H2H data updated: 2026-08-15 04:37 UTC

Shuai Zhang vs Kayla Day

Compare the head-to-head record, career totals, season-by-season performance, and match log for Shuai Zhang vs Kayla Day.

China Right-Handed 177 cm / 5'10"
H2H
0 0
0 main draw meetings
United States Age 26 Left-Handed 173 cm / 5'8"

H2H Match Log

WinnerScoreLoserMatch DataDateRoundTournamentCategorySurface
No head-to-head meetings found.

Career Comparison

Player Current Peak Pts Elo W L Win % GS 1000 Finals 500 250 Titles
Shuai Zhang #62 #22 1,905 1,857 228 290 44.0% 0 0 0 0 3 3
Kayla Day #131 #84 847 1,638 9 28 24.3% 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.

Shuai Zhang Kayla Day
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
2006 0–1 0.0% #203 1,495 0 0 2016 1–2 33.3% #198 1,541 0 0
2007 0–3 0.0% #149 1,464 0 0 2017 3–5 37.5% #150 1,525 0 0
2008 0–6 0.0% #235 1,412 0 0 2018 0–2 0.0% #313 1,487 0 0
2009 2–1 66.7% #154 1,467 0 0 2022 0–2 0.0% #197 1,535 0 0
2010 3–4 42.9% #90 1,492 0 0 2023 3–6 33.3% #87 1,564 0 0
2011 8–22 26.7% #126 1,445 0 0 2024 0–7 0.0% #241 1,436 0 0
2012 2–6 25.0% #127 1,457 0 0 2026 2–4 33.3% #131 1,638 0 0
2013 9–4 69.2% #52 1,598 0 1
2014 18–24 42.9% #61 1,601 0 1
2015 4–12 25.0% #139 1,518 0 1
2016 23–20 53.5% #23 1,742 0 1
2017 23–24 48.9% #36 1,770 0 2
2018 28–27 50.9% #40 1,727 0 2
2019 18–23 43.9% #40 1,681 0 2
2020 12–10 54.5% #35 1,732 0 2
2021 15–24 38.5% #60 1,631 0 2
2022 34–26 56.7% #25 1,733 0 3
2023 4–18 18.2% #245 1,526 0 3
2024 5–12 29.4% #205 1,576 0 3
2025 10–7 58.8% #81 1,731 0 3
2026 10–16 38.5% #62 1,731 0 3

Surface Results by Career Season

Rows are aligned in career order because complete birth data is unavailable. 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.

Shuai Zhang Kayla Day
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 %
2006 0 1 1 0.0% 2016 1 2 3 33.3%
2007 0 3 3 0.0% 2017 3 4 7 42.9% 0 1 1 0.0%
2008 0 5 5 0.0% 0 1 1 0.0% 2018 0 2 2 0.0%
2009 2 1 3 66.7% 2022 0 2 2 0.0%
2010 3 3 6 50.0% 0 1 1 0.0% 2023 1 4 5 20.0% 2 2 4 50.0%
2011 7 17 24 29.2% 1 4 5 20.0% 0 1 1 0.0% 2024 0 3 3 0.0% 0 3 3 0.0% 0 1 1 0.0%
2012 2 5 7 28.6% 0 1 1 0.0% 2026 2 2 4 50.0% 0 1 1 0.0% 0 1 1 0.0%
2013 8 3 11 72.7% 1 1 2 50.0%
2014 10 15 25 40.0% 4 6 10 40.0% 4 3 7 57.1%
2015 1 6 7 14.3% 3 5 8 37.5% 0 1 1 0.0%
2016 21 14 35 60.0% 2 4 6 33.3% 0 2 2 0.0%
2017 18 14 32 56.3% 3 7 10 30.0% 2 3 5 40.0%
2018 22 19 41 53.7% 6 6 12 50.0% 0 2 2 0.0%
2019 11 15 26 42.3% 1 4 5 20.0% 6 4 10 60.0%
2020 7 7 14 50.0% 5 3 8 62.5%
2021 6 13 19 31.6% 4 8 12 33.3% 5 3 8 62.5%
2022 22 15 37 59.5% 4 8 12 33.3% 8 3 11 72.7%
2023 4 10 14 28.6% 0 4 4 0.0% 0 4 4 0.0%
2024 5 10 15 33.3% 0 1 1 0.0% 0 1 1 0.0%
2025 9 5 14 64.3% 1 1 2 50.0% 0 1 1 0.0%
2026 6 6 12 50.0% 3 7 10 30.0% 1 3 4 25.0%
Career 164 187 351 46.7% 38 72 110 34.5% 26 31 57 45.6% Career 7 19 26 26.9% 2 7 9 22.2% 0 2 2 0.0%

Performance Progression by Career Season

Rows are aligned in career order because complete birth data is unavailable. Detailed serve and return statistics available for 493/522 of Shuai Zhang's and 37/38 of Kayla Day'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.

