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

Samantha Stosur vs Ai Sugiyama H2H: 2-3

Ai Sugiyama holds a 3–2 lead over Samantha Stosur in their WTA head-to-head. Across 5 main-draw meetings, Ai Sugiyama leads 3–2 on hard courts. Most recently, Samantha Stosur won the 2009 US Open first round 6-4 4-6 6-4.

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Samantha Stosur
AUS Age 42 Right-Handed 175 cm / 5'9"
H2H
2 – 3
5 main-draw meetings
Ai Sugiyama
JPN Age 51 Right-Handed 163 cm / 5'4"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Samantha Stosur #15 6-4 4-6 6-4 Ai Sugiyama #71 Match data Sep 2, 2009* R128 US Open Grand Slam Hard
Samantha Stosur #51 6-2 6-3 Ai Sugiyama #29 Match data Jan 7, 2009* R32 Brisbane International International → modern equivalent WTA 250 Hard
Ai Sugiyama #33 7-6(10) 6-2 Samantha Stosur #52 Match data Jul 28, 2005* R32 Stanford Tier II → modern equivalent WTA 500 Hard
Ai Sugiyama #21 6-2 6-3 Samantha Stosur #46 Match data Feb 24, 2005* R32 Qatar Open Tier II → modern equivalent WTA 500 Hard
Ai Sugiyama #10 7-5 3-6 6-3 Samantha Stosur #163 Match data Jan 10, 2004* SF Gold Coast Tier III → modern equivalent WTA 250 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
Samantha Stosur #531 #4 6,195 2,072 459 345 57.1% 1 0 0 2 6 9
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 Samantha Stosur Ai Sugiyama
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 — — — — — — — 1992 1–4 20.0% #184 1,477 0 0
17 — — — — — — — 1993 3–8 27.3% #145 1,486 0 0
18 2002 0–2 0.0% #245 1,475 0 0 1994 9–11 45.0% #72 1,556 0 0
19 2003 2–4 33.3% #163 1,493 0 0 1995 16–17 48.5% #46 1,665 0 0
20 2004 17–17 50.0% #65 1,605 0 0 1996 24–19 55.8% #28 1,751 0 0
21 2005 18–22 45.0% #46 1,588 0 0 1997 31–25 55.4% #21 1,837 0 1
22 2006 29–24 54.7% #29 1,747 0 0 1998 37–21 63.8% #18 1,862 0 3
23 2007 15–15 50.0% #46 1,724 0 0 1999 27–23 54.0% #24 1,807 0 3
24 2008 18–12 60.0% #52 1,754 0 0 2000 20–25 44.4% #32 1,679 0 3
25 2009 38–20 65.5% #13 1,887 0 1 2001 28–25 52.8% #30 1,718 0 3
26 2010 43–19 69.4% #6 1,931 0 2 2002 35–26 57.4% #24 1,755 0 3
27 2011 46–21 68.7% #6 1,967 1 3 2003 44–25 63.8% #10 1,915 0 5
28 2012 40–24 62.5% #9 1,873 1 3 2004 33–23 58.9% #17 1,808 0 6
29 2013 40–22 64.5% #18 1,904 1 5 2005 28–27 50.9% #29 1,741 0 6
30 2014 32–22 59.3% #22 1,860 1 6 2006 28–25 52.8% #26 1,743 0 6
31 2015 34–22 60.7% #27 1,782 1 8 2007 17–21 44.7% #38 1,633 0 6
32 2016 30–23 56.6% #21 1,702 1 8 2008 26–22 54.2% #31 1,713 0 6
33 2017 22–19 53.7% #41 1,731 1 9 2009 9–19 32.1% #97 1,627 0 6
34 2018 17–24 41.5% #74 1,655 1 9 — — — — — — —
35 2019 15–17 46.9% #99 1,631 1 9 — — — — — — —
36 2020 1–3 25.0% #112 1,607 1 9 — — — — — — —
37 2021 1–10 9.1% #382 1,518 1 9 — — — — — — —
38 2022 1–3 25.0% #529 1,506 1 9 — — — — — — —

