Patty Schnyder defeated Anne Gaelle Sidot 3-6 6-3 6-4 in the Hamburg round of 16 on clay. The upset overturned the form book — Anne Gaelle Sidot came in leading the head-to-head 2–1, defending last year's semi-final. Patty Schnyder narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-02-06 | Paris | R32 | carpet | Anne Gaelle Sidot | 5-7 7-5 6-2 |
| 1998-02-18 | Hanover | R32 | carpet | Patty Schnyder | 6-0 6-2 |
| 1997-10-20 | Luxembourg | R32 | hard | Anne Gaelle Sidot | 4-6 6-2 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.