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

Petra Kvitova vs Ai Sugiyama H2H: 0-1

Ai Sugiyama holds a 1–0 lead over Petra Kvitova in their WTA head-to-head. Across 1 main-draw meeting, Ai Sugiyama leads 1–0 on clay. Most recently, Ai Sugiyama won the 2008 Strasbourg Open round of 16 6-4 6-3.

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Petra Kvitova
Czech Republic Age 36 Left-Handed 182 cm / 6'0"
H2H
0 – 1
1 main-draw meetings
Ai Sugiyama
JPN Age 51 Right-Handed 163 cm / 5'4"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Ai Sugiyama #37 6-4 6-3 Petra Kvitova #93 Match data May 23, 2008* R16 Strasbourg Open Tier III → modern equivalent WTA 250 Clay

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
Petra Kvitova #450 #2 7,690 2,074 515 262 66.3% 2 9 2 14 4 31
Ai Sugiyama #97 #8 2,400 1,951 416 366 53.2% 0 0 0 2 4 6

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 Petra Kvitova Ai Sugiyama
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 — — — — — — — 1992 1–4 20.0% #184 1,477 0 0
17 2007 0–1 0.0% #150 1,485 0 0 1993 3–8 27.3% #145 1,486 0 0
18 2008 13–14 48.1% #50 1,607 0 0 1994 9–11 45.0% #72 1,556 0 0
19 2009 18–16 52.9% #61 1,702 0 1 1995 16–17 48.5% #46 1,665 0 0
20 2010 17–20 45.9% #34 1,701 0 1 1996 24–19 55.8% #28 1,751 0 0
21 2011 50–11 82.0% #2 2,059 1 7 1997 31–25 55.4% #21 1,837 0 1
22 2012 41–16 71.9% #8 1,960 1 9 1998 37–21 63.8% #18 1,862 0 3
23 2013 49–22 69.0% #6 1,962 1 11 1999 27–23 54.0% #24 1,807 0 3
24 2014 41–17 70.7% #4 1,982 2 14 2000 20–25 44.4% #32 1,679 0 3
25 2015 35–16 68.6% #6 1,908 2 17 2001 28–25 52.8% #30 1,718 0 3
26 2016 46–20 69.7% #11 1,990 2 19 2002 35–26 57.4% #24 1,755 0 3
27 2017 18–10 64.3% #29 1,902 2 20 2003 44–25 63.8% #10 1,915 0 5
28 2018 43–18 70.5% #7 1,896 2 25 2004 33–23 58.9% #17 1,808 0 6
29 2019 37–16 69.8% #7 1,914 2 27 2005 28–27 50.9% #29 1,741 0 6
30 2020 20–7 74.1% #8 1,964 2 27 2006 28–25 52.8% #26 1,743 0 6
31 2021 29–18 61.7% #17 1,888 2 28 2007 17–21 44.7% #38 1,633 0 6
32 2022 28–19 59.6% #16 1,913 2 29 2008 26–22 54.2% #31 1,713 0 6
33 2023 29–13 69.0% #14 1,923 2 31 2009 9–19 32.1% #97 1,627 0 6
35 2025 1–8 11.1% — 1,767 2 31 — — — — — — —

