Sofia Costoulas vs Tatiana Pieri Head-to-Head Stats & Results
Belgium Sofia CostoulasSofia Costoulas - Belgium
63 Average Form
L
W
L
W
L
W
W
WTA Rank
144
Elo Score
527
Age 21
H2H Record
No H2H
Wins
No Past Match-Ups
Sofia Costoulas and Tatiana Pieri are likely playing for the first time at the professional level.
Verdict : Sofia Costoulas and Tatiana Pieri have equal wins in their careers.
H2H Stats
Latest Results
ALL SURFACES
HARD •
CLAY •
GRASS •
Head-to-Head - Full Stats
Performance
Profile
Data Point
Sofia Costoulas
Tatiana Pieri
Prize Money
Career
Career
$68,427USD
$79,513USD
Current Rank
144
505
Wins
H2H
H2H
1(100.0%)
0(0.0%)
Sets Won
H2H
H2H
2(100.0%)
0(0.0%)
Win Percentage
2026 Calendar Year
2026 Calendar Year
63.2%24 / 38 Matches
36.4%8 / 22 Matches
Win Percentage
Last 12 Months
Last 12 Months
60.8%45 / 74 Matches
38.6%17 / 44 Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Main Hand
Right-handed
Age
21
27
Birthday
April 2, 2005
March 29, 1999
Height
-m
-m
Weight
-kg
-kg
Head-to-Head Record
No head-to-head record between Sofia Costoulas and Tatiana Pieri. This might be their first match.
Win Percentage (Match / Set)
2026 Calendar Year
Last 12 Months
Data Point
Sofia Costoulas
Tatiana Pieri
Match Wins
63%
36%
Match Wins (3 Sets)
67%
38%
Wins in Straight Sets
42%
18%
Wins From Behind
19%
18%
Won At Least 1 Set
74%
45%
Set 1 Win
63%
32%
Set 2 Win
53%
33%
Set 3 Win
73%
67%
Data Point
Sofia Costoulas
Tatiana Pieri
Match Wins
61%
39%
Match Wins (3 Sets)
63%
40%
Wins in Straight Sets
42%
25%
Wins From Behind
15%
16%
Won At Least 1 Set
73%
52%
Set 1 Win
64%
36%
Set 2 Win
52%
43%
Set 3 Win
64%
50%
Aces - Over/Under, Match Total, Average (3 Set Matches)
2026 Calendar Year
Last 12 Months
Milestones
Over
Under
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Aces Per Match
3.62
0.25
3.87
Most Aces in a match
50%
0%
N/A
1+
88%
25%
98%
2+
79%
0%
98%
3+
63%
0%
84%
4+
33%
0%
57%
5+
25%
0%
52%
6+
21%
0%
50%
7+
21%
0%
15%
8+
13%
0%
15%
9+
8%
0%
11%
10+
4%
0%
7%
15+
0%
0%
2%
20+
0%
0%
0%
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Over 0.5
88%
25%
98%
Over 1.5
79%
0%
98%
Over 2.5
63%
0%
84%
Over 3.5
33%
0%
57%
Over 4.5
25%
0%
52%
Over 5.5
25%
0%
50%
Over 6.5
21%
0%
15%
Over 7.5
13%
0%
15%
Over 8.5
8%
0%
11%
Over 9.5
4%
0%
7%
Over 10.5
4%
0%
4%
Over 11.5
0%
0%
4%
Over 12.5
0%
0%
4%
Over 13.5
0%
0%
2%
Over 14.5
0%
0%
2%
Over 15.5
0%
0%
2%
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
Sofia Costoulas
Tatiana Pieri
Match Total
Under 0.5
13%
75%
2%
Under 1.5
21%
100%
2%
Under 2.5
38%
100%
17%
Under 3.5
67%
100%
44%
Under 4.5
75%
100%
48%
Under 5.5
75%
100%
50%
Under 6.5
79%
100%
86%
Under 7.5
88%
100%
86%
Under 8.5
92%
100%
90%
Under 9.5
96%
100%
94%
Under 10.5
96%
100%
96%
Under 11.5
100%
100%
96%
Under 12.5
100%
100%
96%
Under 13.5
100%
100%
98%
Under 14.5
100%
100%
98%
Milestones
Over
Under
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Aces Per Match
3.63
0.33
3.96
Most Aces in a match
51%
8%
N/A
1+
89%
33%
90%
2+
80%
0%
78%
3+
63%
0%
68%
4+
40%
0%
50%
5+
31%
0%
39%
6+
17%
0%
36%
7+
17%
0%
19%
8+
9%
0%
16%
9+
6%
0%
12%
10+
3%
0%
9%
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Over 0.5
89%
33%
90%
Over 1.5
80%
0%
78%
Over 2.5
63%
0%
68%
Over 3.5
40%
0%
50%
Over 4.5
31%
0%
39%
Over 5.5
23%
0%
36%
Over 6.5
17%
0%
19%
Over 7.5
9%
0%
16%
Over 8.5
6%
0%
12%
Over 9.5
3%
0%
9%
Over 10.5
3%
0%
7%
Over 11.5
0%
0%
7%
Over 12.5
0%
0%
7%
Over 13.5
0%
0%
2%
Over 14.5
0%
0%
2%
Over 15.5
0%
0%
2%
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
Sofia Costoulas
Tatiana Pieri
Match Total
Under 0.5
11%
67%
10%
Under 1.5
20%
100%
23%
Under 2.5
37%
100%
32%
Under 3.5
60%
100%
51%
Under 4.5
69%
100%
62%
Under 5.5
77%
