H2H data updated: 2026-07-19 14:15 UTC
Yukie Koizumi vs Karen Schimper H2H: 0-1
Karen Schimper holds a 1–0 lead over Yukie Koizumi in their WTA head-to-head. Across 1 main-draw meeting, Karen Schimper leads 1–0 on hard courts. Most recently, Karen Schimper won the 1988 Key Biscayne second round 7-6 6-3.
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H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Mar 16, 1988* | Key Biscayne | WTA 250 | R64 | Hard | Karen Schimper | 7-6 6-3 | Yukie Koizumi | Match data |
* Estimated match date where the exact historical date is unavailable.
Career Comparison
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 | Finals | 500 | 250 | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yukie Koizumi | — | — | — | 1,503 | 10 | 22 | 31.2% | 0 | 0 | 0 | 0 | 0 | 0 |
| Karen Schimper | #486 | #75 | 11 | 1,651 | 24 | 43 | 35.8% | 0 | 0 | 0 | 0 | 0 | 0 |
Career Progression by Age
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 | Karen Schimper | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 20 | — | — | — | — | — | — | — | 1987 | 6–12 | 33.3% | #102 | 1,528 | 0 | 0 |
| 21 | — | — | — | — | — | — | — | 1988 | 13–19 | 40.6% | #93 | 1,580 | 0 | 0 |
| 22 | 1980 | 0–1 | 0.0% | — | 1,487 | 0 | 0 | 1989 | 5–10 | 33.3% | #147 | 1,588 | 0 | 0 |
| 23 | — | — | — | — | — | — | — | 1990 | 0–2 | 0.0% | #470 | 1,564 | 0 | 0 |
| 27 | 1985 | 0–1 | 0.0% | — | 1,473 | 0 | 0 | — | — | — | — | — | — | — |
| 29 | 1987 | 3–4 | 42.9% | — | 1,481 | 0 | 0 | — | — | — | — | — | — | — |
| 30 | 1988 | 3–5 | 37.5% | — | 1,474 | 0 | 0 | — | — | — | — | — | — | — |
| 31 | 1989 | 2–6 | 25.0% | — | 1,448 | 0 | 0 | — | — | — | — | — | — | — |
| 32 | 1990 | 2–4 | 33.3% | — | 1,442 | 0 | 0 | — | — | — | — | — | — | — |
| 33 | 1991 | 0–1 | 0.0% | — | 1,436 | 0 | 0 | — | — | — | — | — | — | — |