Jana Novotna defeated Ai Sugiyama 6-0 6-7 6-2 in the Zurich round of 16 on hard. The result followed the form book — Jana Novotna came in leading the head-to-head 2–1. Jana Novotna extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-08-16 | Canadian Open | R32 | hard | Ai Sugiyama | 5-7 6-2 6-1 |
| 1997-10-27 | Kremlin Cup | F | carpet | Jana Novotna | 6-3 6-4 |
| 1997-06-17 | Eastbourne | QF | grass | Jana Novotna | 6-2 6-7 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.