Amanda Coetzer defeated Naoko Sawamatsu 6-1 6-2 in the Strasbourg round of 32 on clay. The upset overturned the form book — Naoko Sawamatsu came in leading the head-to-head 1–0. Amanda Coetzer claimed a first win over Naoko Sawamatsu in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-06-22 | Wimbledon | R64 | grass | Naoko Sawamatsu | 3-6 6-3 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.