H2H data updated: 2026-09-14 00:00 UTC
Yukie Koizumi holds a 1–0 lead over Michelle Parun in their WTA head-to-head. Across 1 main-draw meeting, Yukie Koizumi leads 1–0 on hard courts. Most recently, Yukie Koizumi won the 1987 ASB Classic round of 64 6-0 6-1.
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 |
|---|---|---|---|---|---|---|---|---|
| Yukie Koizumi | 6-0 6-1 | Michelle Parun | Match data | Jan 27, 1987* | R64 | ASB Classic | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yukie Koizumi | — | — | — | 1,503 | 10 | 22 | 31.2% | 0 | 0 | 0 | 0 | 0 | 0 |
| Michelle Parun | — | — | — | 1,500 | 1 | 6 | 14.3% | 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 | Yukie Koizumi | Michelle Parun | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 19 | — | — | — | — | — | — | — | 1985 | 1–5 | 16.7% | — | 1,444 | 0 | 0 |
| 21 | — | — | — | — | — | — | — | 1987 | 0–1 | 0.0% | — | 1,430 | 0 | 0 |
| 22 | 1980 | 0–1 | 0.0% | — | 1,487 | 0 | 0 | — | — | — | — | — | — | — |
| 27 | 1985 | 0–1 | 0.0% | — | 1,473 | 0 | 0 | — | — | — | — | — | — | — |
| 29 | 1987 | 3–4 | 42.9% | — | 1,480 | 0 | 0 | — | — | — | — | — | — | — |
| 30 | 1988 | 3–5 | 37.5% | — | 1,473 | 0 | 0 | — | — | — | — | — | — | — |
| 31 | 1989 | 2–6 | 25.0% | — | 1,447 | 0 | 0 | — | — | — | — | — | — | — |
| 32 | 1990 | 2–4 | 33.3% | — | 1,440 | 0 | 0 | — | — | — | — | — | — | — |
| 33 | 1991 | 0–1 | 0.0% | — | 1,434 | 0 | 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 | Yukie Koizumi | Michelle Parun | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1985 | 1444 | 88.4 | — | — | — | — | — | — | — | 15.4% | -2.39 | 1–0 | — | — | +0.27 |
| 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1987 | 1430 | 90.6 | — | — | — | — | — | — | — | 0.0% | -5.50 | — | — | — | +0.15 |
| 22 | 1980 | 1487 | 97.4 | — | — | — | — | — | — | — | 33.3% | -0.67 | 0–1 | — | — | +0.06 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 1985 | 1473 | 98.8 | — | — | — | — | — | — | — | 33.3% | -0.67 | 0–1 | — | — | +0.19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 1987 | 1481 | 106.2 | — | — | — | — | +53 | — | — | 40.0% | -0.07 | 1–0 | 0–2 | — | +1.04 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 1988 | 1474 | 93.5 | — | — | — | — | +18 | — | — | 38.9% | -1.11 | 1–1 | 1–2 (33%) | — | +0.84 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 1989 | 1447 | 100.6 | — | — | — | — | +12 | — | — | 26.3% | -1.00 | 2–1 (67%) | — | — | +0.71 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 32 | 1990 | 1441 | 88.9 | — | — | — | — | +16 | — | — | 28.6% | -2.00 | 2–0 | 0–1 | — | +0.81 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 33 | 1991 | 1435 | 102.4 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | — | — | +0.10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1503 | 96.3 | — | — | — | — | +21 | — | — | 32.4% | -1.05 | 6–4 (60%) | 1–5 (17%) | 100.2 | +11.72 | — | 1500 | 89.3 | — | — | — | — | — | — | — | 13.3% | -2.80 | 1–0 | — | — | +6.00 |
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 |
|---|---|---|---|---|---|
| Maya Kidowaki | 0 | 2 | 2 | Apr 26, 1990 | H2H |
| Heather Ludloff | 1 | 1 | 2 | Apr 28, 1989 | H2H |
| Myriam Schropp | 1 | 1 | 2 | Jan 14, 1987 | H2H |
| Kathy Rinaldi Stunkel | 0 | 1 | 1 | Feb 2, 1991 | H2H |
| Belinda Borneo | 1 | 0 | 1 | Apr 25, 1990 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Yukie Koizumi | 0 | 1 | 1 | Jan 27, 1987 | H2H |
| Lea Antonoplis | 0 | 1 | 1 | Dec 13, 1985 | H2H |
| Dee Ann Hansel | 0 | 1 | 1 | Sep 27, 1985 | H2H |
| Susan Rimes | 1 | 0 | 1 | Sep 26, 1985 | H2H |
| Cammy Macgregor | 0 | 1 | 1 | Sep 12, 1985 | H2H |