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

Zeynep Sonmez vs Katie Volynets H2H: 2-0

Zeynep Sonmez holds a 2–0 lead over Katie Volynets in their WTA head-to-head. Across 2 main-draw meetings, Zeynep Sonmez leads 1–0 on grass and 1–0 on hard courts. Most recently, Zeynep Sonmez won the 2026 Libéma Open first round 6-3 2-6 6-3.

Turkey Age 24 Right-Handed 170 cm / 5'7"
H2H
2 0
2 main-draw meetings
United States Age 24 Right-Handed 170 cm / 5'7"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Zeynep Sonmez #67 6-3 2-6 6-3 Katie Volynets #101 Match data Jun 9, 2026 R32 Libéma Open WTA 250 Grass
Zeynep Sonmez #81 6-3 6-4 Katie Volynets #109 Match data Aug 25, 2025 R128 US Open Grand Slam Hard

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
Katie Volynets #78 #56 1,042 1,823 43 82 34.4% 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 Katie Volynets
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 2019 0–2 0.0% #394 1,482 0 0
18 2020 1–1 50.0% #316 1,459 0 0
19 2021 0–6 0.0% #180 1,398 0 0
20 2022 2–6 25.0% #114 1,447 0 0
21 2023 0–2 0.0% #164 1,561 0 0 2023 7–13 35.0% #108 1,540 0 0
22 2024 9–7 56.2% #88 1,733 0 1 2024 13–17 43.3% #58 1,713 0 0
23 2025 10–13 43.5% #112 1,677 0 1 2025 11–21 34.4% #93 1,751 0 0
24 2026 19–19 50.0% #53 1,776 0 1 2026 9–16 36.0% #78 1,815 0 0

Surface Results by Age

Seasons are aligned by the age each player spent most of that calendar year. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.

Age Zeynep Sonmez Katie Volynets
Yr HardClayGrass Yr HardClayGrass
W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win %
17 2019 0 2 2 0.0%
18 2020 1 1 2 50.0%
19 2021 0 3 3 0.0% 0 1 1 0.0% 0 2 2 0.0%
20 2022 1 3 4 25.0% 1 2 3 33.3% 0 1 1 0.0%
21 2023 0 1 1 0.0% 0 1 1 0.0% 2023 7 7 14 50.0% 0 3 3 0.0% 0 3 3 0.0%
22 2024 8 4 12 66.7% 0 2 2 0.0% 1 1 2 50.0% 2024 9 13 22 40.9% 3 3 6 50.0% 1 1 2 50.0%
23 2025 7 9 16 43.8% 1 3 4 25.0% 2 1 3 66.7% 2025 6 14 20 30.0% 4 5 9 44.4% 1 2 3 33.3%
24 2026 9 11 20 45.0% 4 4 8 50.0% 6 4 10 60.0% 2026 6 9 15 40.0% 2 5 7 28.6% 1 2 3 33.3%
Career 24 24 48 50.0% 5 10 15 33.3% 9 7 16 56.2% 30 52 82 36.6% 10 19 29 34.5% 3 11 14 21.4%

Performance Progression by Age

Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 72/79 of Zeynep Sonmez's and 118/125 of Katie Volynets's main draw matches. Sample is shown as matches with detailed serve and return statistics / total main draw matches. Bold green marks the stronger value when both stat samples contain at least 5 matches; lower is better for DFs/M.

Age Zeynep Sonmez Katie Volynets
Yr Sample Aces/M DFs/M 1st Sv% 1st Pts% 2nd Pts% BP Saved% BP Conv% Svc Pts% Ret Pts% Yr Sample Aces/M DFs/M 1st Sv% 1st Pts% 2nd Pts% BP Saved% BP Conv% Svc Pts% Ret Pts%
17 —/— 2019 2/2 2.0 2.0 65.1% 60.3% 41.0% 43.8% 60.0% 53.8% 33.7%
18 —/— 2020 2/2 0.0 9.5 71.4% 67.0% 35.0% 31.3% 34.9% 57.7% 44.1%
19 —/— 2021 6/6 0.8 2.8 73.8% 54.6% 45.5% 54.2% 38.4% 52.0% 39.5%
20 —/— 2022 8/8 0.5 2.8 72.9% 51.4% 45.1% 49.4% 37.2% 49.5% 46.1%
21 2023 2/2 0.0 3.5 67.7% 61.2% 40.9% 41.8% 25.0% 55.5% 40.6% 2023 20/20 1.5 3.2 68.6% 56.2% 42.4% 44.6% 49.0% 51.9% 42.1%
22 2024 16/16 0.8 4.4 61.2% 58.1% 44.5% 52.2% 49.5% 53.1% 43.3% 2024 30/30 0.9 1.4 76.8% 57.1% 45.3% 49.5% 48.6% 54.4% 44.7%
23 2025 18/23 0.4 3.7 56.0% 61.9% 44.9% 47.0% 56.4% 54.3% 44.7% 2025 25/32 0.8 0.6 78.7% 55.1% 44.2% 45.7% 51.7% 52.6% 46.0%
24 2026 36/38 1.1 2.6 61.5% 60.3% 47.6% 51.8% 46.5% 55.4% 44.2% 2026 25/25 1.5 1.6 75.4% 58.3% 43.1% 52.5% 49.0% 55.0% 44.0%
Career 72/79 0.8 3.3 60.2% 60.2% 46.1% 50.4% 49.0% 54.6% 44.0% 118/125 1.1 1.9 74.8% 56.5% 43.9% 48.3% 48.1% 53.3% 44.0%

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 Katie Volynets
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
17 2019 1482 95.3 2019 1483 107.7 +0.23 +0.26 0.729 44.0% 20.0% -2.20 0–1 1–1 -0.21
18 2020 1460 100.3 -0.09 +1.26 1.043 50.2% 60.0% -0.20 0–1 1–0 +0.13
19 2021 1468 96.4 2021 1398 99.1 -2.67 -2.35 0.822 45.9% +23 14.3% -1.86 0–2 0–2 +0.04
20 2022 1459 96.3 2022 1447 110.2 -2.55 +1.86 0.911 47.8% +8 +8 33.3% -0.90 2–3 (40%) 0–1 -0.02
21 2023 1561 107.6 -2.06 -0.65 0.913 47.5% 20.0% -1.00 0–1 -0.30 2023 1541 114.9 -3.95 -1.09 0.875 47.1% -2 +23 -130 36.7% -0.82 5–4 (56%) 0–1 +0.32
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 2024 1713 132.0 -1.58 +1.87 0.979 49.6% -43 +78 47.9% -0.14 4–9 (31%) 5–6 (45%) 96.0 -1.41
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 2025 1752 129.7 -3.27 +1.55 0.970 49.2% +8 -9 -278 39.7% -0.38 5–9 (36%) 1–6 (14%) 92.0 +0.56
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 2026 1816 132.6 -1.01 +0.43 0.978 49.7% -14 -51 -17 40.7% -0.27 3–7 (30%) 3–1 (75%) 96.4 -0.74
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 1823 128.7 -2.28 +0.74 0.942 48.7% -12 +4 -142 39.8% -0.50 19–36 (35%) 11–18 (38%) 91.0 -1.06

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.