Shuai Zhang Kayla Day
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%
2007 1/3 0.0 2.0 55.8% 62.1% 39.1% 42.9% 100.0% 51.9% 22.7% 2016 3/3 1.0 3.7 59.0% 55.2% 30.3% 50.6% 66.7% 44.4% 38.1%
2008 6/6 0.8 3.2 68.8% 53.0% 45.1% 47.6% 38.3% 50.3% 38.5% 2017 8/8 3.4 5.5 48.8% 66.2% 45.1% 51.9% 31.0% 55.7% 38.9%
2009 2/3 0.0 4.0 65.6% 47.9% 49.0% 39.4% 37.9% 48.5% 42.7% 2018 2/2 5.0 6.0 48.1% 68.0% 33.7% 50.0% 35.0% 49.8% 33.8%
2010 6/7 0.2 5.3 72.2% 51.8% 31.0% 48.7% 46.7% 46.1% 42.2% 2022 2/2 4.0 2.5 66.5% 68.4% 39.1% 56.4% 50.0% 58.6% 36.6%
2011 28/30 0.6 2.5 69.3% 54.9% 39.3% 47.4% 41.5% 50.2% 39.4% 2023 9/9 2.2 3.0 58.1% 62.9% 43.8% 57.4% 39.7% 55.0% 39.3%
2012 8/8 1.1 3.0 64.8% 56.8% 35.6% 43.8% 44.0% 49.6% 41.2% 2024 7/7 3.7 3.3 66.8% 58.5% 42.2% 52.8% 37.1% 55.1% 36.5%
2013 11/13 1.5 1.5 64.9% 68.1% 47.0% 62.4% 49.6% 60.4% 48.0% 2026 6/7 3.3 3.2 64.6% 59.3% 49.2% 50.2% 43.5% 55.8% 41.1%
2014 38/42 1.2 1.9 68.5% 57.4% 45.2% 51.5% 49.8% 53.8% 43.0% —/—
2015 14/16 1.6 2.8 66.9% 60.1% 45.8% 51.2% 59.4% 55.0% 42.9% —/—
2016 38/46 0.9 1.7 66.2% 58.7% 48.2% 49.5% 56.1% 55.2% 45.5% —/—
2017 46/47 3.0 2.8 63.5% 65.3% 44.1% 53.1% 50.1% 57.6% 44.3% —/—
2018 55/55 2.3 2.6 63.7% 63.6% 46.9% 52.4% 47.8% 57.3% 43.7% —/—
2019 41/41 2.1 2.8 62.7% 62.5% 44.0% 51.7% 47.7% 55.7% 41.9% —/—
2020 22/22 2.0 2.5 67.4% 61.9% 48.0% 48.9% 50.6% 57.2% 43.0% —/—
2021 39/39 1.5 2.9 64.7% 59.8% 43.1% 53.0% 43.0% 54.0% 39.9% —/—
2022 58/60 2.1 2.2 65.7% 64.3% 48.1% 45.8% 47.7% 58.8% 42.2% —/—
2023 22/22 1.2 2.9 61.1% 57.6% 39.6% 41.4% 52.3% 50.6% 37.3% —/—
2024 17/17 1.5 2.1 64.9% 61.4% 43.5% 45.0% 40.9% 55.0% 39.3% —/—
2025 15/18 2.6 2.9 67.0% 60.0% 39.9% 39.2% 47.8% 53.4% 45.4% —/—
2026 26/27 1.6 2.2 68.7% 59.9% 47.8% 56.2% 42.5% 56.0% 40.1% —/—
Career 493/523 1.8 2.5 65.5% 60.9% 44.8% 49.9% 48.1% 55.3% 42.3% Career 37/38 3.1 3.8 58.8% 62.1% 42.8% 53.2% 40.4% 54.4% 38.4%

Advanced Statistics Comparison by Career Season

Rows are aligned in career order because complete birth data is unavailable. Metrics are precomputed from eligible main-draw results; point-stat values use the available detailed sample. 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.

