H2H data updated: 2026-09-07 00:00 UTC
Sandra Wasserman holds a 1–0 lead over Hester Witvoet in their WTA head-to-head. Across 1 main-draw meeting, Sandra Wasserman leads 1–0 on hard courts. Most recently, Sandra Wasserman won the 1989 Singapore round of 32 6-3 6-4.
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 |
|---|---|---|---|---|---|---|---|---|
| Sandra Wasserman | 6-3 6-4 | Hester Witvoet | Match data | Apr 13, 1989* | R32 | Singapore | 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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sandra Wasserman | #747 | #48 | 22 | 1,701 | 77 | 93 | 45.3% | 0 | 0 | 0 | 0 | 0 | 0 |
| Hester Witvoet | — | — | — | 1,609 | 11 | 22 | 33.3% | 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.
| Age | Sandra Wasserman | Hester Witvoet | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 17 | 1987 | 7–4 | 63.6% | #123 | 1,596 | 0 | 0 | — | — | — | — | — | — | — |
| 18 | 1988 | 19–18 | 51.4% | #63 | 1,643 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | 1989 | 18–17 | 51.4% | #69 | 1,632 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 1990 | 12–17 | 41.4% | #103 | 1,607 | 0 | 0 | 1988 | 11–13 | 45.8% | — | 1,571 | 0 | 0 |
| 21 | 1991 | 6–10 | 37.5% | #131 | 1,583 | 0 | 0 | 1989 | 0–9 | 0.0% | — | 1,457 | 0 | 0 |
| 22 | 1992 | 3–8 | 27.3% | #135 | 1,538 | 0 | 0 | — | — | — | — | — | — | — |
| 23 | 1993 | 8–11 | 42.1% | #112 | 1,556 | 0 | 0 | — | — | — | — | — | — | — |
| 24 | 1994 | 4–8 | 33.3% | #198 | 1,540 | 0 | 0 | — | — | — | — | — | — | — |
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 | Sandra Wasserman | Hester Witvoet | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 17 | 1987 | 1 | 1 | 2 | 50.0% | 6 | 3 | 9 | 66.7% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 1988 | 8 | 5 | 13 | 61.5% | 10 | 10 | 20 | 50.0% | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 1989 | 13 | 8 | 21 | 61.9% | 4 | 8 | 12 | 33.3% | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 1990 | 11 | 10 | 21 | 52.4% | 0 | 4 | 4 | 0.0% | 0 | 1 | 1 | 0.0% | 1 | 2 | 3 | 33.3% | 1988 | 4 | 3 | 7 | 57.1% | 1 | 3 | 4 | 25.0% | 4 | 4 | 8 | 50.0% | 2 | 3 | 5 | 40.0% |
| 21 | 1991 | 1 | 4 | 5 | 20.0% | 4 | 5 | 9 | 44.4% | — | — | — | — | 1 | 1 | 2 | 50.0% | 1989 | 0 | 9 | 9 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 1992 | 1 | 2 | 3 | 33.3% | 2 | 4 | 6 | 33.3% | — | — | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 1993 | 4 | 6 | 10 | 40.0% | 3 | 4 | 7 | 42.9% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 1994 | 3 | 7 | 10 | 30.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 42 | 43 | 85 | 49.4% | 30 | 39 | 69 | 43.5% | 2 | 5 | 7 | 28.6% | 3 | 6 | 9 | 33.3% | — | 4 | 12 | 16 | 25.0% | 1 | 3 | 4 | 25.0% | 4 | 4 | 8 | 50.0% | 2 | 3 | 5 | 40.0% |
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 | Sandra Wasserman | Hester Witvoet | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 17 | 1987 | 1596 | 125.6 | — | — | — | — | — | +39 | — | 64.0% | +1.32 | 1–2 (33%) | 1–1 | — | +0.79 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 1988 | 1644 | 115.1 | — | — | — | — | -32 | +14 | -112 | 51.1% | +0.01 | 8–8 (50%) | 7–4 (64%) | 100.3 | +4.28 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 1989 | 1633 | 118.0 | — | — | — | — | +44 | -43 | — | 50.6% | +0.13 | 5–6 (45%) | 0–5 (0%) | 96.1 | +3.24 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 1990 | 1608 | 122.9 | — | — | — | — | +64 | -90 | — | 44.1% | -0.71 | 4–6 (40%) | 3–1 (75%) | 98.4 | -0.61 | 1988 | 1571 | 124.7 | — | — | — | — | +23 | -58 | +38 | 45.5% | -0.18 | 4–3 (57%) | 4–5 (44%) | 101.1 | +1.01 |
| 21 | 1991 | 1583 | 107.2 | — | — | — | — | +19 | -21 | — | 36.1% | -1.03 | 3–1 (75%) | 2–3 (40%) | 101.4 | +0.37 | 1989 | 1458 | 93.5 | — | — | — | — | -1 | — | — | 10.0% | -2.70 | 0–2 | 1–2 (33%) | — | +0.65 |
| 22 | 1992 | 1539 | 107.3 | — | — | — | — | +30 | +11 | — | 33.3% | -1.13 | 0–2 | 0–1 | — | +0.37 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 1993 | 1556 | 112.7 | — | — | — | — | +1 | +2 | — | 42.9% | -0.43 | 2–2 (50%) | 1–2 (33%) | — | +0.49 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 1994 | 1540 | 109.0 | — | — | — | — | -5 | — | — | 30.8% | -1.23 | 2–2 (50%) | 2–2 (50%) | 101.0 | -0.21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1702 | 120.3 | — | — | — | — | +26 | -5 | -112 | 45.9% | -0.30 | 25–29 (46%) | 16–19 (46%) | 95.3 | +5.13 | — | 1609 | 113.8 | — | — | — | — | +13 | -58 | +38 | 36.0% | -0.85 | 4–5 (44%) | 5–7 (42%) | 97.9 | +5.03 |
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 |
|---|---|---|---|---|---|
| Patty Fendick | 0 | 4 | 4 | Apr 21, 1994 | H2H |
| Raffaella Reggi Concato | 0 | 4 | 4 | Nov 2, 1990 | H2H |
| Sandra Cecchini | 1 | 2 | 3 | Sep 1, 1993 | H2H |
| Helen Kelesi | 1 | 2 | 3 | Apr 15, 1993 | H2H |
| Manuela Maleeva Fragniere | 0 | 3 | 3 | Jan 22, 1993 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Sylvia Hanika | 0 | 2 | 2 | Jun 24, 1988 | H2H |
| Sabine Appelmans | 0 | 1 | 1 | Apr 27, 1989 | H2H |
| Marianne Werdel Witmeyer | 0 | 1 | 1 | Apr 20, 1989 | H2H |
| Sandra Wasserman | 0 | 1 | 1 | Apr 13, 1989 | H2H |
| Raffaella Reggi Concato | 0 | 1 | 1 | Mar 21, 1989 | H2H |