H2H data updated: 2026-09-12 00:00 UTC
Sandra Wasserman holds a 1–0 lead over Michelle Jaggard Lai 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 1990 Tokyo Japan Open round of 32 6-4 6-3.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Sandra Wasserman | 6-4 6-3 | Michelle Jaggard Lai | Match data | Apr 13, 1990* | R32 | Tokyo Japan Open | Tier IV → 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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Michelle Jaggard Lai | — | — | — | 1,639 | 61 | 105 | 36.7% | 0 | 0 | 0 | 0 | 0 | 0 |
| Sandra Wasserman | #747 | #48 | 22 | 1,701 | 77 | 93 | 45.3% | 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 | Michelle Jaggard Lai | Sandra Wasserman | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | 1985 | 0–4 | 0.0% | — | 1,459 | 0 | 0 | — | — | — | — | — | — | — |
| 17 | 1986 | 0–2 | 0.0% | — | 1,442 | 0 | 0 | 1987 | 7–4 | 63.6% | #123 | 1,596 | 0 | 0 |
| 18 | 1987 | 8–10 | 44.4% | — | 1,510 | 0 | 0 | 1988 | 19–18 | 51.4% | #63 | 1,643 | 0 | 0 |
| 19 | 1988 | 9–16 | 36.0% | — | 1,515 | 0 | 0 | 1989 | 18–17 | 51.4% | #69 | 1,632 | 0 | 0 |
| 20 | 1989 | 9–16 | 36.0% | — | 1,499 | 0 | 0 | 1990 | 12–17 | 41.4% | #103 | 1,607 | 0 | 0 |
| 21 | 1990 | 6–12 | 33.3% | — | 1,505 | 0 | 0 | 1991 | 6–10 | 37.5% | #131 | 1,583 | 0 | 0 |
| 22 | 1991 | 3–6 | 33.3% | — | 1,524 | 0 | 0 | 1992 | 3–8 | 27.3% | #135 | 1,538 | 0 | 0 |
| 23 | 1992 | 3–4 | 42.9% | — | 1,555 | 0 | 0 | 1993 | 8–11 | 42.1% | #112 | 1,556 | 0 | 0 |
| 24 | 1993 | 14–19 | 42.4% | — | 1,576 | 0 | 0 | 1994 | 4–8 | 33.3% | #198 | 1,540 | 0 | 0 |
| 25 | 1994 | 9–16 | 36.0% | — | 1,559 | 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 | Michelle Jaggard Lai | Sandra Wasserman | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 16 | 1985 | — | — | — | — | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 17 | 1986 | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 1987 | 1 | 1 | 2 | 50.0% | 6 | 3 | 9 | 66.7% | — | — | — | — | — | — | — | — |
| 18 | 1987 | 7 | 4 | 11 | 63.6% | 0 | 1 | 1 | 0.0% | 1 | 4 | 5 | 20.0% | 0 | 1 | 1 | 0.0% | 1988 | 8 | 5 | 13 | 61.5% | 10 | 10 | 20 | 50.0% | 1 | 3 | 4 | 25.0% | — | — | — | — |
| 19 | 1988 | 8 | 10 | 18 | 44.4% | 0 | 1 | 1 | 0.0% | 1 | 5 | 6 | 16.7% | — | — | — | — | 1989 | 13 | 8 | 21 | 61.9% | 4 | 8 | 12 | 33.3% | — | — | — | — | 1 | 1 | 2 | 50.0% |
| 20 | 1989 | 6 | 9 | 15 | 40.0% | 1 | 3 | 4 | 25.0% | 2 | 3 | 5 | 40.0% | 0 | 1 | 1 | 0.0% | 1990 | 11 | 10 | 21 | 52.4% | 0 | 4 | 4 | 0.0% | 0 | 1 | 1 | 0.0% | 1 | 2 | 3 | 33.3% |
| 21 | 1990 | 5 | 7 | 12 | 41.7% | 1 | 3 | 4 | 25.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 1991 | 1 | 4 | 5 | 20.0% | 4 | 5 | 9 | 44.4% | — | — | — | — | 1 | 1 | 2 | 50.0% |
| 22 | 1991 | 1 | 2 | 3 | 33.3% | 0 | 2 | 2 | 0.0% | 1 | 1 | 2 | 50.0% | 1 | 1 | 2 | 50.0% | 1992 | 1 | 2 | 3 | 33.3% | 2 | 4 | 6 | 33.3% | — | — | — | — | 0 | 2 | 2 | 0.0% |
| 23 | 1992 | 1 | 3 | 4 | 25.0% | — | — | — | — | 2 | 1 | 3 | 66.7% | — | — | — | — | 1993 | 4 | 6 | 10 | 40.0% | 3 | 4 | 7 | 42.9% | 1 | 1 | 2 | 50.0% | — | — | — | — |
