| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-04-11 | Charleston | R16 | clay | Katarina Srebotnik | 6-1 4-6 6-1 |
| 2002-07-29 | San Diego | R16 | hard | Ai Sugiyama | 6-4 7-6(4) |
| 2001-10-01 | Japan Open | R16 | hard | Ai Sugiyama | 6-2 3-6 6-1 |
| 2000-01-31 | Tokyo | R32 | hard | Katarina Srebotnik | 6-3 6-3 |
| 1999-07-22 | Fed Cup WG2 RRA: JPN vs SLO | RR | hard | Ai Sugiyama | 6-1 6-2 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.