100%
65%
Under 6.5
83%
100%
82%
Under 7.5
91%
100%
85%
Under 8.5
94%
100%
89%
Under 9.5
97%
100%
92%
Under 10.5
97%
100%
93%
Under 11.5
100%
100%
93%
Under 12.5
100%
100%
93%
Under 13.5
100%
100%
99%
Under 14.5
100%
100%
99%
Match Total Games - Over/Under
2026 Calendar Year
Last 12 Months
Total Games In A Set
3 Set Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Average
Average Games in a Set
9.03
8.86
8.95
Over 6.5
92%
90%
91%
Over 7.5
75%
67%
71%
Over 8.5
58%
52%
55%
Over 9.5
39%
43%
41%
Over 10.5
11%
19%
15%
Over 11.5
11%
19%
15%
Over 12.5
6%
5%
6%
Data Point
Sofia Costoulas
Tatiana Pieri
Average
Over 12.5
97%
90%
94%
Over 13.5
92%
90%
91%
Over 14.5
86%
81%
84%
Over 15.5
78%
71%
75%
Over 16.5
69%
57%
63%
Over 17.5
61%
52%
57%
Over 18.5
56%
43%
50%
Over 19.5
42%
33%
38%
Over 20.5
39%
29%
34%
Over 21.5
33%
29%
31%
Over 22.5
33%
14%
24%
Over 23.5
33%
14%
24%
Over 24.5
33%
14%
24%
Over 25.5
31%
14%
23%
Over 26.5
25%
14%
20%
Over 27.5
19%
14%
17%
Over 28.5
11%
14%
13%
Over 29.5
11%
14%
13%
Total Games In A Set
3 Set Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Average
Average Games in a Set
9.04
8.75
8.9
Over 6.5
93%
90%
92%
Over 7.5
75%
71%
73%
Over 8.5
54%
48%
51%
Over 9.5
35%
38%
37%
Over 10.5
15%
19%
17%
Over 11.5
15%
19%
17%
Over 12.5
7%
7%
7%
Data Point
Sofia Costoulas
Tatiana Pieri
Average
Over 12.5
96%
93%
95%
Over 13.5
93%
90%
92%
Over 14.5
87%
86%
87%
Over 15.5
82%
74%
78%
Over 16.5
73%
57%
65%
Over 17.5
62%
48%
55%
Over 18.5
56%
43%
50%
Over 19.5
45%
38%
42%
Over 20.5
44%
33%
39%
Over 21.5
38%
33%
36%
Over 22.5
35%
21%
28%
Over 23.5
32%
17%
25%
Over 24.5
31%
17%
24%
Over 25.5
28%
17%
23%
Over 26.5
24%
14%
19%
Over 27.5
21%
14%
18%
Over 28.5
13%
14%
14%
Over 29.5
10%
12%
11%
Break of Serve (Break Points Won) - Over/Under
2026 Calendar Year
Last 12 Months
3 Set Matches
Breaks Per Set
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Breaks Per Match
2.71
8.5
11.21
Over 0.5
100%
100%
100%
Over 1.5
71%
100%
100%
Over 2.5
42%
100%
100%
Over 3.5
29%
100%
98%
Over 4.5
17%
100%
82%
Over 5.5
0%
75%
77%
Over 6.5
0%
75%
59%
Over 7.5
0%
75%
57%
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Average Break-Points Converted (Set 1)
1.08
5
6.08
Average Break-Points Converted (Set 2)
1.04
3.5
4.54
Average Break-Points Converted (Set 3)
1.36
4
5.36
will Break Serve %
52%
55%
N/A
will not Break Serve %
29%
45%
N/A
Over 0.5
96%
100%
100%
Over 1.5
29%
100%
84%
Over 2.5
4%
100%
71%
Over 3.5
0%
100%
52%
Over 4.5
0%
75%
52%
Over 5.5
0%
75%
50%
Over 6.5
0%
0%
50%
Over 7.5
0%
0%
50%
Breaks Per Set data uses Set 1 as a sample.
3 Set Matches
Breaks Per Set
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Breaks Per Match
3.04
4.67
7.71
Over 0.5
100%
100%
100%
Over 1.5
80%
100%
100%
Over 2.5
49%
92%
100%
Over 3.5
34%
83%
95%
Over 4.5
20%
42%
83%
Over 5.5
6%
42%
80%
Over 6.5
6%
33%
63%
Over 7.5
3%
0%
37%
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Average Break-Points Converted (Set 1)
1.26
2.12
3.38
Average Break-Points Converted (Set 2)
1.24
1.79
3.03
Average Break-Points Converted (Set 3)
1.32
1.6
2.92
will Break Serve %
53%
55%
N/A
will not Break Serve %
34%
50%
N/A
Over 0.5
94%
100%
99%
Over 1.5
34%
50%
87%
Over 2.5
6%
33%
72%
Over 3.5
3%
8%
52%
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
Sofia Costoulas
Tatiana Pieri
Match Total
Double Faults Per Match
2.88
1.75
4.63
Over 0.5 (1+)
88%
75%
100%
Over 1.5 (2+)
75%
50%
73%
Over 2.5 (3+)
38%
25%
59%
Over 3.5 (4+)
25%
25%
48%
Over 4.5 (5+)
21%
0%
42%
Over 5.5 (6+)
13%
0%
32%
Over 6.5 (7+)
13%
0%
11%
Over 7.5 (8+)
8%
0%
9%
Over 8.5 (9+)
8%
0%
7%
Over 9.5 (10+)
0%
0%
7%
Over 10.5 (11+)
0%
0%
7%
3 Set Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Double Faults Per Match
