Nathalie Tauziat defeated Amanda Coetzer 6-3 4-6 6-4 in the Philadelphia quarter-final on carpet. The result followed the form book — Nathalie Tauziat came in leading the head-to-head 3–1, defending last year's round of 32. Nathalie Tauziat extended the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-11-15 | WTA Tour Championships | R16 | carpet | Nathalie Tauziat | 6-3 7-6 |
| 1999-10-11 | Zurich | QF | hard | Nathalie Tauziat | 6-3 3-6 6-2 |
| 1997-11-17 | WTA Tour Championships | R16 | carpet | Nathalie Tauziat | 6-3 6-3 |
| 1997-08-18 | Atlanta | R16 | hard | Amanda Coetzer | 6-2 5-7 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.