Irina Spirlea defeated Sandrine Testud 6-3 5-7 6-4 in the WTA Tour Championships round of 16 on carpet. The upset overturned the form book — Sandrine Testud came in leading the head-to-head 1–0. Irina Spirlea claimed a first win over Sandrine Testud in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-08-17 | Canadian Open | R16 | hard | Sandrine Testud | 7-6 4-6 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.