2.57
2.33
4.9
Over 0.5 (1+)
89%
92%
100%
Over 1.5 (2+)
69%
58%
90%
Over 2.5 (3+)
37%
50%
85%
Over 3.5 (4+)
20%
25%
71%
Over 4.5 (5+)
14%
8%
59%
Over 5.5 (6+)
9%
0%
41%
Over 6.5 (7+)
9%
0%
26%
Over 7.5 (8+)
6%
0%
23%
Over 8.5 (9+)
6%
0%
20%
Over 9.5 (10+)
0%
0%
11%
Over 10.5 (11+)
0%
0%
10%
Tie Breaks - Over/Under
2026 Calendar Year
Last 12 Months
3 Set Matches
Data Point
Sofia Costoulas
(Match)
(Match)
Tatiana Pieri
(Match)
(Match)
Average
Tie Breaks Per Match
0.22
0.05
0.13
Over 0.5
17%
5%
11%
Over 1.5
6%
0%
3%
Over 2.5
0%
0%
0%
Under 0.5
83%
95%
11%
Under 1.5
94%
100%
3%
Under 2.5
100%
100%
0%
3 Set Matches
Data Point
Sofia Costoulas
(Match)
(Match)
Tatiana Pieri
(Match)
(Match)
Average
Tie Breaks Per Match
0.21
0.07
0.14
Over 0.5
18%
7%
13%
Over 1.5
3%
0%
1%
Over 2.5
0%
0%
0%
Under 0.5
18%
7%
13%
Under 1.5
3%
0%
1%
Under 2.5
0%
0%
0%
Net Points Won - Over/Under
2026 Calendar Year
Last 12 Months
3 Set Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Net Points Won Per Match
9.5
N/A
N/A
Over 4.5 (5+)
100%
N/A
N/A
Over 5.5 (6+)
100%
N/A
N/A
Over 6.5 (7+)
25%
N/A
N/A
Over 7.5 (8+)
25%
N/A
N/A
Over 8.5 (9+)
25%
N/A
N/A
Over 9.5 (10+)
25%
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 (12+)
0%
N/A
N/A
3 Set Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Net Points Won Per Match
9.67
N/A
N/A
Over 4.5 (5+)
100%
N/A
N/A
Over 5.5 (6+)
100%
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+)
50%
N/A
N/A
Over 9.5 (10+)
50%
N/A
N/A
Over 10.5 (11+)
33%
N/A
N/A
Over 11.5 (12+)
0%
N/A
N/A
Over 14.5 (15+)
0%
N/A
N/A
Head-to-Head (Hard Courts)
Performance
Profile
Data Point
Sofia Costoulas
Tatiana Pieri
Wins
H2H
H2H
0(0%)
0(0%)
Sets Won
H2H
H2H
0(0%)
0(0%)
Win Percentage
2026 Calendar Year
2026 Calendar Year
75.0%15 / 20 Matches
66.7%2 / 3 Matches
Win Percentage
Last 12 Months
Last 12 Months
64.4%29 / 45 Matches
66.7%2 / 3 Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Main Hand
Right-handed
Age
21
27
Birthday
April 2, 2005
March 29, 1999
Height
-m
-m
Weight
-kg
-kg
Win Percentage (Hard Courts)
2026 Calendar Year
Last 12 Months
Data Point
Sofia Costoulas
Tatiana Pieri
Match Wins
75%
67%
Match Wins (3 Sets)
75%
67%
Wins in Straight Sets
45%
33%
Wins From Behind
29%
50%
Won At Least 1 Set
80%
67%
Set 1 Win
70%
33%
Set 2 Win
55%
67%
Set 3 Win
86%
100%
Data Point
Sofia Costoulas
Tatiana Pieri
Match Wins
64%
67%
Match Wins (3 Sets)
64%
67%
Wins in Straight Sets
42%
33%
Wins From Behind
20%
50%
Won At Least 1 Set
78%
67%
Set 1 Win
67%
33%
Set 2 Win
55%
67%
Set 3 Win
63%
100%
Aces (Hard Courts)
2026 Calendar Year
Last 12 Months
Milestones
Over
Under
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Aces Per Match
4.25
N/A
N/A
Most Aces in a match
50%
N/A
N/A
1+
92%
N/A
N/A
2+
83%
N/A
N/A
3+
67%
N/A
N/A
4+
42%
N/A
N/A
5+
33%
N/A
N/A
6+
33%
N/A
N/A
7+
33%
N/A
N/A
8+
17%
N/A
N/A
9+
8%
N/A
N/A
10+
8%
N/A
N/A
15+
0%
N/A
N/A
20+
0%
N/A
N/A
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Over 0.5
92%
N/A
N/A
Over 1.5
83%
N/A
N/A
Over 2.5
67%
N/A
N/A
Over 3.5
42%
N/A
N/A
Over 4.5
33%
N/A
N/A
Over 5.5
33%
N/A
N/A
Over 6.5
33%
N/A
N/A
Over 7.5
17%
N/A
N/A
Over 8.5
8%
N/A
N/A
Over 9.5
8%
N/A
N/A
Over 10.5
8%
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
Sofia Costoulas
Tatiana Pieri
Match Total
Under 0.5
8%
N/A
N/A
Under 1.5
17%
N/A
N/A
Under 2.5
33%
N/A
N/A
Under 3.5
58%
N/A
8%
Under 4.5
67%
N/A
16%
Under 5.5
67%
N/A
16%
Under 6.5
67%
N/A
29%
Under 7.5
83%
N/A
29%
Under 8.5
92%
N/A
37%
Under 9.5
92%
N/A
46%
Under 10.5
92%
N/A
46%
Under 11.5
100%
N/A
46%
Under 12.5
100%
N/A
46%
Under 13.5
100%
N/A
46%
Under 14.5
100%
N/A
46%
Milestones
Over
Under
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Aces Per Match
