H2H data updated: 2026-09-14 00:00 UTC
Ai Sugiyama holds a 1–0 lead over Sandra Kloesel in their WTA head-to-head. Across 1 main-draw meeting, Ai Sugiyama leads 1–0 on carpet. Most recently, Ai Sugiyama won the 1998 Leipzig round of 32 6-4 6-3.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Ai Sugiyama | 6-4 6-3 | Sandra Kloesel | Match data | Nov 5, 1998* | R32 | Leipzig | Tier II → modern equivalent WTA 500 | Carpet |
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.
| 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 |
| Sandra Kloesel | #1,064 | #87 | 400 | 1,515 | 16 | 54 | 22.9% | 0 | 0 | 0 | 0 | 0 | 0 |
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 | Sandra Kloesel | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1992 | 1–4 | 20.0% | #184 | 1,477 | 0 | 0 | 1996 | 1–4 | 20.0% | #172 | 1,487 | 0 | 0 |
| 1993 | 3–8 | 27.3% | #145 | 1,486 | 0 | 0 | 1997 | 0–2 | 0.0% | #117 | 1,476 | 0 | 0 |
| 1994 | 9–11 | 45.0% | #72 | 1,556 | 0 | 0 | 1998 | 2–6 | 25.0% | #177 | 1,463 | 0 | 0 |
| 1995 | 16–17 | 48.5% | #46 | 1,665 | 0 | 0 | 1999 | 2–3 | 40.0% | #150 | 1,489 | 0 | 0 |
| 1996 | 24–19 | 55.8% | #28 | 1,751 | 0 | 0 | 2001 | 0–1 | 0.0% | #393 | 1,471 | 0 | 0 |
| 1997 | 31–25 | 55.4% | #21 | 1,837 | 0 | 1 | 2005 | 2–8 | 20.0% | #101 | 1,461 | 0 | 0 |
| 1998 | 37–21 | 63.8% | #18 | 1,862 | 0 | 3 | 2006 | 4–11 | 26.7% | #96 | 1,475 | 0 | 0 |
| 1999 | 27–23 | 54.0% | #24 | 1,807 | 0 | 3 | 2007 | 4–13 | 23.5% | #164 | 1,422 | 0 | 0 |
| 2000 | 20–25 | 44.4% | #32 | 1,679 | 0 | 3 | 2008 | 1–5 | 16.7% | #158 | 1,402 | 0 | 0 |
| 2001 | 28–25 | 52.8% | #30 | 1,718 | 0 | 3 | 2009 | 0–1 | 0.0% | #745 | 1,391 | 0 | 0 |
| 2002 | 35–26 | 57.4% | #24 | 1,755 | 0 | 3 | — | — | — | — | — | — | — |
| 2003 | 44–25 | 63.8% | #10 | 1,915 | 0 | 5 | — | — | — | — | — | — | — |
| 2004 | 33–23 | 58.9% | #17 | 1,808 | 0 | 6 | — | — | — | — | — | — | — |
| 2005 | 28–27 | 50.9% | #29 | 1,741 | 0 | 6 | — | — | — | — | — | — | — |
| 2006 | 28–25 | 52.8% | #26 | 1,743 | 0 | 6 | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — | — |
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 | Sandra Kloesel | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Carpet | Yr | Hard | Clay | Grass | Carpet | ||||||||||||||||||||||||
| 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% | 1996 | 0 | 2 | 2 | 0.0% | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — |
| 1993 | 2 | 3 | 5 | 40.0% | — | — | — | — | 0 | 2 | 2 | 0.0% | 1 | 3 | 4 | 25.0% | 1997 | — | — | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
| 1994 | 6 | 7 | 13 | 46.2% | — | — | — | — | 0 | 2 | 2 | 0.0% | 3 | 2 | 5 | 60.0% | 1998 | 0 | 1 | 1 | 0.0% | 2 | 4 | 6 | 33.3% | — | — | — | — | 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% | 1999 | 2 | 1 | 3 | 66.7% | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 1996 | 19 | 11 | 30 | 63.3% | 0 | 3 | 3 | 0.0% | 4 | 2 | 6 | 66.7% | 1 | 3 | 4 | 25.0% | 2001 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 1997 | 19 | 13 | 32 | 59.4% | 3 | 5 | 8 | 37.5% | 2 | 2 | 4 | 50.0% | 7 | 5 | 12 | 58.3% | 2005 | 1 | 6 | 7 | 14.3% | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — |