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 Samantha Stosur 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 — — — — — — — — — — — — — — — — — 1993 2 3 5 40.0% — — — — 0 2 2 0.0% 1 3 4 25.0%
18 2002 0 2 2 0.0% — — — — — — — — — — — — 1994 6 7 13 46.2% — — — — 0 2 2 0.0% 3 2 5 60.0%
19 2003 2 3 5 40.0% — — — — 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 2004 12 11 23 52.2% 3 4 7 42.9% 2 2 4 50.0% — — — — 1996 19 11 30 63.3% 0 3 3 0.0% 4 2 6 66.7% 1 3 4 25.0%
21 2005 12 13 25 48.0% 3 5 8 37.5% 2 3 5 40.0% 1 1 2 50.0% 1997 19 13 32 59.4% 3 5 8 37.5% 2 2 4 50.0% 7 5 12 58.3%
22 2006 18 15 33 54.5% 6 5 11 54.5% 2 2 4 50.0% 3 2 5 60.0% 1998 24 9 33 72.7% 6 5 11 54.5% 1 2 3 33.3% 6 5 11 54.5%
23 2007 6 7 13 46.2% 6 5 11 54.5% 1 2 3 33.3% 2 1 3 66.7% 1999 18 11 29 62.1% 3 4 7 42.9% 2 2 4 50.0% 4 6 10 40.0%
24 2008 11 7 18 61.1% 2 2 4 50.0% 5 3 8 62.5% — — — — 2000 11 13 24 45.8% 6 5 11 54.5% 1 2 3 33.3% 2 5 7 28.6%
25 2009 29 14 43 67.4% 6 4 10 60.0% 3 2 5 60.0% — — — — 2001 20 14 34 58.8% 4 6 10 40.0% 2 3 5 40.0% 2 2 4 50.0%
26 2010 22 14 36 61.1% 18 3 21 85.7% 3 2 5 60.0% — — — — 2002 26 16 42 61.9% 4 6 10 40.0% 5 3 8 62.5% 0 1 1 0.0%
27 2011 31 14 45 68.9% 12 5 17 70.6% 3 2 5 60.0% — — — — 2003 29 16 45 64.4% 7 4 11 63.6% 4 2 6 66.7% 4 3 7 57.1%
28 2012 25 16 41 61.0% 14 5 19 73.7% 1 3 4 25.0% — — — — 2004 22 14 36 61.1% 5 5 10 50.0% 5 2 7 71.4% 1 2 3 33.3%
29 2013 31 15 46 67.4% 6 5 11 54.5% 3 2 5 60.0% — — — — 2005 20 17 37 54.1% 7 6 13 53.8% 1 3 4 25.0% 0 1 1 0.0%
30 2014 23 14 37 62.2% 8 5 13 61.5% 1 3 4 25.0% — — — — 2006 22 18 40 55.0% 1 3 4 25.0% 5 3 8 62.5% 0 1 1 0.0%
31 2015 16 15 31 51.6% 16 5 21 76.2% 2 2 4 50.0% — — — — 2007 10 15 25 40.0% 3 2 5 60.0% 2 3 5 40.0% 2 1 3 66.7%
32 2016 11 15 26 42.3% 18 6 24 75.0% 1 2 3 33.3% — — — — 2008 20 15 35 57.1% 4 5 9 44.4% 2 2 4 50.0% — — — —
33 2017 10 13 23 43.5% 12 6 18 66.7% — — — — — — — — 2009 7 13 20 35.0% 0 4 4 0.0% 2 2 4 50.0% — — — —
34 2018 3 13 16 18.8% 9 7 16 56.3% 5 4 9 55.6% — — — — — — — — — — — — — — — — — — — — —
35 2019 9 11 20 45.0% 4 3 7 57.1% 2 3 5 40.0% — — — — — — — — — — — — — — — — — — — — —
36 2020 1 3 4 25.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
37 2021 1 7 8 12.5% — — — — 0 3 3 0.0% — — — — — — — — — — — — — — — — — — — — —
38 2022 1 2 3 33.3% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 274 224 498 55.0% 143 76 219 65.3% 36 41 77 46.8% 6 4 10 60.0% — 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 648/803 of Samantha Stosur'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 Samantha Stosur 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%
19 2003 1/6 6.0 5.0 49.4% 74.4% 35.0% 33.3% 33.3% 54.4% 38.2% — —/— — — — — — — — — —
20 2004 5/34 2.2 2.4 49.6% 64.1% 45.0% 55.6% 30.1% 54.4% 34.4% — —/— — — — — — — — — —