3.91
N/A
N/A
Most Aces in a match
51%
8%
N/A
1+
91%
N/A
50%
2+
82%
N/A
50%
3+
64%
N/A
43%
4+
45%
N/A
38%
5+
36%
N/A
34%
6+
23%
N/A
32%
7+
23%
N/A
22%
8+
9%
N/A
18%
9+
5%
N/A
11%
10+
5%
N/A
7%
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Over 0.5
91%
N/A
50%
Over 1.5
82%
N/A
50%
Over 2.5
64%
N/A
43%
Over 3.5
45%
N/A
38%
Over 4.5
36%
N/A
34%
Over 5.5
27%
N/A
32%
Over 6.5
23%
N/A
22%
Over 7.5
9%
N/A
18%
Over 8.5
5%
N/A
11%
Over 9.5
5%
N/A
7%
Over 10.5
5%
N/A
7%
Over 11.5
0%
N/A
7%
Over 12.5
0%
N/A
7%
Over 13.5
0%
N/A
2%
Over 14.5
0%
N/A
2%
Over 15.5
0%
N/A
2%
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
Sofia Costoulas
Tatiana Pieri
Match Total
Under 0.5
9%
N/A
N/A
Under 1.5
18%
N/A
N/A
Under 2.5
36%
N/A
7%
Under 3.5
55%
N/A
11%
Under 4.5
64%
N/A
16%
Under 5.5
73%
N/A
18%
Under 6.5
77%
N/A
27%
Under 7.5
91%
N/A
32%
Under 8.5
95%
N/A
38%
Under 9.5
95%
N/A
43%
Under 10.5
95%
N/A
43%
Under 11.5
100%
N/A
43%
Under 12.5
100%
N/A
43%
Under 13.5
100%
N/A
47%
Under 14.5
100%
N/A
47%
Match Total Games (Hard Courts)
2026 Calendar Year
Last 12 Months
Total Games In A Set
3 Set Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Average
Average Games in a Set
9.03
8.86
8.95
Over 6.5
92%
90%
91%
Over 7.5
75%
67%
71%
Over 8.5
58%
52%
55%
Over 9.5
39%
43%
41%
Over 10.5
11%
19%
15%
Over 11.5
11%
19%
15%
Over 12.5
6%
5%
6%
Data Point
Sofia Costoulas
Tatiana Pieri
Average
Over 12.5
97%
90%
94%
Over 13.5
92%
90%
91%
Over 14.5
86%
81%
84%
Over 15.5
78%
71%
75%
Over 16.5
69%
57%
63%
Over 17.5
61%
52%
57%
Over 18.5
56%
43%
50%
Over 19.5
42%
33%
38%
Over 20.5
39%
29%
34%
Over 21.5
33%
29%
31%
Over 22.5
33%
14%
24%
Over 23.5
33%
14%
24%
Over 24.5
33%
14%
24%
Over 25.5
31%
14%
23%
Over 26.5
25%
14%
20%
Over 27.5
19%
14%
17%
Over 28.5
11%
14%
13%
Over 29.5
11%
14%
13%
Total Games In A Set
3 Set Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Average
Average Games in a Set
9.04
8.75
8.9
Over 6.5
93%
90%
92%
Over 7.5
75%
71%
73%
Over 8.5
54%
48%
51%
Over 9.5
35%
38%
37%
Over 10.5
15%
19%
17%
Over 11.5
15%
19%
17%
Over 12.5
7%
7%
7%
Data Point
Sofia Costoulas
Tatiana Pieri
Average
Over 12.5
96%
93%
95%
Over 13.5
93%
90%
92%
Over 14.5
87%
86%
87%
Over 15.5
82%
74%
78%
Over 16.5
73%
57%
65%
Over 17.5
62%
48%
55%
Over 18.5
56%
43%
50%
Over 19.5
45%
38%
42%
Over 20.5
44%
33%
39%
Over 21.5
38%
33%
36%
Over 22.5
35%
21%
28%
Over 23.5
32%
17%
25%
Over 24.5
31%
17%
24%
Over 25.5
28%
17%
23%
Over 26.5
24%
14%
19%
Over 27.5
21%
14%
18%
Over 28.5
13%
14%
14%
Over 29.5
10%
12%
11%
Break Points Won (Hard Courts)
2026 Calendar Year
Last 12 Months
3 Set Matches
Breaks Per Set
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Breaks Per Match
2.92
N/A
N/A
Over 0.5
100%
N/A
N/A
Over 1.5
92%
N/A
N/A
Over 2.5
83%
N/A
N/A
Over 3.5
58%
N/A
N/A
Over 4.5
33%
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
Sofia Costoulas
Tatiana Pieri
Match Total
Average Break-Points Converted (Set 1)
1.17
N/A
N/A
Average Break-Points Converted (Set 2)
1.33
N/A
N/A
Average Break-Points Converted (Set 3)
1.25
N/A
N/A
will Break Serve %
47%
N/A
N/A
will not Break Serve %
25%
N/A
N/A
Over 0.5
92%
N/A
N/A
Over 1.5
58%
N/A
N/A
Over 2.5
8%
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
Breaks Per Set
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Breaks Per Match
3.34
N/A
2.34
Over 0.5
100%
N/A
50%
Over 1.5
95%
N/A
50%
Over 2.5
77%
N/A
50%
Over 3.5
55%
N/A
41%
Over 4.5
32%
N/A
36%
Over 5.5
9%
N/A
32%
Over 6.5
9%
N/A
20%
Over 7.5
5%
N/A
18%
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Average Break-Points Converted (Set 1)
1.36
N/A
3.38
Average Break-Points Converted (Set 2)
1.52
N/A
3.03
Average Break-Points Converted (Set 3)
1.25
N/A
2.92
will Break Serve %
