| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-07-30 | San Diego | R16 | hard | Patty Schnyder | 6-1 6-7(4) 6-3 |
| 1999-03-05 | Indian Wells | R16 | hard | Martina Hingis | 6-1 6-3 |
| 1998-11-16 | WTA Tour Championships | R16 | carpet | Martina Hingis | 4-6 6-0 6-3 |
| 1998-09-28 | Grand Slam Cup | SF | hard | Patty Schnyder | 5-7 7-5 5-5 RET |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.