H2H data updated: 2026-09-13 00:00 UTC

Zeynep Sonmez vs Sayaka Ishii H2H: 0-1

Sayaka Ishii holds a 1–0 lead over Zeynep Sonmez in their WTA head-to-head. Across 1 main-draw meeting, Sayaka Ishii leads 1–0 on hard courts. Most recently, Sayaka Ishii won the 2024 Pan Pacific Open second round 4-6 6-2 6-3.

Turkey Age 24 Right-Handed 170 cm / 5'7"
H2H
0 1
1 main-draw meetings
Japan Age 21 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Sayaka Ishii #279 4-6 6-2 6-3 Zeynep Sonmez #148 Match data Oct 25, 2024* R16 Pan Pacific Open WTA 500 Hard

Estimated match date where the exact historical date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.

Career Comparison

Player Current Peak Pts Elo W L Win % GS 1000 including documented historical predecessor categories Finals 500 including documented historical predecessor categories 250 including documented historical predecessor categories Titles
Zeynep Sonmez #53 #48 1,134 1,814 38 41 48.1% 0 0 0 0 1 1
Sayaka Ishii #466 #188 376 1,580 2 3 40.0% 0 0 0 0 0 0

Career Progression by Age

Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.

Age Zeynep Sonmez Sayaka Ishii
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 2024 2–2 50.0% #196 1,571 0 0
19 2025 0–1 0.0% #398 1,565 0 0
21 2023 0–2 0.0% #164 1,561 0 0
22 2024 9–7 56.2% #88 1,733 0 1
23 2025 10–13 43.5% #112 1,677 0 1
24 2026 19–19 50.0% #53 1,776 0 1

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.

Age Zeynep Sonmez Sayaka Ishii
Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Pressure+ Schedule Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Pressure+ Schedule
16 2022 1480 95.5
17 2019 1482 95.3 2023 1472 99.9
18 2024 1572 119.4 +0.69 +1.59 1.162 53.4% +18 62.5% +1.50 1–1 1–1 +0.19
19 2021 1468 96.4 2025 1566 99.7 +0.48 +0.58 0.508 35.7% 0.0% -4.50 -0.08
20 2022 1459 96.3 2026 1499 94.6
21 2023 1561 107.6 -2.06 -0.65 0.913 47.5% 20.0% -1.00 0–1 -0.30
22 2024 1733 119.7 -1.43 -0.89 0.924 48.2% -14 48.7% -0.26 6–1 (86%) 3–0 (100%) 109.3 +0.77
23 2025 1677 131.1 -1.67 +0.73 0.978 49.5% 0 -89 +73 46.2% -0.37 2–4 (33%) 2–3 (40%) 97.0 +0.01
24 2026 1776 134.6 -1.20 +0.52 0.990 49.5% -47 -117 +75 46.6% -0.23 9–5 (64%) 6–3 (67%) 107.5 +0.41
Career 1814 129.2 -1.39 +0.23 0.969 49.2% -23 -108 +75 46.2% -0.30 17–11 (61%) 11–6 (65%) 110.0 +1.14 1580 107.6 +0.64 +1.34 0.955 48.9% +18 50.0% +0.30 1–1 1–1 +2.75

Career Rivalries

Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.