51%
N/A
N/A
will not Break Serve %
31%
N/A
N/A
Over 0.5
91%
N/A
99%
Over 1.5
55%
N/A
87%
Over 2.5
9%
N/A
72%
Over 3.5
5%
N/A
52%
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
Sofia Costoulas
Tatiana Pieri
Match Total
Double Faults Per Match
2
N/A
N/A
Over 0.5 (1+)
92%
N/A
N/A
Over 1.5 (2+)
75%
N/A
N/A
Over 2.5 (3+)
25%
N/A
N/A
Over 3.5 (4+)
8%
N/A
N/A
Over 4.5 (5+)
0%
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
3 Set Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Double Faults Per Match
1.95
N/A
N/A
Over 0.5 (1+)
91%
N/A
N/A
Over 1.5 (2+)
64%
N/A
N/A
Over 2.5 (3+)
32%
N/A
N/A
Over 3.5 (4+)
9%
N/A
N/A
Over 4.5 (5+)
0%
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
Tie Breaks (Hard Courts)
2026 Calendar Year
Last 12 Months
3 Set Matches
Data Point
Sofia Costoulas
(Match)
(Match)
Tatiana Pieri
(Match)
(Match)
Average
Tie Breaks Per Match
0.25
0
0.13
Over 0.5
10%
0%
5%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
90%
100%
95%
Under 1.5
100%
100%
100%
Under 2.5
100%
100%
100%
3 Set Matches
Data Point
Sofia Costoulas
(Match)
(Match)
Tatiana Pieri
(Match)
(Match)
Average
Tie Breaks Per Match
0.22
0
0.14
Over 0.5
9%
0%
5%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
91%
100%
96%
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
Sofia Costoulas
Tatiana Pieri
Match Total
Net Points Won Per Match
11.5
N/A
N/A
Over 4.5 (5+)
100%
N/A
N/A
Over 5.5 (6+)
100%
N/A
N/A
Over 6.5 (7+)
100%
N/A
N/A
Over 7.5 (8+)
100%
N/A
N/A
Over 8.5 (9+)
100%
N/A
N/A
Over 9.5 (10+)
100%
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 (12+)
0%
N/A
N/A
3 Set Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Net Points Won Per Match
11.25
N/A
N/A
Over 4.5 (5+)
100%
N/A
N/A
Over 5.5 (6+)
100%
N/A
N/A
Over 6.5 (7+)
100%
N/A
N/A
Over 7.5 (8+)
100%
N/A
N/A
Over 8.5 (9+)
100%
N/A
N/A
Over 9.5 (10+)
100%
N/A
N/A
Over 10.5 (11+)
50%
N/A
N/A
Over 11.5 (12+)
0%
N/A
N/A
Over 14.5 (15+)
0%
N/A
N/A
Head-to-Head (Clay Courts)
Performance
Profile
Data Point
Sofia Costoulas
Tatiana Pieri
Wins
H2H
H2H
1(100.0%)
0(0.0%)
Sets Won
H2H
H2H
2(100.0%)
0(0.0%)
Win Percentage
2026 Calendar Year
2026 Calendar Year
56.3%9 / 16 Matches
33.3%6 / 18 Matches
Win Percentage
Last 12 Months
Last 12 Months
64.0%16 / 25 Matches
38.5%15 / 39 Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Main Hand
Right-handed
Age
21
27
Birthday
April 2, 2005
March 29, 1999
Height
-m
-m
Weight
-kg
-kg
Win Percentage (Clay Courts)
2026 Calendar Year
Last 12 Months
Data Point
Sofia Costoulas
Tatiana Pieri
Match Wins
56%
33%
Match Wins (3 Sets)
56%
33%
Wins in Straight Sets
44%
17%
Wins From Behind
14%
14%
Won At Least 1 Set
75%
39%
Set 1 Win
63%
28%
Set 2 Win
56%
29%
Set 3 Win
50%
75%
Data Point
Sofia Costoulas
Tatiana Pieri
Match Wins
64%
38%
Match Wins (3 Sets)
64%
38%
Wins in Straight Sets
48%
26%
Wins From Behind
11%
14%
Won At Least 1 Set
76%
51%
Set 1 Win
68%
36%
Set 2 Win
56%
43%
Set 3 Win
67%
50%
Aces (Clay Courts)
2026 Calendar Year
Last 12 Months
Milestones
Over
Under
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Aces Per Match
3.00
0.25
3.25
Most Aces in a match
50%
0%
N/A
1+
83%
25%
96%
2+
75%
0%
96%
3+
58%
0%
79%
4+
25%
0%
46%
5+
17%
0%
46%
6+
8%
0%
42%
7+
8%
0%
9%
8+
8%
0%
9%
9+
8%
0%
9%
10+
0%
0%
9%
15+
0%
0%
0%
20+
0%
0%
0%
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Over 0.5
83%
25%
96%
Over 1.5
75%
0%
96%
Over 2.5
58%
0%
79%
Over 3.5
25%
0%
46%
Over 4.5
17%
0%
46%
Over 5.5
17%
0%
42%
Over 6.5
8%
0%
9%
Over 7.5
8%
0%
9%
Over 8.5
8%
0%
9%
Over 9.5
0%
0%
9%
Over 10.5
0%
0%
4%
Over 11.5
0%
0%
4%
Over 12.5
0%
0%
4%
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
Sofia Costoulas
Tatiana Pieri
Match Total
Under 0.5
17%
75%
4%