Shuai Zhang Kayla Day
Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Schedule Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Schedule
2006 1495 104.8 33.3% -1.67 0–1 -0.16 2016 1541 108.1 -2.89 +0.53 0.685 42.0% +16 0.0% -4.75 -0.22
2007 1464 103.0 -1.60 +0.26 0.473 38.5% +16 0.0% -2.67 0–1 -0.03 2017 1526 111.1 0.00 -2.26 0.877 47.2% +12 45.0% -0.85 1–3 (25%) -0.27
2008 1413 101.8 -1.83 -2.28 0.775 44.3% +21 14.3% -2.21 0–2 0–2 -0.03 2018 1488 90.9 -2.88 -2.16 0.673 41.8% 20.0% -3.20 0–1 +0.18
2009 1468 120.7 +2.65 +2.50 0.830 45.6% +21 66.7% +0.33 1–0 -0.05 2019 1463 99.5
2010 1492 103.6 -3.51 -1.21 0.783 44.3% +26 37.5% -1.19 2–0 1–1 +0.43 2020 1450
2011 1445 108.6 -4.27 -3.16 0.790 44.9% +24 +34 30.8% -1.57 3–4 (43%) 1–6 (14%) +0.04 2022 1535 99.4 -0.92 -1.75 0.884 47.0% 0.0% -2.00 0–1 +0.40
2012 1457 113.5 -2.34 +0.08 0.817 45.5% +14 23.5% -1.71 1–0 0–1 -0.06 2023 1565 119.0 -0.82 -1.34 0.874 47.7% -46 +5 31.6% -0.84 1–0 0–1 +0.48
2013 1599 123.5 +2.33 +1.26 1.212 54.5% -6 70.4% +1.52 0–1 2–0 +0.33 2024 1436 102.8 -2.31 -3.54 0.812 46.2% -1 +62 22.2% -1.61 0–4 (0%) 1–3 (25%) +0.80
2014 1601 117.2 -1.75 -0.53 0.931 48.5% -53 -64 +34 42.9% -0.46 10–6 (63%) 4–4 (50%) +0.53 2025 1481
2015 1519 110.7 -2.05 -0.11 0.952 48.8% -21 -6 33.3% -0.83 0–4 (0%) 0–3 (0%) -0.66 2026 1638 132.1 +0.10 +0.13 0.931 48.6% -14 35.7% -0.86 1–1 1–1 -0.59
2016 1743 135.8 -0.56 +2.30 1.016 50.3% +22 -249 50.6% 0.00 8–1 (89%) 5–6 (45%) -0.28
2017 1771 137.5 +0.84 +0.78 1.044 51.0% +47 -285 -228 50.9% +0.34 8–10 (44%) 7–8 (47%) -0.17
2018 1727 132.0 +0.70 +0.72 1.025 50.7% +24 -167 52.4% +0.02 5–9 (36%) 9–8 (53%) +2.31
2019 1682 131.6 -0.65 -1.22 0.946 49.1% -16 -99 -23 47.7% -0.17 4–6 (40%) 5–1 (83%) +0.31
2020 1732 132.0 0.00 +0.35 1.003 50.0% -60 -38 52.0% -0.06 4–2 (67%) 5–3 (63%) -0.01
2021 1632 116.8 -1.98 -2.78 0.869 47.1% -13 -15 +98 43.2% -0.80 2–5 (29%) 5–3 (63%) +1.11
2022 1734 139.5 +1.61 -0.45 1.023 50.4% -6 -141 +122 53.4% +0.09 6–2 (75%) 11–8 (58%) +0.55
2023 1526 112.3 -4.75 -4.14 0.755 43.8% +90 -29 +195 28.3% -1.61 1–5 (17%) 1–2 (33%) +0.91
2024 1576 131.2 -0.87 -2.36 0.873 47.3% +48 35.1% -1.08 0–3 (0%) 2–1 (67%) -0.81
2025 1732 134.6 -2.26 +1.21 0.975 49.2% +28 50.0% -0.25 6–0 (100%) 1–2 (33%) -1.00
2026 1732 132.0 -0.72 -1.39 0.911 48.1% +14 -200 +24 42.4% -0.58 2–5 (29%) 4–1 (80%) -0.41
Career 1858 134.1 -0.74 -0.56 0.946 48.9% +10 -114 +38 45.4% -0.38 62–66 (48%) 64–61 (51%) +0.55 Career 1638 116.5 -1.06 -1.63 0.842 46.6% -7 +29 29.8% -1.39 3–9 (25%) 2–6 (25%) +2.11

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.