H2H data updated: 2026-09-14 00:00 UTC

Katie Volynets vs Carol Zhao

Compare the head-to-head record, career totals, season-by-season performance, and match log for Katie Volynets vs Carol Zhao.

United States Age 24 Right-Handed 170 cm / 5'7"
H2H
0 0
0 main-draw meetings
Canada Age 31 Right-Handed 168 cm / 5'6"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Katie Volynets #103 6-3 6-1 Carol Zhao #226 Match data Jan 10, 2024 Q1 Q Australian Open Grand Slam Hard

1 qualifying meeting shown in the table; qualifying is excluded from the H2H score. 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
Katie Volynets #78 #56 1,042 1,823 43 82 34.4% 0 0 0 0 0 0
Carol Zhao #432 #131 458 1,515 5 21 19.2% 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 Katie Volynets Carol Zhao
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 2013 0–1 0.0% #461 1,493 0 0
19 2021 0–6 0.0% #180 1,398 0 0 2014 1–1 50.0% #293 1,513 0 0
20 2022 2–6 25.0% #114 1,447 0 0 2015 0–2 0.0% #343 1,488 0 0
21 2023 7–13 35.0% #108 1,540 0 0 2016 0–2 0.0% #498 1,462 0 0
22 2024 13–17 43.3% #58 1,713 0 0 2017 0–1 0.0% #149 1,452 0 0
23 2025 11–21 34.4% #93 1,751 0 0 2018 0–3 0.0% #299 1,446 0 0
24 2026 9–16 36.0% #78 1,815 0 0
26 2021 0–1 0.0% #290 1,416 0 0
27 2022 1–3 25.0% #176 1,399 0 0
28 2023 2–4 33.3% #219 1,441 0 0
29 2024 1–2 33.3% #246 1,419 0 0
31 2026 0–1 0.0% #432 1,351 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 Katie Volynets Carol Zhao
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% 2013 0 1 1 0.0%
19 2021 0 3 3 0.0% 0 1 1 0.0% 0 2 2 0.0% 2014 1 1 2 50.0%
20 2022 1 3 4 25.0% 1 2 3 33.3% 0 1 1 0.0% 2015 0 2 2 0.0%
21 2023 7 7 14 50.0% 0 3 3 0.0% 0 3 3 0.0% 2016 0 2 2 0.0%
22 2024 9 13 22 40.9% 3 3 6 50.0% 1 1 2 50.0% 2017 0 1 1 0.0%
23 2025 6 14 20 30.0% 4 5 9 44.4% 1 2 3 33.3% 2018 0 2 2 0.0% 0 1 1 0.0%
24 2026 6 9 15 40.0% 2 5 7 28.6% 1 2 3 33.3%
26 2021 0 1 1 0.0%
27 2022 1 2 3 33.3% 0 1 1 0.0%
28 2023 0 1 1 0.0% 1 1 2 50.0% 1 2 3 33.3%
29 2024 1 2 3 33.3%
31 2026 0 1 1 0.0%
Career 30 52 82 36.6% 10 19 29 34.5% 3 11 14 21.4% 3 16 19 15.8% 1 3 4 25.0% 1 2 3 33.3%