Under 1.5
25%
100%
4%
Under 2.5
42%
100%
21%
Under 3.5
75%
100%
54%
Under 4.5
83%
100%
54%
Under 5.5
83%
100%
59%
Under 6.5
92%
100%
92%
Under 7.5
92%
100%
92%
Under 8.5
92%
100%
92%
Under 9.5
100%
100%
92%
Under 10.5
100%
100%
96%
Under 11.5
100%
100%
96%
Under 12.5
100%
100%
96%
Under 13.5
100%
100%
100%
Under 14.5
100%
100%
100%
Milestones
Over
Under
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Aces Per Match
3
0.33
3.33
Most Aces in a match
51%
8%
N/A
1+
83%
33%
88%
2+
75%
0%
75%
3+
58%
0%
67%
4+
25%
0%
38%
5+
17%
0%
30%
6+
8%
0%
25%
7+
8%
0%
9%
8+
8%
0%
9%
9+
8%
0%
9%
10+
0%
0%
9%
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Over 0.5
83%
33%
88%
Over 1.5
75%
0%
75%
Over 2.5
58%
0%
67%
Over 3.5
25%
0%
38%
Over 4.5
17%
0%
30%
Over 5.5
17%
0%
25%
Over 6.5
8%
0%
9%
Over 7.5
8%
0%
9%
Over 8.5
8%
0%
9%
Over 9.5
0%
0%
9%
Over 10.5
0%
0%
4%
Over 11.5
0%
0%
4%
Over 12.5
0%
0%
4%
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
Sofia Costoulas
Tatiana Pieri
Match Total
Under 0.5
17%
67%
13%
Under 1.5
25%
100%
25%
Under 2.5
42%
100%
34%
Under 3.5
75%
100%
63%
Under 4.5
83%
100%
71%
Under 5.5
83%
100%
75%
Under 6.5
92%
100%
92%
Under 7.5
92%
100%
92%
Under 8.5
92%
100%
92%
Under 9.5
100%
100%
92%
Under 10.5
100%
100%
96%
Under 11.5
100%
100%
96%
Under 12.5
100%
100%
96%
Under 13.5
100%
100%
100%
Under 14.5
100%
100%
100%
Match Total Games (Clay Courts)
2026 Calendar Year
Last 12 Months
Total Games In A Set
3 Set Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Average
Average Games in a Set
9.03
8.86
8.95
Over 6.5
92%
90%
91%
Over 7.5
75%
67%
71%
Over 8.5
58%
52%
55%
Over 9.5
39%
43%
41%
Over 10.5
11%
19%
15%
Over 11.5
11%
19%
15%
Over 12.5
6%
5%
6%
Data Point
Sofia Costoulas
Tatiana Pieri
Average
Over 12.5
97%
90%
94%
Over 13.5
92%
90%
91%
Over 14.5
86%
81%
84%
Over 15.5
78%
71%
75%
Over 16.5
69%
57%
63%
Over 17.5
61%
52%
57%
Over 18.5
56%
43%
50%
Over 19.5
42%
33%
38%
Over 20.5
39%
29%
34%
Over 21.5
33%
29%
31%
Over 22.5
33%
14%
24%
Over 23.5
33%
14%
24%
Over 24.5
33%
14%
24%
Over 25.5
31%
14%
23%
Over 26.5
25%
14%
20%
Over 27.5
19%
14%
17%
Over 28.5
11%
14%
13%
Over 29.5
11%
14%
13%
Total Games In A Set
3 Set Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Average
Average Games in a Set
9.04
8.75
8.9
Over 6.5
93%
90%
92%
Over 7.5
75%
71%
73%
Over 8.5
54%
48%
51%
Over 9.5
35%
38%
37%
Over 10.5
15%
19%
17%
Over 11.5
15%
19%
17%
Over 12.5
7%
7%
7%
Data Point
Sofia Costoulas
Tatiana Pieri
Average
Over 12.5
96%
93%
95%
Over 13.5
93%
90%
92%
Over 14.5
87%
86%
87%
Over 15.5
82%
74%
78%
Over 16.5
73%
57%
65%
Over 17.5
62%
48%
55%
Over 18.5
56%
43%
50%
Over 19.5
45%
38%
42%
Over 20.5
44%
33%
39%
Over 21.5
38%
33%
36%
Over 22.5
35%
21%
28%
Over 23.5
32%
17%
25%
Over 24.5
31%
17%
24%
Over 25.5
28%
17%
23%
Over 26.5
24%
14%
19%
Over 27.5
21%
14%
18%
Over 28.5
13%
14%
14%
Over 29.5
10%
12%
11%
Break Points Won (Clay Courts)
2026 Calendar Year
Last 12 Months
3 Set Matches
Breaks Per Set
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Breaks Per Match
6
8.5
14.5
Over 0.5
100%
100%
100%
Over 1.5
100%
100%
100%
Over 2.5
100%
100%
100%
Over 3.5
50%
100%
100%
Over 4.5
50%
100%
100%
Over 5.5
50%
75%
100%
Over 6.5
50%
75%
100%
Over 7.5
50%
75%
100%
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Average Break-Points Converted (Set 1)
3.5
5
8.5
Average Break-Points Converted (Set 2)
2.5
3.5
6
Average Break-Points Converted (Set 3)
4.5
4
8.5
will Break Serve %
50%
55%
N/A
will not Break Serve %
50%
45%
N/A
Over 0.5
100%
100%
100%
Over 1.5
50%
100%
100%
Over 2.5
50%
100%
100%
Over 3.5
50%
100%
100%
Over 4.5
50%
75%
100%
Over 5.5
50%
75%
100%
Over 6.5
0%
0%
100%
Over 7.5
0%
0%
50%
Breaks Per Set data uses Set 1 as a sample.