| 1998 | 24 | 9 | 33 | 72.7% | 6 | 5 | 11 | 54.5% | 1 | 2 | 3 | 33.3% | 6 | 5 | 11 | 54.5% | 2006 | 3 | 7 | 10 | 30.0% | 1 | 3 | 4 | 25.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 1999 | 18 | 11 | 29 | 62.1% | 3 | 4 | 7 | 42.9% | 2 | 2 | 4 | 50.0% | 4 | 6 | 10 | 40.0% | 2007 | 0 | 6 | 6 | 0.0% | 4 | 6 | 10 | 40.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 2000 | 11 | 13 | 24 | 45.8% | 6 | 5 | 11 | 54.5% | 1 | 2 | 3 | 33.3% | 2 | 5 | 7 | 28.6% | 2008 | 1 | 1 | 2 | 50.0% | 0 | 4 | 4 | 0.0% | — | — | — | — | — | — | — | — |
| 2001 | 20 | 14 | 34 | 58.8% | 4 | 6 | 10 | 40.0% | 2 | 3 | 5 | 40.0% | 2 | 2 | 4 | 50.0% | 2009 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 2002 | 26 | 16 | 42 | 61.9% | 4 | 6 | 10 | 40.0% | 5 | 3 | 8 | 62.5% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2003 | 29 | 16 | 45 | 64.4% | 7 | 4 | 11 | 63.6% | 4 | 2 | 6 | 66.7% | 4 | 3 | 7 | 57.1% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2004 | 22 | 14 | 36 | 61.1% | 5 | 5 | 10 | 50.0% | 5 | 2 | 7 | 71.4% | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2005 | 20 | 17 | 37 | 54.1% | 7 | 6 | 13 | 53.8% | 1 | 3 | 4 | 25.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2006 | 22 | 18 | 40 | 55.0% | 1 | 3 | 4 | 25.0% | 5 | 3 | 8 | 62.5% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | 7 | 24 | 31 | 22.6% | 9 | 26 | 35 | 25.7% | 0 | 2 | 2 | 0.0% | 0 | 2 | 2 | 0.0% |
Rows are aligned in career order because complete birth data is unavailable. Detailed serve and return statistics available for 170/347 of Ai Sugiyama's and 22/49 of Sandra Kloesel'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.
| Ai Sugiyama | Sandra Kloesel | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% |
| 2003 | 12/69 | 0.8 | 5.8 | 60.8% | 64.3% | 45.1% | 53.4% | 43.3% | 56.6% | 48.3% | 2005 | 2/10 | 1.0 | 3.5 | 64.1% | 59.9% | 48.5% | 12.5% | 16.7% | 55.5% | 43.0% |
| 2004 | 11/56 | 1.2 | 4.5 | 60.8% | 64.1% | 45.3% | 64.6% | 47.8% | 56.5% | 48.7% | 2006 | 7/15 | 2.3 | 4.3 | 68.6% | 59.3% | 40.2% | 56.7% | 35.2% | 53.2% | 35.5% |
| 2005 | 7/55 | 1.4 | 5.0 | 65.8% | 58.7% | 40.3% | 46.6% | 51.4% | 53.1% | 42.6% | 2007 | 8/17 | 1.6 | 4.1 | 60.2% | 55.0% | 41.5% | 49.7% | 45.8% | 49.9% | 39.1% |
| 2006 | 37/53 | 1.3 | 3.7 | 67.8% | 60.4% | 43.2% | 56.7% | 47.8% | 54.8% | 44.7% | 2008 | 4/6 | 1.0 | 5.3 | 66.0% | 59.5% | 32.1% | 50.4% | 35.6% | 50.4% | 40.8% |
| 2007 | 36/38 | 1.2 | 5.6 | 62.8% | 58.7% | 42.4% | 52.3% | 50.3% | 52.7% | 47.1% | 2009 | 1/1 | 0.0 | 4.0 | 71.6% | 58.3% | 31.6% | 50.0% | 37.5% | 50.7% | 39.7% |
| 2008 | 41/48 | 0.9 | 5.3 | 63.3% | 60.9% | 43.5% | 52.1% | 43.6% | 54.4% | 45.4% | — | —/— | — | — | — | — | — | — | — | — | — |
| 2009 | 26/28 | 0.8 | 4.9 | 65.4% | 58.3% | 42.7% | 43.8% | 45.1% | 52.8% | 41.1% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | 170/782 | 1.1 | 4.9 | 64.3% | 60.3% | 43.2% | 52.6% | 46.7% | 54.1% | 45.2% | Career | 22/70 | 1.6 | 4.3 | 64.8% | 57.8% | 39.6% | 48.7% | 37.5% | 51.6% | 38.6% |