| 24 | 1993 | 13 | 12 | 25 | 52.0% | 0 | 1 | 1 | 0.0% | 1 | 3 | 4 | 25.0% | 0 | 3 | 3 | 0.0% | 1994 | 3 | 7 | 10 | 30.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — |
| 25 | 1994 | 8 | 12 | 20 | 40.0% | 0 | 2 | 2 | 0.0% | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 49 | 60 | 109 | 45.0% | 2 | 15 | 17 | 11.8% | 9 | 21 | 30 | 30.0% | 1 | 8 | 9 | 11.1% | — | 42 | 43 | 85 | 49.4% | 30 | 39 | 69 | 43.5% | 2 | 5 | 7 | 28.6% | 3 | 6 | 9 | 33.3% |
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 | Michelle Jaggard Lai | Sandra Wasserman | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 1985 | 1459 | 99.1 | — | — | — | — | — | — | — | 11.1% | -2.89 | 0–1 | 1–0 | — | -0.14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 17 | 1986 | 1442 | 96.6 | — | — | — | — | — | — | — | 20.0% | -2.60 | 0–1 | 1–1 | — | +0.04 | 1987 | 1596 | 125.6 | — | — | — | — | — | +39 | — | 64.0% | +1.32 | 1–2 (33%) | 1–1 | — | +0.79 |
| 18 | 1987 | 1511 | 110.2 | — | — | — | — | +92 | — | +3 | 43.6% | -0.13 | 2–3 (40%) | 1–4 (20%) | 96.5 | +1.25 | 1988 | 1644 | 115.1 | — | — | — | — | -32 | +14 | -112 | 51.1% | +0.01 | 8–8 (50%) | 7–4 (64%) | 100.3 | +4.28 |
| 19 | 1988 | 1515 | 101.4 | — | — | — | — | +48 | — | -67 | 36.4% | -0.91 | 3–2 (60%) | 2–0 | — | +1.65 | 1989 | 1633 | 118.0 | — | — | — | — | +44 | -43 | — | 50.6% | +0.13 | 5–6 (45%) | 0–5 (0%) | 96.1 | +3.24 |
| 20 | 1989 | 1499 | 106.6 | — | — | — | — | +14 | -24 | -14 | 37.9% | -0.86 | 4–4 (50%) | 1–0 | — | +2.26 | 1990 | 1608 | 122.9 | — | — | — | — | +64 | -90 | — | 44.1% | -0.71 | 4–6 (40%) | 3–1 (75%) | 98.4 | -0.61 |
| 21 | 1990 | 1505 | 109.2 | — | — | — | — | +20 | -35 | — | 27.8% | -1.64 | 2–0 | — | — | -0.23 | 1991 | 1583 | 107.2 | — | — | — | — | +19 | -21 | — | 36.1% | -1.03 | 3–1 (75%) | 2–3 (40%) | 101.4 | +0.37 |
| 22 | 1991 | 1525 | 117.5 | — | — | — | — | -2 | — | — | 36.8% | -1.00 | 0–1 | 2–0 | — | -0.56 | 1992 | 1539 | 107.3 | — | — | — | — | +30 | +11 | — | 33.3% | -1.13 | 0–2 | 0–1 | — | +0.37 |
| 23 | 1992 | 1555 | 114.2 | — | — | — | — | -33 | — | -14 | 37.5% | -1.06 | 2–0 | — | — | -0.27 | 1993 | 1556 | 112.7 | — | — | — | — | +1 | +2 | — | 42.9% | -0.43 | 2–2 (50%) | 1–2 (33%) | — | +0.49 |
| 24 | 1993 | 1577 | 130.3 | — | — | — | — | +19 | — | -2 | 42.3% | -0.40 | 7–5 (58%) | 6–4 (60%) | 105.2 | -0.76 | 1994 | 1540 | 109.0 | — | — | — | — | -5 | — | — | 30.8% | -1.23 | 2–2 (50%) | 2–2 (50%) | 101.0 | -0.21 |
| 25 | 1994 | 1559 | 117.1 | — | — | — | — | +19 | — | — | 40.4% | -0.60 | 2–5 (29%) | 3–2 (60%) | 98.9 | -0.39 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1639 | 117.7 | — | — | — | — | +28 | -30 | -22 | 37.6% | -0.82 | 22–22 (50%) | 17–11 (61%) | 107.4 | +1.72 | — | 1702 | 120.3 | — | — | — | — | +26 | -5 | -112 | 45.9% | -0.30 | 25–29 (46%) | 16–19 (46%) | 95.3 | +5.13 |
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 |
|---|---|---|---|---|---|
| Sabine Appelmans | 2 | 2 | 4 | Apr 14, 1994 | H2H |
| Lori Mcneil | 0 | 3 | 3 | Oct 13, 1994 | H2H |
| Pam Shriver | 0 | 3 | 3 | Jun 10, 1993 | H2H |
| Bettina Fulco | 1 | 2 | 3 | Mar 13, 1993 | H2H |
| Manon Bollegraf | 3 | 0 | 3 | Jan 15, 1992 | H2H |
| 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 |