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 Petra Kvitova Ai Sugiyama
Yr HardClayGrassCarpet Yr HardClayGrassCarpet
W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win %
16 — — — — — — — — — — — — — — — — — 1992 0 3 3 0.0% — — — — — — — — 1 1 2 50.0%
17 2007 0 1 1 0.0% — — — — — — — — — — — — 1993 2 3 5 40.0% — — — — 0 2 2 0.0% 1 3 4 25.0%
18 2008 6 7 13 46.2% 6 4 10 60.0% 0 2 2 0.0% 1 1 2 50.0% 1994 6 7 13 46.2% — — — — 0 2 2 0.0% 3 2 5 60.0%
19 2009 15 9 24 62.5% 3 5 8 37.5% 0 1 1 0.0% 0 1 1 0.0% 1995 5 8 13 38.5% 6 4 10 60.0% 0 2 2 0.0% 5 3 8 62.5%
20 2010 11 14 25 44.0% 1 4 5 20.0% 5 2 7 71.4% — — — — 1996 19 11 30 63.3% 0 3 3 0.0% 4 2 6 66.7% 1 3 4 25.0%
21 2011 25 9 34 73.5% 9 1 10 90.0% 11 1 12 91.7% 5 0 5 100.0% 1997 19 13 32 59.4% 3 5 8 37.5% 2 2 4 50.0% 7 5 12 58.3%
22 2012 24 9 33 72.7% 10 4 14 71.4% 7 3 10 70.0% — — — — 1998 24 9 33 72.7% 6 5 11 54.5% 1 2 3 33.3% 6 5 11 54.5%
23 2013 33 14 47 70.2% 10 5 15 66.7% 5 2 7 71.4% 1 1 2 50.0% 1999 18 11 29 62.1% 3 4 7 42.9% 2 2 4 50.0% 4 6 10 40.0%
24 2014 26 12 38 68.4% 6 4 10 60.0% 9 1 10 90.0% — — — — 2000 11 13 24 45.8% 6 5 11 54.5% 1 2 3 33.3% 2 5 7 28.6%
25 2015 22 12 34 64.7% 11 3 14 78.6% 2 1 3 66.7% — — — — 2001 20 14 34 58.8% 4 6 10 40.0% 2 3 5 40.0% 2 2 4 50.0%
26 2016 36 13 49 73.5% 7 4 11 63.6% 3 3 6 50.0% — — — — 2002 26 16 42 61.9% 4 6 10 40.0% 5 3 8 62.5% 0 1 1 0.0%
27 2017 11 8 19 57.9% 1 1 2 50.0% 6 1 7 85.7% — — — — 2003 29 16 45 64.4% 7 4 11 63.6% 4 2 6 66.7% 4 3 7 57.1%
28 2018 24 13 37 64.9% 13 3 16 81.3% 6 2 8 75.0% — — — — 2004 22 14 36 61.1% 5 5 10 50.0% 5 2 7 71.4% 1 2 3 33.3%
29 2019 26 13 39 66.7% 8 2 10 80.0% 3 1 4 75.0% — — — — 2005 20 17 37 54.1% 7 6 13 53.8% 1 3 4 25.0% 0 1 1 0.0%
30 2020 15 6 21 71.4% 5 1 6 83.3% — — — — — — — — 2006 22 18 40 55.0% 1 3 4 25.0% 5 3 8 62.5% 0 1 1 0.0%
31 2021 18 11 29 62.1% 8 5 13 61.5% 3 2 5 60.0% — — — — 2007 10 15 25 40.0% 3 2 5 60.0% 2 3 5 40.0% 2 1 3 66.7%
32 2022 20 13 33 60.6% 1 4 5 20.0% 7 2 9 77.8% — — — — 2008 20 15 35 57.1% 4 5 9 44.4% 2 2 4 50.0% — — — —
33 2023 21 10 31 67.7% 0 2 2 0.0% 8 1 9 88.9% — — — — 2009 7 13 20 35.0% 0 4 4 0.0% 2 2 4 50.0% — — — —
35 2025 0 4 4 0.0% 1 2 3 33.3% 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — —
Career — 333 178 511 65.2% 100 54 154 64.9% 75 27 102 73.5% 7 3 10 70.0% — 280 216 496 56.5% 59 67 126 46.8% 38 39 77 49.4% 39 44 83 47.0%

