
Over 21.5
28%
46%
37%
Over 22.5
17%
38%
28%
Over 23.5
17%
38%
28%
Over 24.5
17%
33%
25%
Over 25.5
17%
29%
23%
Over 26.5
17%
29%
23%
Over 27.5
17%
21%
19%
Over 28.5
17%
17%
17%
Over 29.5
11%
13%
12%
Total Games In A Set
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
Average
Average Games in a Set
8.94
9.13
9.04
Over 6.5
98%
94%
96%
Over 7.5
80%
82%
81%
Over 8.5
62%
63%
63%
Over 9.5
38%
39%
39%
Over 10.5
13%
14%
14%
Over 11.5
13%
14%
14%
Over 12.5
2%
2%
2%
Data Point
Erika Sema
Mei Yamaguchi
Average
Over 12.5
98%
98%
98%
Over 13.5
98%
98%
98%
Over 14.5
96%
96%
96%
Over 15.5
87%
86%
87%
Over 16.5
76%
76%
76%
Over 17.5
64%
65%
65%
Over 18.5
53%
55%
54%
Over 19.5
40%
49%
45%
Over 20.5
38%
43%
41%
Over 21.5
33%
43%
38%
Over 22.5
24%
37%
31%
Over 23.5
24%
37%
31%
Over 24.5
24%
33%
29%
Over 25.5
22%
29%
26%
Over 26.5
18%
24%
21%
Over 27.5
16%
16%
16%
Over 28.5
13%
14%
14%
Over 29.5
11%
12%
12%

Break Points Won (Clay Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
Breaks Per Set
Data Point
Erika Sema
Mei Yamaguchi
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
Erika Sema
Mei Yamaguchi
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
Breaks Per Set
Data Point
Erika Sema
Mei Yamaguchi
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
Erika Sema
Mei Yamaguchi
Match Total
Average Break-Points Converted (Set 1)
N/A
N/A
0.61
Average Break-Points Converted (Set 2)
N/A
N/A
0.93
Average Break-Points Converted (Set 3)
N/A
N/A
0.42
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
50%
Over 1.5
N/A
N/A
50%
Over 2.5
N/A
N/A
28%
Over 3.5
N/A
N/A
18%

Breaks Per Set data uses Set 1 as a sample.

Double Faults (Clay Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
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
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
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
Data Point
Erika Sema
(Match)
Mei Yamaguchi
(Match)
Average
Tie Breaks Per Match
N/A
N/A
0.17
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
Data Point
Erika Sema
(Match)
Mei Yamaguchi
(Match)
Average
Tie Breaks Per Match
N/A
N/A
0.14
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
Data Point
Erika Sema
Mei Yamaguchi
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
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
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

Head-to-Head (Grass Courts)

Performance
Profile
Data Point
Erika Sema
Mei Yamaguchi
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
Erika Sema
Mei Yamaguchi
Main Hand
Age
37
27
Birthday
November 24, 1988
June 14, 1999
Height
-m
-m
Weight
-kg
-kg

Win Percentage (Grass Courts)

2026 Calendar Year
Last 12 Months
Erika Sema
 
55% Win52% Win

Erika Sema is performing better in the current calendar year.

Mei Yamaguchi
Data Point
Erika Sema
Mei Yamaguchi
Match Wins
N/A
N/A
Match Wins (3 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
Erika Sema
 
N/A% WinN/A% Win

Erika Sema is performing better in the trailing 12 months.

Erika Sema
Data Point
Erika Sema
Mei Yamaguchi
Match Wins
N/A
N/A
Match Wins (3 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

Aces (Grass Courts)