3 Set Matches
Breaks Per Set
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Breaks Per Match
6
4.67
10.67
Over 0.5
100%
100%
100%
Over 1.5
100%
100%
100%
Over 2.5
100%
92%
100%
Over 3.5
50%
83%
100%
Over 4.5
50%
42%
100%
Over 5.5
50%
42%
100%
Over 6.5
50%
33%
100%
Over 7.5
50%
0%
75%
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Average Break-Points Converted (Set 1)
3.5
2.12
3.38
Average Break-Points Converted (Set 2)
2.5
1.79
3.03
Average Break-Points Converted (Set 3)
4.5
1.6
2.92
will Break Serve %
50%
55%
N/A
will not Break Serve %
50%
50%
N/A
Over 0.5
100%
100%
99%
Over 1.5
50%
50%
87%
Over 2.5
50%
33%
72%
Over 3.5
50%
8%
52%
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
Sofia Costoulas
Tatiana Pieri
Match Total
Double Faults Per Match
3.75
1.75
5.5
Over 0.5 (1+)
83%
75%
100%
Over 1.5 (2+)
75%
50%
71%
Over 2.5 (3+)
50%
25%
54%
Over 3.5 (4+)
42%
25%
54%
Over 4.5 (5+)
42%
0%
46%
Over 5.5 (6+)
25%
0%
42%
Over 6.5 (7+)
25%
0%
21%
Over 7.5 (8+)
17%
0%
17%
Over 8.5 (9+)
17%
0%
13%
Over 9.5 (10+)
0%
0%
13%
Over 10.5 (11+)
0%
0%
13%
3 Set Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Double Faults Per Match
3.75
2.33
6.08
Over 0.5 (1+)
83%
92%
100%
Over 1.5 (2+)
75%
58%
88%
Over 2.5 (3+)
50%
50%
79%
Over 3.5 (4+)
42%
25%
75%
Over 4.5 (5+)
42%
8%
63%
Over 5.5 (6+)
25%
0%
50%
Over 6.5 (7+)
25%
0%
34%
Over 7.5 (8+)
17%
0%
29%
Over 8.5 (9+)
17%
0%
25%
Over 9.5 (10+)
0%
0%
17%
Over 10.5 (11+)
0%
0%
17%
Tie Breaks (Clay Courts)
2026 Calendar Year
Last 12 Months
3 Set Matches
Data Point
Sofia Costoulas
(Match)
(Match)
Tatiana Pieri
(Match)
(Match)
Average
Tie Breaks Per Match
0.19
0.06
0.13
Over 0.5
13%
0%
7%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
88%
100%
94%
Under 1.5
100%
100%
100%
Under 2.5
100%
100%
100%
3 Set Matches
Data Point
Sofia Costoulas
(Match)
(Match)
Tatiana Pieri
(Match)
(Match)
Average
Tie Breaks Per Match
0.16
0.08
0.14
Over 0.5
12%
3%
8%
Over 1.5
0%
0%
0%
Over 2.5
0%
0%
0%
Under 0.5
88%
97%
93%
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
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Net Points Won Per Match
8.83
N/A
N/A
Over 4.5 (5+)
100%
N/A
N/A
Over 5.5 (6+)
100%
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
Over 11.5 (12+)
0%
N/A
N/A
Over 14.5 (12+)
0%
N/A
N/A
3 Set Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Net Points Won Per Match
8.83
N/A
N/A
Over 4.5 (5+)
100%
N/A
N/A
Over 5.5 (6+)
100%
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
Over 11.5 (12+)
0%
N/A
N/A
Over 14.5 (15+)
0%
N/A
N/A
Head-to-Head (Grass Courts)
Performance
Profile
Data Point
Sofia Costoulas
Tatiana Pieri
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
0.0%0 / 1 Matches
N/A0 / 0 Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Main Hand
Right-handed
Age
21
27
Birthday
April 2, 2005
March 29, 1999
Height
-m
-m
Weight
-kg
-kg
Win Percentage (Grass Courts)
2026 Calendar Year
Last 12 Months
Data Point
Sofia Costoulas
Tatiana Pieri
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
Data Point
Sofia Costoulas
Tatiana Pieri
Match Wins
0%
N/A
Match Wins (3 Sets)
0%
N/A
Wins in Straight Sets
0%
N/A
Wins From Behind
0%
N/A
Won At Least 1 Set
0%
N/A
Set 1 Win
0%
N/A
Set 2 Win
0%
N/A
Set 3 Win
N/A
N/A
Aces (Grass Courts)
2026 Calendar Year
Last 12 Months
Milestones
Over
Under
Data Point
Sofia Costoulas
Tatiana Pieri
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
Sofia Costoulas
Tatiana Pieri
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
Sofia Costoulas
Tatiana Pieri
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
Sofia Costoulas
Tatiana Pieri
Match Total
Aces Per Match
5
N/A
N/A
Most Aces in a match
51%
8%
N/A
1+
100%
N/A
50%
2+
100%
N/A
50%
3+
100%
N/A
50%
4+
100%
N/A
50%
5+
100%
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
Sofia Costoulas
Tatiana Pieri
Match Total
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
100%
N/A
50%
Over 5.5
0%
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
50%
Over 11.5
0%
N/A
50%
Over 12.5
0%
N/A
50%
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
Sofia Costoulas
Tatiana Pieri
Match Total
Under 0.5
0%
N/A
N/A
Under 1.5
0%
N/A
N/A
Under 2.5
0%
N/A
N/A
Under 3.5
0%
N/A
N/A
Under 4.5
0%
N/A
N/A
