Martina Hingis defeated Natalia Zvereva 6-3 6-2 in the San Diego round of 16 on hard. The result followed the form book — Martina Hingis came in leading the head-to-head 2–0, defending the title. Martina Hingis extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-03-29 | Hilton Head | QF | clay | Martina Hingis | 6-0 7-6 |
| 1997-10-06 | Filderstadt | R16 | hard | Martina Hingis | 4-6 6-1 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.