2026 Calendar Year
Last 12 Months
Milestones
Over
Under
Data Point
Erika Sema
Mei Yamaguchi
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
Erika Sema
Mei Yamaguchi
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
Erika Sema
Mei Yamaguchi
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
Erika Sema
Mei Yamaguchi
Match Total
Aces Per Match
N/A
N/A
N/A
Most Aces in a match
N/A
21%
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
Erika Sema
Mei Yamaguchi
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
Erika Sema
Mei Yamaguchi
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
Data Point
Erika Sema
Mei Yamaguchi
Average
Average Games in a Set
8.35
9.22
8.79
Over 6.5
94%
100%
97%
Over 7.5
83%
88%
86%
Over 8.5
50%
79%
65%
Over 9.5
22%
38%
30%
Over 10.5
6%
8%
7%
Over 11.5
6%
8%
7%
Over 12.5
0%
0%
0%
Data Point
Erika Sema
Mei Yamaguchi
Average
Over 12.5
94%
100%
97%
Over 13.5
94%
100%
97%
Over 14.5
94%
96%
95%
Over 15.5
83%
88%
86%
Over 16.5
67%
88%
78%
Over 17.5
56%
71%
64%
Over 18.5
44%
54%
49%
Over 19.5
33%
50%
42%
Over 20.5
33%
46%
40%
Over 21.5
28%
46%
37%
Over 22.5
17%
38%
28%
Over 23.5
17%
38%
28%
Over 24.5
17%
33%
25%
Over 25.5
17%
29%
23%
Over 26.5
17%
29%
23%
Over 27.5
17%
21%
19%
Over 28.5
17%
17%
17%
Over 29.5
11%
13%
12%
Total Games In A Set
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
Average
Average Games in a Set
8.94
9.13
9.04
Over 6.5
98%
94%
96%
Over 7.5
80%
82%
81%
Over 8.5
62%
63%
63%
Over 9.5
38%
39%
39%
Over 10.5
13%
14%
14%
Over 11.5
13%
14%
14%
Over 12.5
2%
2%
2%
Data Point
Erika Sema
Mei Yamaguchi
Average
Over 12.5
98%
98%
98%
Over 13.5
98%
98%
98%
Over 14.5
96%
96%
96%
Over 15.5
87%
86%
87%
Over 16.5
76%
76%
76%
Over 17.5
64%
65%
65%
Over 18.5
53%
55%
54%
Over 19.5
40%
49%
45%
Over 20.5
38%
43%
41%
Over 21.5
33%
43%
38%
Over 22.5
24%
37%
31%
Over 23.5
24%
37%
31%
Over 24.5
24%
33%
29%
Over 25.5
22%
29%
26%
Over 26.5
18%
24%
21%
Over 27.5
16%
16%
16%
Over 28.5
13%
14%
14%
Over 29.5
11%
12%
12%

Break Points Won (Grass Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
Breaks Per Set
Data Point
Erika Sema
Mei Yamaguchi
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
Erika Sema
Mei Yamaguchi
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
Breaks Per Set
Data Point
Erika Sema
Mei Yamaguchi
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
Erika Sema
Mei Yamaguchi
Match Total
Average Break-Points Converted (Set 1)
N/A
N/A
0.61
Average Break-Points Converted (Set 2)
N/A
N/A
0.93
Average Break-Points Converted (Set 3)
N/A
N/A
0.42
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
50%
Over 1.5
N/A
N/A
50%
Over 2.5
N/A
N/A
28%
Over 3.5
N/A
N/A
18%

Breaks Per Set data uses Set 1 as a sample.

Double Faults (Grass Courts)

2026 Calendar Year
Last 12 Months
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
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
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
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
Data Point
Erika Sema
(Match)
Mei Yamaguchi
(Match)
Average
Tie Breaks Per Match
N/A
N/A
0.17
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
Data Point
Erika Sema
(Match)
Mei Yamaguchi
(Match)
Average
Tie Breaks Per Match
N/A
N/A
0.14
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
Data Point
Erika Sema
Mei Yamaguchi
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
3 Set Matches
Data Point
Erika Sema
Mei Yamaguchi
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

WTA Singles

Women

Singles

 

Ranking

Elo

548

Ilinca Dalina Amariei

93

549

Lea Nilsson

93

550

Mariana Diaz-Oliva

92

551

Ying Zhang

92

552

Jana Kovackova

92

553

Mayu Crossley

92

554

Kayo Nishimura

92

555

Ekaterina Yashina

91

556

Grana Thaisa Pedretti

91

557

Julie Pastikova

91

558

Erika Sema

91

559

Mara Guth

90

560

Ann Akasha Ceuca

90

561

Bianca Barbulescu

90

562

Dalayna Hewitt

88

WTA Singles

Women

Singles

 

Ranking

Elo

241

Justina Mikulskyte

297

242

Katherine Sebov

294

243

Nao Hibino

292

244

Selena Janicijevic

287

245

Fangran Tian

287

246

Sada Nahimana

286

247

Caijsa Wilda Hennemann

286

248

Alicia Dudeney

286

249

Sara Sorribes Tormo

285

250

Kyoka Okamura

284

251

Mei Yamaguchi

284

252

Katarina Zavatska

283

253

Mia Pohankova

283

254

Vivian Wolff

283

255

Katrina Scott

281

ATP Singles

Men

Singles

 

Ranking

Elo

1

Jannik Sinner

13,500

2

Carlos Alcaraz

9,960

3

Alexander Zverev

7,190

4

Felix Auger-Aliassime

4,390

5

Ben Shelton

4,070

6

Alex De Minaur

4,060

7

Daniil Medvedev

3,810

8

Novak Djokovic

3,760

9

Taylor Fritz

3,635

10

Flavio Cobolli

3,540

11

Alexander Bublik

3,020

12

Jiri Lehecka

2,640

P Time : 0.063565015792847