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 | Sandra Kloesel | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 1996 | 1488 | 100.9 | — | — | — | — | — | +71 | — | 20.0% | -2.40 | — | — | — | -0.06 |
| 1993 | 1487 | 125.5 | — | — | — | — | +44 | — | — | 37.0% | -0.89 | 1–4 (20%) | — | — | -0.26 | 1997 | 1477 | 105.2 | — | — | — | — | — | — | — | 20.0% | -2.20 | 0–1 | — | — | -0.09 |
| 1994 | 1557 | 120.7 | — | — | — | — | +41 | — | — | 47.8% | +0.13 | 4–4 (50%) | 1–2 (33%) | — | +1.49 | 1998 | 1463 | 110.0 | — | — | — | — | — | +40 | — | 29.4% | -1.59 | 0–1 | 0–3 (0%) | — | +0.27 |
| 1995 | 1665 | 135.9 | — | — | — | — | -9 | -11 | — | 49.3% | +0.23 | 4–7 (36%) | 3–0 (100%) | 101.9 | +0.28 | 1999 | 1490 | 119.9 | — | — | — | — | +47 | — | — | 40.0% | -0.90 | — | 1–1 | — | +0.21 |
| 1996 | 1751 | 143.7 | — | — | — | — | -8 | -156 | -152 | 54.3% | +0.29 | 5–5 (50%) | 3–3 (50%) | 99.1 | +0.30 | 2001 | 1472 | 98.4 | — | — | — | — | — | — | — | 33.3% | -2.00 | 0–1 | 1–0 | — | +0.19 |
| 1997 | 1837 | 150.1 | — | — | — | — | +27 | -234 | -204 | 51.5% | 0.00 | 14–8 (64%) | 11–8 (58%) | 106.9 | -1.35 | 2005 | 1461 | 111.2 | +0.22 | -0.07 | 0.967 | 48.6% | +21 | 0 | — | 26.1% | -1.43 | 1–2 (33%) | 1–1 | — | -0.58 |
| 1998 | 1862 | 153.1 | — | — | — | — | +57 | -206 | -239 | 60.3% | +0.68 | 12–5 (71%) | 9–4 (69%) | 107.7 | +0.41 | 2006 | 1475 | 113.8 | -1.03 | -3.16 | 0.758 | 44.6% | +14 | -18 | — | 32.4% | -1.27 | 3–6 (33%) | 2–3 (40%) | 99.0 | -0.63 |
| 1999 | 1808 | 151.0 | — | — | — | — | +46 | -168 | -203 | 53.0% | +0.21 | 8–7 (53%) | 4–4 (50%) | 99.6 | -1.12 | 2007 | 1423 | 99.6 | -3.29 | -2.70 | 0.781 | 44.4% | +2 | +26 | — | 25.7% | -1.17 | 0–3 (0%) | 0–5 (0%) | 91.9 | +0.41 |
| 2000 | 1679 | 137.5 | — | — | — | — | +24 | +5 | -92 | 46.1% | -0.54 | 5–7 (42%) | 7–5 (58%) | 99.7 | -0.80 | 2008 | 1403 | 98.0 | -0.92 | -0.88 | 0.823 | 45.8% | — | -4 | — | 21.4% | -2.00 | 1–1 | 0–1 | — | +0.04 |
| 2001 | 1719 | 138.7 | — | — | — | — | +19 | -57 | -121 | 53.7% | +0.17 | 10–11 (48%) | 6–2 (75%) | 102.9 | -0.48 | 2009 | 1391 | 97.4 | +1.05 | +1.22 | 0.806 | 45.4% | — | — | — | 0.0% | -2.50 | — | — | — | +0.10 |
| 2002 | 1755 | 141.6 | — | — | — | — | +15 | -109 | -67 | 56.1% | +0.32 | 9–8 (53%) | 8–6 (57%) | 100.6 | -0.40 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | 1515 | 111.6 | -1.62 | -2.10 | 0.798 | 45.1% | +18 | +21 | — | 27.6% | -1.48 | 5–15 (25%) | 5–14 (26%) | 88.1 | -0.20 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Lisa Raymond | 7 | 8 | 15 | Aug 21, 2003 | H2H |
| Daniela Hantuchova | 6 | 5 | 11 | Jun 28, 2009 | H2H |
| Mary Pierce | 5 | 6 | 11 | Oct 26, 2006 | H2H |
| Magdalena Maleeva | 7 | 4 | 11 | May 11, 2005 | H2H |
| Amélie Mauresmo | 0 | 10 | 10 | Aug 27, 2009 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Flavia Pennetta | 0 | 2 | 2 | Jul 10, 2008 | H2H |
| Tamarine Tanasugarn | 1 | 1 | 2 | May 10, 2007 | H2H |
| Mara Santangelo | 1 | 1 | 2 | Mar 1, 2007 | H2H |
| Kim Clijsters | 0 | 2 | 2 | Nov 4, 2006 | H2H |
| Marion Bartoli | 1 | 1 | 2 | May 18, 2006 | H2H |