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

Ai Sugiyama vs Marianne Werdel Witmeyer H2H: 0-1

Marianne Werdel Witmeyer holds a 1–0 lead over Ai Sugiyama in their WTA head-to-head. Across 1 main-draw meeting, Marianne Werdel Witmeyer leads 1–0 on hard courts. Most recently, Marianne Werdel Witmeyer won the 1995 Japan Women's Open round of 32 6-3 6-4.

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Ai Sugiyama
JPN Age 51 Right-Handed 163 cm / 5'4"
H2H
0 – 1
1 main-draw meetings
Marianne Werdel Witmeyer
USA

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Marianne Werdel Witmeyer 6-3 6-4 Ai Sugiyama #89 Match data Apr 13, 1995* R32 Japan Women's Open 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
Ai Sugiyama #97 #8 2,400 1,951 416 366 53.2% 0 0 0 2 4 6
Marianne Werdel Witmeyer — — — 1,850 181 203 47.1% 0 0 0 0 1 1

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.

Ai Sugiyama Marianne Werdel Witmeyer
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1992 1–4 20.0% #184 1,477 0 0 1983 0–1 0.0% — 1,492 0 0
1993 3–8 27.3% #145 1,486 0 0 1984 0–1 0.0% — 1,477 0 0
1994 9–11 45.0% #72 1,556 0 0 1985 6–3 66.7% — 1,541 0 1
1995 16–17 48.5% #46 1,665 0 0 1986 13–10 56.5% — 1,683 0 1
1996 24–19 55.8% #28 1,751 0 0 1987 10–17 37.0% — 1,659 0 1
1997 31–25 55.4% #21 1,837 0 1 1988 11–20 35.5% — 1,586 0 1
1998 37–21 63.8% #18 1,862 0 3 1989 13–17 43.3% — 1,592 0 1
1999 27–23 54.0% #24 1,807 0 3 1990 18–18 50.0% — 1,745 0 1
2000 20–25 44.4% #32 1,679 0 3 1991 21–19 52.5% — 1,739 0 1
2001 28–25 52.8% #30 1,718 0 3 1992 13–17 43.3% — 1,697 0 1
2002 35–26 57.4% #24 1,755 0 3 1993 21–18 53.8% — 1,748 0 1
2003 44–25 63.8% #10 1,915 0 5 1994 22–22 50.0% — 1,773 0 1
2004 33–23 58.9% #17 1,808 0 6 1995 20–18 52.6% — 1,787 0 1
2005 28–27 50.9% #29 1,741 0 6 1996 8–18 30.8% — 1,665 0 1
2006 28–25 52.8% #26 1,743 0 6 1997 5–4 55.6% — 1,673 0 1
2007 17–21 44.7% #38 1,633 0 6 — — — — — — —
2008 26–22 54.2% #31 1,713 0 6 — — — — — — —
2009 9–19 32.1% #97 1,627 0 6 — — — — — — —

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.

Ai Sugiyama Marianne Werdel Witmeyer
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 %
1992 0 3 3 0.0% — — — — — — — — 1 1 2 50.0% 1983 — — — — 0 1 1 0.0% — — — — — — — —
1993 2 3 5 40.0% — — — — 0 2 2 0.0% 1 3 4 25.0% 1984 — — — — — — — — — — — — 0 1 1 0.0%
1994 6 7 13 46.2% — — — — 0 2 2 0.0% 3 2 5 60.0% 1985 1 2 3 33.3% — — — — — — — — — — — —
1995 5 8 13 38.5% 6 4 10 60.0% 0 2 2 0.0% 5 3 8 62.5% 1986 10 8 18 55.6% — — — — — — — — 3 2 5 60.0%
1996 19 11 30 63.3% 0 3 3 0.0% 4 2 6 66.7% 1 3 4 25.0% 1987 2 6 8 25.0% 0 2 2 0.0% 2 4 6 33.3% 6 5 11 54.5%
1997 19 13 32 59.4% 3 5 8 37.5% 2 2 4 50.0% 7 5 12 58.3% 1988 9 16 25 36.0% — — — — 1 3 4 25.0% 1 1 2 50.0%
1998 24 9 33 72.7% 6 5 11 54.5% 1 2 3 33.3% 6 5 11 54.5% 1989 11 14 25 44.0% 1 1 2 50.0% — — — — 1 2 3 33.3%
1999 18 11 29 62.1% 3 4 7 42.9% 2 2 4 50.0% 4 6 10 40.0% 1990 14 12 26 53.8% 1 2 3 33.3% 0 1 1 0.0% 3 3 6 50.0%
2000 11 13 24 45.8% 6 5 11 54.5% 1 2 3 33.3% 2 5 7 28.6% 1991 16 11 27 59.3% 1 2 3 33.3% 2 2 4 50.0% 2 4 6 33.3%
2001 20 14 34 58.8% 4 6 10 40.0% 2 3 5 40.0% 2 2 4 50.0% 1992 11 12 23 47.8% 0 2 2 0.0% 1 2 3 33.3% 1 1 2 50.0%
2002 26 16 42 61.9% 4 6 10 40.0% 5 3 8 62.5% 0 1 1 0.0% 1993 14 10 24 58.3% 1 2 3 33.3% 2 2 4 50.0% 4 4 8 50.0%
2003 29 16 45 64.4% 7 4 11 63.6% 4 2 6 66.7% 4 3 7 57.1% 1994 15 13 28 53.6% 1 2 3 33.3% 2 2 4 50.0% 4 5 9 44.4%
2004 22 14 36 61.1% 5 5 10 50.0% 5 2 7 71.4% 1 2 3 33.3% 1995 14 11 25 56.0% 1 3 4 25.0% 1 2 3 33.3% 4 2 6 66.7%
2005 20 17 37 54.1% 7 6 13 53.8% 1 3 4 25.0% 0 1 1 0.0% 1996 3 10 13 23.1% 1 3 4 25.0% 0 2 2 0.0% 4 3 7 57.1%
2006 22 18 40 55.0% 1 3 4 25.0% 5 3 8 62.5% 0 1 1 0.0% 1997 5 4 9 55.6% — — — — — — — — — — — —
2007 10 15 25 40.0% 3 2 5 60.0% 2 3 5 40.0% 2 1 3 66.7% — — — — — — — — — — — — — — — — —
2008 20 15 35 57.1% 4 5 9 44.4% 2 2 4 50.0% — — — — — — — — — — — — — — — — — — — — —
2009 7 13 20 35.0% 0 4 4 0.0% 2 2 4 50.0% — — — — — — — — — — — — — — — — — — — — —
Career 280 216 496 56.5% 59 67 126 46.8% 38 39 77 49.4% 39 44 83 47.0% Career 125 129 254 49.2% 7 20 27 25.9% 11 20 31 35.5% 33 33 66 50.0%

