Jane Chi defeated Amy Frazier 3-6 7-6 7-5 in the Oklahoma round of 32 on hard. The upset overturned the form book — Amy Frazier came in defending last year's round of 16. Jane Chi extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-10-05 | Albuquerque 50K | R16 | hard | Jane Chi | 6-3 6-4 |
| 1998-07-13 | Mahwah 50K | R16 | hard | Amy Frazier | 6-4 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.