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 700/776 of Petra Kvitova's and 170/347 of Ai Sugiyama'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 Petra Kvitova Ai Sugiyama
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%
18 2008 24/27 3.0 5.3 63.7% 63.6% 47.7% 46.7% 53.6% 57.6% 45.7% — —/— — — — — — — — — —
19 2009 30/34 1.8 5.1 59.8% 60.5% 45.4% 55.0% 48.3% 54.5% 47.3% — —/— — — — — — — — — —
20 2010 35/37 2.8 4.7 62.7% 64.0% 44.8% 52.6% 50.6% 56.9% 42.7% — —/— — — — — — — — — —
21 2011 56/61 3.8 3.5 61.7% 69.6% 52.2% 58.0% 49.5% 62.8% 45.6% — —/— — — — — — — — — —
22 2012 51/57 3.5 3.5 63.9% 69.6% 51.7% 55.0% 48.8% 63.1% 47.0% — —/— — — — — — — — — —
23 2013 68/71 3.6 5.2 62.7% 64.2% 47.5% 58.9% 51.8% 57.9% 44.3% — —/— — — — — — — — — —
24 2014 52/58 4.9 4.1 62.0% 71.2% 51.8% 54.1% 46.7% 63.8% 45.2% — —/— — — — — — — — — —
25 2015 38/51 4.2 3.6 63.4% 73.6% 54.7% 56.3% 49.5% 66.5% 42.6% — —/— — — — — — — — — —
26 2016 57/66 3.8 4.2 61.7% 70.6% 50.9% 56.2% 49.0% 62.8% 45.5% — —/— — — — — — — — — —
27 2017 28/28 5.6 5.9 58.0% 74.6% 47.5% 51.2% 46.1% 63.3% 43.9% 2003 12/69 0.8 5.8 60.8% 64.3% 45.1% 53.4% 43.3% 56.6% 48.3%
28 2018 55/61 4.4 5.7 59.9% 70.0% 49.7% 60.8% 50.3% 61.8% 45.9% 2004 11/56 1.2 4.5 60.8% 64.1% 45.3% 64.6% 47.8% 56.5% 48.7%
29 2019 45/53 4.9 4.2 61.9% 71.7% 52.0% 60.5% 44.4% 64.4% 44.3% 2005 7/55 1.4 5.0 65.8% 58.7% 40.3% 46.6% 51.4% 53.1% 42.6%
30 2020 26/27 4.8 4.2 63.5% 69.7% 53.3% 54.9% 46.8% 63.5% 46.3% 2006 37/53 1.3 3.7 67.8% 60.4% 43.2% 56.7% 47.8% 54.8% 44.7%
31 2021 42/47 4.5 3.9 64.0% 68.8% 49.7% 62.5% 46.2% 61.9% 44.3% 2007 36/38 1.2 5.6 62.8% 58.7% 42.4% 52.3% 50.3% 52.7% 47.1%
32 2022 46/47 5.1 4.9 63.0% 68.6% 47.4% 61.8% 52.7% 60.6% 41.6% 2008 41/48 0.9 5.3 63.3% 60.9% 43.5% 52.1% 43.6% 54.4% 45.4%
33 2023 40/42 5.3 5.5 62.7% 70.6% 47.6% 53.6% 50.3% 61.8% 43.1% 2009 26/28 0.8 4.9 65.4% 58.3% 42.7% 43.8% 45.1% 52.8% 41.1%
35 2025 7/9 3.1 6.0 63.8% 55.9% 35.9% 46.9% 56.2% 48.7% 36.5% — —/— — — — — — — — — —
Career — 700/777 4.1 4.6 62.2% 68.8% 49.6% 56.7% 49.2% 61.5% 44.6% — 170/782 1.1 4.9 64.3% 60.3% 43.2% 52.6% 46.7% 54.1% 45.2%