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 118/125 of Katie Volynets's and 26/26 of Carol Zhao'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 Katie Volynets Carol Zhao
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% 2013 1/1 1.0 2.0 45.2% 47.4% 26.1% 25.0% 100.0% 35.7% 38.0%
19 2021 6/6 0.8 2.8 73.8% 54.6% 45.5% 54.2% 38.4% 52.0% 39.5% 2014 2/2 2.5 2.0 57.4% 68.3% 37.9% 58.3% 66.7% 55.5% 40.2%
20 2022 8/8 0.5 2.8 72.9% 51.4% 45.1% 49.4% 37.2% 49.5% 46.1% 2015 2/2 2.0 3.5 46.7% 44.0% 47.7% 58.3% 10.0% 46.5% 34.9%
21 2023 20/20 1.5 3.2 68.6% 56.2% 42.4% 44.6% 49.0% 51.9% 42.1% 2016 2/2 2.5 4.0 57.0% 59.8% 34.4% 46.9% 41.7% 49.2% 39.6%
22 2024 30/30 0.9 1.4 76.8% 57.1% 45.3% 49.5% 48.6% 54.4% 44.7% 2017 1/1 2.0 7.0 56.3% 71.4% 50.0% 0.0% 75.0% 62.1% 34.1%
23 2025 25/32 0.8 0.6 78.7% 55.1% 44.2% 45.7% 51.7% 52.6% 46.0% 2018 3/3 0.3 6.0 58.3% 59.2% 38.9% 49.9% 23.7% 50.7% 34.9%
24 2026 25/25 1.5 1.6 75.4% 58.3% 43.1% 52.5% 49.0% 55.0% 44.0% —/—
26 —/— 2021 1/1 0.0 6.0 61.7% 58.6% 33.3% 33.3% 100.0% 48.9% 34.0%
27 —/— 2022 4/4 2.3 4.0 63.5% 62.6% 45.1% 57.8% 29.2% 55.9% 40.6%
28 —/— 2023 6/6 2.0 10.2 68.2% 59.8% 30.0% 44.9% 49.8% 50.2% 41.1%
29 —/— 2024 3/3 3.0 12.3 62.9% 71.8% 27.1% 55.0% 45.7% 54.6% 43.1%
31 —/— 2026 1/1 0.0 10.0 59.8% 61.5% 42.9% 58.3% 42.9% 54.0% 35.8%
Career 118/125 1.1 1.9 74.8% 56.5% 43.9% 48.3% 48.1% 53.3% 44.0% 26/26 1.8 6.8 60.5% 61.0% 36.6% 48.4% 45.3% 51.7% 39.0%

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 Katie Volynets Carol Zhao
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 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 2013 1494 101.4 -1.52 +2.05 0.591 37.0% 0.0% -4.00 -0.04
19 2021 1398 99.1 -2.67 -2.35 0.822 45.9% +23 14.3% -1.86 0–2 0–2 +0.04 2014 1513 104.2 +0.20 0.00 0.903 48.0% 0.0% -5.00 -0.02
20 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 2015 1489 92.9 -2.27 -1.66 0.653 41.1% 0.0% -4.75 +0.27
21 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 2016 1462 102.6 -0.28 -1.04 0.779 44.2% 20.0% -2.40 0–1 +0.02
22 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 2017 1452 99.2 -0.88 +2.61 0.898 47.8% 33.3% -1.00 0–1 0–1 +0.11
23 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 2018 1446 88.1 -1.92 -3.65 0.707 42.6% 25.0% -2.75 0–2 1–0 +0.10
24 2026 1816 132.6 -1.04 +0.45 0.978 49.7% -14 -51 -17 40.7% -0.27 3–7 (30%) 3–1 (75%) 96.4 -0.74 2019 1448 97.7
26 2021 1416 93.8 +3.05 -3.36 0.665 41.0% 0.0% -3.50 -0.01
27 2022 1400 100.5 -0.44 -2.01 0.921 48.1% -28 33.3% -0.56 0–1 0–1 +0.31
28 2023 1441 101.4 -2.20 -1.23 0.826 45.7% +178 35.7% -1.43 1–1 3–0 (100%) +0.38
29 2024 1420 100.0 -1.37 +0.79 0.951 48.9% +16 42.9% -0.14 0–1 0–1 +0.17
30 2025 1397 93.9
31 2026 1352 93.3 -2.87 -1.19 0.779 45.2% 33.3% -1.67 0–1 -0.03
Career 1823 128.7 -2.29 +0.75 0.942 48.7% -12 +4 -142 39.8% -0.50 19–36 (35%) 11–18 (38%) 91.0 -1.06 1515 95.5 -1.22 -1.13 0.808 45.3% -6 +178 27.1% -1.90 1–8 (11%) 4–3 (57%) 94.0 +4.85

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.