Amanda Coetzer defeated Irina Spirlea 6-4 2-6 6-4 in the Tokyo round of 16 on hard. The upset overturned the form book — Irina Spirlea came in leading the head-to-head 2–1. Amanda Coetzer narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-08-30 | US Open | R128 | hard | Irina Spirlea | 6-1 7-5 |
| 1998-03-30 | Hilton Head | F | clay | Amanda Coetzer | 6-3 6-4 |
| 1997-08-25 | US Open | R16 | hard | Irina Spirlea | 7-6 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.