H2H data updated: 2026-09-12 00:00 UTC
Iwona Kuczynska holds a 1–0 lead over Rene Simpson in their WTA head-to-head. Across 1 main-draw meeting, Iwona Kuczynska leads 1–0 on clay. Most recently, Iwona Kuczynska won the 1989 Berlin Open round of 64 2-6 6-1 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 |
|---|---|---|---|---|---|---|---|---|
| Iwona Kuczynska | 2-6 6-1 6-3 | Rene Simpson | Match data | May 17, 1989* | R64 | Berlin Open | WTA 500 | Clay |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rene Simpson | #546 | #70 | 256 | 1,663 | 44 | 83 | 34.6% | 0 | 0 | 0 | 0 | 0 | 0 |
| Iwona Kuczynska | — | — | — | 1,590 | 27 | 48 | 36.0% | 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 | Rene Simpson | Iwona Kuczynska | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 20 | — | — | — | — | — | — | — | 1981 | 1–3 | 25.0% | — | 1,481 | 0 | 0 |
| 21 | — | — | — | — | — | — | — | 1982 | 2–6 | 25.0% | — | 1,432 | 0 | 0 |
| 22 | 1988 | 5–3 | 62.5% | #132 | 1,558 | 0 | 0 | 1983 | 1–3 | 25.0% | — | 1,433 | 0 | 0 |
| 23 | 1989 | 11–17 | 39.3% | #109 | 1,619 | 0 | 0 | — | — | — | — | — | — | — |
| 24 | 1990 | 2–8 | 20.0% | #180 | 1,563 | 0 | 0 | 1985 | 0–1 | 0.0% | — | 1,432 | 0 | 0 |
| 25 | 1991 | 5–9 | 35.7% | #132 | 1,566 | 0 | 0 | — | — | — | — | — | — | — |
| 26 | 1992 | 7–10 | 41.2% | #104 | 1,603 | 0 | 0 | 1987 | 8–7 | 53.3% | — | 1,557 | 0 | 0 |
| 27 | 1993 | 4–9 | 30.8% | #122 | 1,588 | 0 | 0 | 1988 | 11–17 | 39.3% | — | 1,578 | 0 | 0 |
| 28 | 1994 | 5–11 | 31.2% | #154 | 1,532 | 0 | 0 | 1989 | 4–11 | 26.7% | — | 1,525 | 0 | 0 |
| 29 | 1995 | 1–2 | 33.3% | #189 | 1,537 | 0 | 0 | — | — | — | — | — | — | — |
| 30 | 1996 | 1–4 | 20.0% | #148 | 1,519 | 0 | 0 | — | — | — | — | — | — | — |
| 31 | 1997 | 3–9 | 25.0% | #109 | 1,515 | 0 | 0 | — | — | — | — | — | — | — |
| 32 | 1998 | 0–1 | 0.0% | #548 | 1,512 | 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 | Rene Simpson | Iwona Kuczynska | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1981 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — |
| 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1982 | 2 | 4 | 6 | 33.3% | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 22 | 1988 | 5 | 3 | 8 | 62.5% | — | — | — | — | — | — | — | — | — | — | — | — | 1983 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% |
| 23 | 1989 | 8 | 12 | 20 | 40.0% | 2 | 3 | 5 | 40.0% | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 1990 | 1 | 4 | 5 | 20.0% | 1 | 4 | 5 | 20.0% | — | — | — | — | — | — | — | — | 1985 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 25 | 1991 | 2 | 5 | 7 | 28.6% | 3 | 4 | 7 | 42.9% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 1992 | 5 | 5 | 10 | 50.0% | 2 | 4 | 6 | 33.3% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1987 | 2 | 2 | 4 | 50.0% | 4 | 2 | 6 | 66.7% | 2 | 1 | 3 | 66.7% | 0 | 2 | 2 | 0.0% |
| 27 | 1993 | 3 | 6 | 9 | 33.3% | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | 1988 | 3 | 7 | 10 | 30.0% | 4 | 7 | 11 | 36.4% | 3 | 2 | 5 | 60.0% | 1 | 1 | 2 | 50.0% |
| 28 | 1994 | 5 | 10 | 15 | 33.3% | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 1989 | 3 | 7 | 10 | 30.0% | 1 | 2 | 3 | 33.3% | 0 | 2 | 2 | 0.0% | — | — | — | — |
