Suchanun Viratprasert defeated Sachie Umehara 6-3 5-7 6-4 in the Haibara 10K final on carpet. The upset overturned the form book — Sachie Umehara came in leading the head-to-head 1–0. Suchanun Viratprasert claimed a first win over Sachie Umehara in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-11-19 | Kofu 10K | QF | clay | Sachie Umehara | 7-6(4) 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.