Advanced Statistics Comparison by Career Season

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

Ai Sugiyama Marianne Werdel Witmeyer
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
1992 1478 102.6 — — — — +34 — — 30.8% -1.31 1–2 (33%) 0–2 — +0.31 1983 1492 100.4 — — — — — — — 0.0% -2.50 — 0–1 — -0.02
1993 1487 125.5 — — — — +44 — — 37.0% -0.89 1–4 (20%) — — -0.26 1984 1478 96.1 — — — — — — — 0.0% -4.00 — — — +0.29
1994 1557 120.7 — — — — +41 — — 47.8% +0.13 4–4 (50%) 1–2 (33%) — +1.49 1985 1542 112.3 — — — — +15 — — 63.2% +0.89 1–0 0–1 — +0.37
1995 1665 135.9 — — — — -9 -11 — 49.3% +0.23 4–7 (36%) 3–0 (100%) 101.9 +0.28 1986 1683 123.1 — — — — +21 — — 50.0% -0.34 8–2 (80%) 5–1 (83%) — +1.30
1996 1751 143.7 — — — — -8 -156 -152 54.3% +0.29 5–5 (50%) 3–3 (50%) 99.1 +0.30 1987 1659 129.2 — — — — +44 — -85 41.9% -0.77 2–6 (25%) 3–0 (100%) — -0.83
1997 1837 150.1 — — — — +27 -234 -204 51.5% 0.00 14–8 (64%) 11–8 (58%) 106.9 -1.35 1988 1587 119.6 — — — — +2 — -37 37.3% -1.03 2–3 (40%) 3–2 (60%) 100.4 -1.05
1998 1862 153.1 — — — — +57 -206 -239 60.3% +0.68 12–5 (71%) 9–4 (69%) 107.7 +0.41 1989 1592 119.9 — — — — -6 — — 44.1% -0.25 4–4 (50%) 3–4 (43%) 99.6 +2.41
1999 1808 151.0 — — — — +46 -168 -203 53.0% +0.21 8–7 (53%) 4–4 (50%) 99.6 -1.12 1990 1746 136.3 — — — — +8 -257 — 51.7% +0.10 7–10 (41%) 6–4 (60%) 103.1 -0.70
2000 1679 137.5 — — — — +24 +5 -92 46.1% -0.54 5–7 (42%) 7–5 (58%) 99.7 -0.80 1991 1740 132.5 — — — — +15 -243 -169 48.9% -0.13 10–4 (71%) 5–4 (56%) 103.3 +0.98
2001 1719 138.7 — — — — +19 -57 -121 53.7% +0.17 10–11 (48%) 6–2 (75%) 102.9 -0.48 1992 1697 133.3 — — — — +32 — -146 48.5% 0.00 3–7 (30%) 4–1 (80%) 98.1 +0.32
2002 1755 141.6 — — — — +15 -109 -67 56.1% +0.32 9–8 (53%) 8–6 (57%) 100.6 -0.40 1993 1749 139.9 — — — — +28 -270 -150 51.6% +0.31 8–5 (62%) 2–2 (50%) 101.6 -0.37
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 1994 1773 143.7 — — — — +15 -260 -181 48.5% -0.08 9–6 (60%) 3–2 (60%) — -0.29
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 1995 1788 149.0 — — — — +45 -292 — 54.1% +0.31 5–6 (45%) 3–2 (60%) 101.2 +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 1996 1666 124.9 — — — — +54 -192 — 31.6% -1.28 3–2 (60%) 2–0 — +0.43
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 1997 1673 119.1 — — — — +35 — — 52.6% +0.37 1–2 (33%) 0–1 — -0.07
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 — — — — — — — — — — — — — — — —
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 — — — — — — — — — — — — — — — —
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 — — — — — — — — — — — — — — — —
Career 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 1850 139.7 — — — — +22 -251 -124 47.3% -0.20 63–57 (53%) 39–25 (61%) 108.6 +0.74

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.