| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-09-25 | Seoul | QF | hard | Ai Sugiyama | 6-2 6-3 |
| 2004-04-24 | Fed Cup WG R1: ARG vs JPN | RR | clay | Paola Suarez | 6-7(4) 6-3 7-6 RET |
| 2004-04-05 | Amelia Island | R16 | clay | Paola Suarez | 7-5 7-6(8) |
| 2003-05-12 | Rome | R64 | clay | Ai Sugiyama | 6-3 6-2 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.