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 Petra Kvitova Ai Sugiyama
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 — — — — — — — — — — — — — — — — 1992 1478 102.6 — — — — +34 — — 30.8% -1.31 1–2 (33%) 0–2 — +0.31
17 2007 1485 98.5 — — — — — — — 33.3% -2.00 0–1 — — +0.05 1993 1487 125.5 — — — — +44 — — 37.0% -0.89 1–4 (20%) — — -0.26
18 2008 1608 130.9 +1.66 +1.28 1.077 51.5% -18 +7 — 50.0% +0.12 5–7 (42%) 3–4 (43%) 100.5 -0.04 1994 1557 120.7 — — — — +41 — — 47.8% +0.13 4–4 (50%) 1–2 (33%) — +1.49
19 2009 1703 133.5 -0.27 +2.91 1.039 50.9% +7 -102 — 48.6% +0.10 4–2 (67%) 2–1 (67%) — -0.83 1995 1665 135.9 — — — — -9 -11 — 49.3% +0.23 4–7 (36%) 3–0 (100%) 101.9 +0.28
20 2010 1702 137.8 +1.40 +0.05 0.989 49.8% -21 -143 -22 45.0% -0.47 4–5 (44%) 6–4 (60%) 100.1 -2.15 1996 1751 143.7 — — — — -8 -156 -152 54.3% +0.29 5–5 (50%) 3–3 (50%) 99.1 +0.30
21 2011 2060 158.0 +7.08 +2.42 1.227 54.1% -93 -295 -101 74.3% +1.54 13–5 (72%) 13–7 (65%) 109.8 -3.06 1997 1837 150.1 — — — — +27 -234 -204 51.5% 0.00 14–8 (64%) 11–8 (58%) 106.9 -1.35
22 2012 1960 153.8 +6.34 +3.52 1.273 54.6% +3 -103 -2 66.4% +1.26 12–7 (63%) 5–3 (63%) 102.0 +1.48 1998 1862 153.1 — — — — +57 -206 -239 60.3% +0.68 12–5 (71%) 9–4 (69%) 107.7 +0.41
23 2013 1963 151.5 +2.63 +1.47 1.052 51.1% +38 -108 +7 61.3% +0.64 23–12 (66%) 9–7 (56%) 102.8 +2.65 1999 1808 151.0 — — — — +46 -168 -203 53.0% +0.21 8–7 (53%) 4–4 (50%) 99.6 -1.12
24 2014 1982 155.2 +6.82 +2.91 1.250 54.4% -16 -166 +99 66.9% +1.31 10–7 (59%) 10–4 (71%) 103.3 +2.20 2000 1679 137.5 — — — — +24 +5 -92 46.1% -0.54 5–7 (42%) 7–5 (58%) 99.7 -0.80
25 2015 1908 152.2 +7.08 +1.73 1.269 54.3% -11 -15 +115 64.4% +1.07 10–8 (56%) 4–5 (44%) 95.4 +0.55 2001 1719 138.7 — — — — +19 -57 -121 53.7% +0.17 10–11 (48%) 6–2 (75%) 102.9 -0.48
26 2016 1990 155.9 +6.43 +2.58 1.224 54.2% +26 -112 -49 67.1% +1.38 11–9 (55%) 7–6 (54%) 97.6 -0.37 2002 1755 141.6 — — — — +15 -109 -67 56.1% +0.32 9–8 (53%) 8–6 (57%) 100.6 -0.40
27 2017 1903 140.4 +4.94 +1.34 1.195 53.1% +28 — +99 63.9% +0.87 2–5 (29%) 5–6 (45%) 92.8 -0.22 2003 1915 154.1 +1.48 +3.41 1.113 52.2% -8 -157 -164 58.3% +0.63 22–10 (69%) 7–7 (50%) 105.4 +1.81
28 2018 1896 151.5 +4.70 +3.13 1.203 53.8% -27 +81 +127 64.7% +1.07 16–6 (73%) 7–7 (50%) 104.2 +0.40 2004 1808 144.1 +0.61 +2.40 1.121 52.5% -4 -67 +28 57.5% +0.58 8–7 (53%) 4–8 (33%) 97.4 +2.38
29 2019 1914 163.0 +6.74 +2.67 1.245 54.0% -18 +139 +129 68.6% +1.29 8–9 (47%) 9–6 (60%) 97.4 -0.06 2005 1742 133.4 -1.10 -0.52 0.908 47.7% +17 -41 -12 51.1% +0.11 11–16 (41%) 6–4 (60%) 94.4 +2.95
30 2020 1965 151.9 +5.00 +3.29 1.269 54.5% -21 +92 — 70.5% +1.49 6–3 (67%) 4–4 (50%) 101.7 +0.33 2006 1744 138.5 -0.78 +0.79 0.988 49.8% +9 -91 +46 50.8% +0.14 10–8 (56%) 2–14 (13%) 94.4 +0.98
31 2021 1889 149.5 +4.60 +1.74 1.160 53.1% +19 +158 +227 63.1% +0.98 8–9 (47%) 6–6 (50%) 94.2 +1.06 2007 1633 125.5 -2.23 +2.56 0.996 50.0% -7 +43 +130 47.3% -0.13 8–9 (47%) 5–4 (56%) 98.7 +1.74
32 2022 1913 149.9 +3.47 -0.04 1.055 51.1% +11 +3 +252 57.3% +0.48 10–5 (67%) 11–8 (58%) 104.8 -0.28 2008 1713 136.4 -0.29 +1.82 0.995 49.6% +26 -71 +32 48.5% -0.19 8–5 (62%) 5–5 (50%) 105.2 +0.32
33 2023 1924 152.8 +4.16 +0.64 1.127 52.2% +25 — +314 64.4% +0.86 6–4 (60%) 11–6 (65%) 101.6 +0.31 2009 1627 135.9 -1.68 -1.34 0.871 46.9% +43 -37 +108 35.6% -0.86 2–5 (29%) 4–3 (57%) 100.4 -0.98
35 2025 1768 106.1 -3.70 -3.58 0.711 43.0% +76 +18 — 27.3% -1.50 0–4 (0%) — — +0.07 — — — — — — — — — — — — — — — —
Career — 2074 157.9 +4.70 +1.98 1.158 52.9% -3 -35 +84 62.9% +0.91 148–108 (58%) 112–84 (57%) 101.7 +0.27 — 1952 148.1 -0.87 +1.32 0.986 49.6% +18 -90 -55 52.1% +0.15 142–128 (53%) 85–81 (51%) 103.0 +0.97

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.