| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-07-26 | San Diego | R32 | hard | Ai Sugiyama | 6-2 6-2 |
| 2002-09-16 | Tokyo | R32 | hard | Ai Sugiyama | 6-4 6-1 |
| 2002-02-17 | Memphis | R16 | hard | Ai Sugiyama | 6-2 7-6(3) |
| 2001-01-07 | Canberra | R32 | hard | Ai Sugiyama | 6-4 6-2 |
| 2000-09-30 | Tokyo | R16 | hard | Shinobu Asagoe | 6-3 7-5 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.