21 2005 9/40 4.7 4.4 56.5% 70.7% 48.7% 49.9% 46.1% 61.2% 40.8% — —/— — — — — — — — — —
22 2006 36/53 4.1 2.3 61.8% 64.6% 47.1% 51.1% 39.0% 58.2% 38.5% — —/— — — — — — — — — —
23 2007 29/30 4.4 2.9 60.9% 66.0% 45.8% 59.0% 45.7% 57.6% 38.6% — —/— — — — — — — — — —
24 2008 24/30 5.1 3.5 51.9% 71.1% 51.5% 59.2% 42.5% 61.4% 42.9% — —/— — — — — — — — — —
25 2009 52/58 4.8 3.5 58.8% 68.8% 50.7% 61.2% 53.9% 61.1% 43.5% — —/— — — — — — — — — —
26 2010 59/62 4.8 3.2 60.0% 70.7% 51.5% 57.8% 49.4% 63.0% 42.8% — —/— — — — — — — — — —
27 2011 59/67 3.2 2.1 63.5% 71.2% 53.3% 62.1% 48.8% 64.6% 42.2% 2003 12/69 0.8 5.8 60.8% 64.3% 45.1% 53.4% 43.3% 56.6% 48.3%
28 2012 57/64 3.8 3.2 64.6% 68.1% 51.2% 59.1% 44.5% 62.1% 43.0% 2004 11/56 1.2 4.5 60.8% 64.1% 45.3% 64.6% 47.8% 56.5% 48.7%
29 2013 56/62 2.9 3.7 61.8% 68.1% 48.2% 61.2% 50.2% 60.3% 45.1% 2005 7/55 1.4 5.0 65.8% 58.7% 40.3% 46.6% 51.4% 53.1% 42.6%
30 2014 51/54 4.4 2.8 61.7% 69.1% 51.1% 55.0% 50.9% 62.3% 42.9% 2006 37/53 1.3 3.7 67.8% 60.4% 43.2% 56.7% 47.8% 54.8% 44.7%
31 2015 43/56 4.7 3.4 60.4% 69.7% 59.1% 58.6% 45.0% 65.5% 41.4% 2007 36/38 1.2 5.6 62.8% 58.7% 42.4% 52.3% 50.3% 52.7% 47.1%
32 2016 40/53 3.5 4.8 60.5% 64.9% 45.1% 52.4% 46.1% 57.1% 40.0% 2008 41/48 0.9 5.3 63.3% 60.9% 43.5% 52.1% 43.6% 54.4% 45.4%
33 2017 39/41 3.8 2.9 62.6% 67.3% 48.7% 54.2% 47.9% 60.4% 44.2% 2009 26/28 0.8 4.9 65.4% 58.3% 42.7% 43.8% 45.1% 52.8% 41.1%
34 2018 40/42 4.1 3.3 60.6% 65.0% 47.7% 50.5% 45.7% 58.2% 37.6% — —/— — — — — — — — — —
35 2019 30/32 4.2 4.5 58.8% 65.9% 40.1% 52.8% 41.5% 55.3% 40.2% — —/— — — — — — — — — —
36 2020 4/4 2.3 3.8 69.9% 61.3% 34.5% 40.5% 31.5% 53.8% 36.7% — —/— — — — — — — — — —
37 2021 10/11 2.8 3.7 64.7% 59.4% 36.6% 53.1% 31.7% 51.3% 32.8% — —/— — — — — — — — — —
38 2022 4/4 3.8 4.3 59.3% 59.0% 38.3% 25.7% 34.2% 51.4% 38.4% — —/— — — — — — — — — —
Career — 648/805 4.0 3.3 60.9% 67.9% 49.4% 56.7% 46.6% 60.6% 41.7% — 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 Samantha Stosur 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 — — — — — — — — — — — — — — — — 1993 1487 125.5 — — — — +44 — — 37.0% -0.89 1–4 (20%) — — -0.26
18 2002 1476 94.7 — — — — — — — 20.0% -3.20 0–1 — — +0.06 1994 1557 120.7 — — — — +41 — — 47.8% +0.13 4–4 (50%) 1–2 (33%) — +1.49
19 2003 1493 117.7 +0.87 +0.74 0.837 46.5% +24 — — 35.7% 0.00 1–1 0–5 (0%) — -0.19 1995 1665 135.9 — — — — -9 -11 — 49.3% +0.23 4–7 (36%) 3–0 (100%) 101.9 +0.28
20 2004 1606 118.2 -0.27 -2.88 0.756 44.8% +5 -91 -21 51.3% -0.46 3–5 (38%) 7–2 (78%) 102.6 -1.27 1996 1751 143.7 — — — — -8 -156 -152 54.3% +0.29 5–5 (50%) 3–3 (50%) 99.1 +0.30
21 2005 1589 131.3 +2.67 -1.67 1.051 50.5% +30 -61 -33 44.9% -0.27 5–8 (38%) 6–10 (38%) 95.4 -0.78 1997 1837 150.1 — — — — +27 -234 -204 51.5% 0.00 14–8 (64%) 11–8 (58%) 106.9 -1.35