| 29 | 1995 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 1996 | 1 | 2 | 3 | 33.3% | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 1997 | 2 | 3 | 5 | 40.0% | 1 | 3 | 4 | 25.0% | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 32 | 1998 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 32 | 51 | 83 | 38.6% | 10 | 23 | 33 | 30.3% | 0 | 4 | 4 | 0.0% | 2 | 5 | 7 | 28.6% | — | 10 | 22 | 32 | 31.2% | 10 | 13 | 23 | 43.5% | 5 | 5 | 10 | 50.0% | 2 | 5 | 7 | 28.6% |
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 | Rene Simpson | Iwona Kuczynska | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1981 | 1482 | 99.1 | — | — | — | — | — | — | — | 25.0% | -1.88 | — | — | — | +0.35 |
| 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1982 | 1433 | 97.1 | — | — | — | — | +85 | — | — | 35.3% | -0.65 | 1–2 (33%) | — | — | +1.27 |
| 22 | 1988 | 1559 | 115.5 | — | — | — | — | +45 | — | — | 58.8% | +0.35 | 1–0 | 0–1 | — | +1.22 | 1983 | 1434 | 102.9 | — | — | — | — | +90 | — | — | 25.0% | -1.25 | — | — | — | +0.34 |
| 23 | 1989 | 1619 | 123.0 | — | — | — | — | +19 | -74 | — | 39.0% | -1.10 | 2–1 (67%) | — | — | -1.57 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 1990 | 1563 | 111.0 | — | — | — | — | +31 | -47 | — | 30.4% | -1.61 | 0–3 (0%) | 0–3 (0%) | — | -0.30 | 1985 | 1432 | 109.1 | — | — | — | — | — | — | — | 0.0% | -2.00 | — | — | — | -0.22 |
| 25 | 1991 | 1566 | 120.5 | — | — | — | — | -8 | -14 | — | 39.4% | -0.70 | 2–3 (40%) | 2–0 | — | -0.35 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 1992 | 1604 | 127.1 | — | — | — | — | -4 | -31 | — | 43.2% | -0.49 | 1–2 (33%) | 2–1 (67%) | — | -0.95 | 1987 | 1558 | 125.4 | — | — | — | — | -50 | +78 | +42 | 53.1% | -0.03 | 1–1 | 2–2 (50%) | — | +0.58 |
| 27 | 1993 | 1588 | 120.6 | — | — | — | — | +17 | -35 | — | 33.3% | -1.59 | 0–1 | 2–2 (50%) | — | -0.20 | 1988 | 1578 | 113.9 | — | — | — | — | -81 | +17 | +53 | 40.6% | -0.64 | 4–4 (50%) | 3–2 (60%) | 102.4 | +0.78 |
| 28 | 1994 | 1533 | 109.5 | — | — | — | — | +1 | — | — | 42.1% | -0.45 | 2–6 (25%) | 0–3 (0%) | — | -0.05 | 1989 | 1526 | 107.1 | — | — | — | — | -51 | +64 | — | 32.3% | -1.13 | 1–2 (33%) | 2–2 (50%) | 98.3 | +0.38 |
| 29 | 1995 | 1537 | 104.1 | — | — | — | — | — | — | — | 37.5% | -0.50 | 1–1 | 1–1 | — | -0.26 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 1996 | 1520 | 111.2 | — | — | — | — | +20 | — | — | 33.3% | -1.25 | 0–2 | 1–0 | — | +0.07 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 1997 | 1516 | 117.1 | — | — | — | — | +12 | +7 | — | 34.5% | -1.10 | 1–4 (20%) | 0–1 | — | -0.55 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 32 | 1998 | 1513 | 105.5 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | -0.21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1663 | 126.9 | — | — | — | — | +13 | -32 | — | 38.9% | -0.90 | 10–23 (30%) | 8–12 (40%) | 91.9 | -2.48 | — | 1590 | 115.3 | — | — | — | — | -21 | +42 | +49 | 38.9% | -0.72 | 7–9 (44%) | 7–6 (54%) | 100.4 | +4.64 |
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 |
|---|---|---|---|---|---|
| Steffi Graf | 0 | 4 | 4 | May 27, 1992 | H2H |
| Nathalie Tauziat | 0 | 3 | 3 | May 28, 1997 | H2H |
| Julie Halard-Decugis | 0 | 3 | 3 | Mar 2, 1994 | H2H |
| Jana Novotna | 0 | 3 | 3 | Jan 17, 1992 | H2H |
| Sabine Appelmans | 0 | 2 | 2 | Sep 25, 1997 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Katerina Maleeva | 0 | 2 | 2 | Oct 19, 1989 | H2H |
| Silke Meier | 1 | 1 | 2 | May 31, 1989 | H2H |
| Liz Smylie | 1 | 1 | 2 | Apr 20, 1989 | H2H |
| Natasha Zvereva | 0 | 2 | 2 | Nov 4, 1988 | H2H |
| Kathy Horvath | 1 | 1 | 2 | May 4, 1988 | H2H |