Under 5.5
100%
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
N/A
Under 11.5
100%
N/A
N/A
Under 12.5
100%
N/A
N/A
Under 13.5
100%
N/A
50%
Under 14.5
100%
N/A
50%
Match Total Games (Grass Courts)
2026 Calendar Year
Last 12 Months
Total Games In A Set
3 Set Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Average
Average Games in a Set
9.03
8.86
8.95
Over 6.5
92%
90%
91%
Over 7.5
75%
67%
71%
Over 8.5
58%
52%
55%
Over 9.5
39%
43%
41%
Over 10.5
11%
19%
15%
Over 11.5
11%
19%
15%
Over 12.5
6%
5%
6%
Data Point
Sofia Costoulas
Tatiana Pieri
Average
Over 12.5
97%
90%
94%
Over 13.5
92%
90%
91%
Over 14.5
86%
81%
84%
Over 15.5
78%
71%
75%
Over 16.5
69%
57%
63%
Over 17.5
61%
52%
57%
Over 18.5
56%
43%
50%
Over 19.5
42%
33%
38%
Over 20.5
39%
29%
34%
Over 21.5
33%
29%
31%
Over 22.5
33%
14%
24%
Over 23.5
33%
14%
24%
Over 24.5
33%
14%
24%
Over 25.5
31%
14%
23%
Over 26.5
25%
14%
20%
Over 27.5
19%
14%
17%
Over 28.5
11%
14%
13%
Over 29.5
11%
14%
13%
Total Games In A Set
3 Set Matches
Data Point
Sofia Costoulas
Tatiana Pieri
Average
Average Games in a Set
9.04
8.75
8.9
Over 6.5
93%
90%
92%
Over 7.5
75%
71%
73%
Over 8.5
54%
48%
51%
Over 9.5
35%
38%
37%
Over 10.5
15%
19%
17%
Over 11.5
15%
19%
17%
Over 12.5
7%
7%
7%
Data Point
Sofia Costoulas
Tatiana Pieri
Average
Over 12.5
96%
93%
95%
Over 13.5
93%
90%
92%
Over 14.5
87%
86%
87%
Over 15.5
82%
74%
78%
Over 16.5
73%
57%
65%
Over 17.5
62%
48%
55%
Over 18.5
56%
43%
50%
Over 19.5
45%
38%
42%
Over 20.5
44%
33%
39%
Over 21.5
38%
33%
36%
Over 22.5
35%
21%
28%
Over 23.5
32%
17%
25%
Over 24.5
31%
17%
24%
Over 25.5
28%
17%
23%
Over 26.5
24%
14%
19%
Over 27.5
21%
14%
18%
Over 28.5
13%
14%
14%
Over 29.5
10%
12%
11%
Break Points Won (Grass Courts)
2026 Calendar Year
Last 12 Months
3 Set Matches
Breaks Per Set
Data Point
Sofia Costoulas
Tatiana Pieri
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
Sofia Costoulas
Tatiana Pieri
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
Sofia Costoulas
Tatiana Pieri
Match Total
Breaks Per Match
3
N/A
2
Over 0.5
100%
N/A
50%
Over 1.5
100%
N/A
50%
Over 2.5
0%
N/A
50%
Over 3.5
0%
N/A
50%
Over 4.5
0%
N/A
50%
Over 5.5
0%
N/A
50%
Over 6.5
0%
N/A
N/A
Over 7.5
0%
N/A
N/A
Data Point
Sofia Costoulas
Tatiana Pieri
Match Total
Average Break-Points Converted (Set 1)
2
N/A
3.38
Average Break-Points Converted (Set 2)
1
N/A
3.03
Average Break-Points Converted (Set 3)
N/A
N/A
2.92
will Break Serve %
50%
N/A
N/A
will not Break Serve %
100%
N/A
N/A
Over 0.5
100%
N/A
99%
Over 1.5
0%
N/A
87%
Over 2.5
0%
N/A
72%
Over 3.5
0%
N/A
52%
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
Sofia Costoulas
Tatiana Pieri
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
Sofia Costoulas
Tatiana Pieri
Match Total
Double Faults Per Match
2
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+)
0%
N/A
N/A
Over 3.5 (4+)
0%
N/A
N/A
Over 4.5 (5+)
0%
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
Tie Breaks (Grass Courts)
2026 Calendar Year
Last 12 Months
3 Set Matches
Data Point
Sofia Costoulas
(Match)
(Match)
Tatiana Pieri
(Match)
(Match)
Average
Tie Breaks Per Match
N/A
N/A
0.13
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
Sofia Costoulas
(Match)
(Match)
Tatiana Pieri
(Match)
(Match)
Average
Tie Breaks Per Match
1
N/A
0.14
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%
Net Points Won (Grass Courts)
2026 Calendar Year
Last 12 Months
3 Set Matches
Data Point
Sofia Costoulas
Tatiana Pieri
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
Sofia Costoulas
Tatiana Pieri
Match Total
Net Points Won Per Match
9
N/A
N/A
Over 4.5 (5+)
100%
N/A
N/A
Over 5.5 (6+)
100%
N/A
N/A
Over 6.5 (7+)
100%
N/A
N/A
Over 7.5 (8+)
100%
N/A
N/A
Over 8.5 (9+)
100%
N/A
N/A
Over 9.5 (10+)
100%
N/A
N/A
Over 10.5 (11+)
100%
N/A
N/A
Over 11.5 (12+)
0%
N/A
N/A
Over 14.5 (15+)
0%
N/A
N/A
Latest Results For Sofia Costoulas
Date
Tournament
Player
Opponent
Total Sets
Sofia Costoulas
14 - 9
Opponent
Total Wins
Sofia Costoulas
5 - 5
Opponent
Win Percentage
Sofia Costoulas
50% - 50%
Opponent
Latest Results For Tatiana Pieri
Date
Tournament
Player
Opponent
Total Sets
Tatiana Pieri
7 - 15
Opponent
Total Wins
Tatiana Pieri
4 - 6
Opponent
Win Percentage
Tatiana Pieri
40% - 60%
Opponent
Ranking
Elo
Ranking
Elo
Ranking
Elo