22 2006 1748 143.1 +1.45 -3.76 0.920 48.0% +2 -155 -135 52.2% +0.09 7–6 (54%) 3–8 (27%) 98.8 -0.70 1998 1862 153.1 — — — — +57 -206 -239 60.3% +0.68 12–5 (71%) 9–4 (69%) 107.7 +0.41
23 2007 1724 135.6 +1.83 -2.92 0.911 48.6% -2 -43 -124 50.7% +0.19 5–4 (56%) 2–6 (25%) 98.6 -2.25 1999 1808 151.0 — — — — +46 -168 -203 53.0% +0.21 8–7 (53%) 4–4 (50%) 99.6 -1.12
24 2008 1755 134.8 +4.41 +0.22 1.111 52.1% -11 -77 -81 58.1% +0.69 2–4 (33%) 2–2 (50%) 96.0 -0.47 2000 1679 137.5 — — — — +24 +5 -92 46.1% -0.54 5–7 (42%) 7–5 (58%) 99.7 -0.80
25 2009 1888 154.7 +5.39 +0.57 1.119 52.5% -7 -129 -180 63.0% +0.94 10–11 (48%) 10–5 (67%) 104.0 -1.65 2001 1719 138.7 — — — — +19 -57 -121 53.7% +0.17 10–11 (48%) 6–2 (75%) 102.9 -0.48
26 2010 1932 159.5 +7.09 +0.23 1.156 52.9% -40 +78 -207 63.9% +1.12 14–6 (70%) 10–9 (53%) 107.5 -1.75 2002 1755 141.6 — — — — +15 -109 -67 56.1% +0.32 9–8 (53%) 8–6 (57%) 100.6 -0.40
27 2011 1968 158.2 +8.42 -0.10 1.193 53.4% -20 +28 -223 64.2% +1.11 12–7 (63%) 8–6 (57%) 102.1 -0.95 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 2012 1873 150.5 +5.95 +0.23 1.134 52.5% +7 +160 -197 58.8% +0.71 13–11 (54%) 8–14 (36%) 93.9 +1.71 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 2013 1904 152.1 +4.49 +1.51 1.138 52.7% +14 +46 -214 63.6% +1.01 11–9 (55%) 6–4 (60%) 99.3 +1.39 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 2014 1860 149.0 +5.95 +0.29 1.140 52.5% +6 +80 -205 59.0% +0.65 6–12 (33%) 7–6 (54%) 90.0 -1.01 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 2015 1783 141.4 +5.95 +0.02 1.201 53.3% -26 +170 -121 55.7% +0.79 10–6 (63%) 3–8 (27%) 96.9 -0.45 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 2016 1702 133.6 +1.07 -2.01 0.933 48.8% -49 +307 -57 50.9% -0.12 12–4 (75%) 7–8 (47%) 102.9 -0.09 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 2017 1732 137.4 +3.91 +0.24 1.115 52.4% -86 +251 — 55.6% +0.41 6–11 (35%) 6–0 (100%) 99.3 +0.51 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
34 2018 1655 126.0 +1.35 -4.20 0.900 48.1% -67 +228 +30 40.0% -0.64 3–4 (43%) 2–7 (22%) 93.2 -0.94 — — — — — — — — — — — — — — — —
35 2019 1631 116.9 -0.46 -2.06 0.900 47.9% -38 +150 +51 46.7% -0.59 6–5 (55%) 6–0 (100%) 106.9 +0.48 — — — — — — — — — — — — — — — —
36 2020 1607 111.3 -1.57 -0.87 0.795 45.4% -26 — — 25.0% -2.25 — 2–0 — -0.08 — — — — — — — — — — — — — — — —
37 2021 1518 99.9 -2.40 -3.51 0.673 42.9% -10 — +80 20.0% -2.40 0–3 (0%) — — +0.44 — — — — — — — — — — — — — — — —
38 2022 1506 100.9 -2.15 -2.55 0.791 45.1% +8 — — 22.2% -1.55 1–0 0–3 (0%) — +0.30 — — — — — — — — — — — — — — — —
Career — 2072 148.5 +4.28 -0.68 1.059 51.2% -13 +101 -98 55.2% +0.39 127–118 (52%) 95–103 (48%) 95.8 -0.97 — 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.