Sachie Umehara defeated Benjamas Sangaram 7-5 7-5 in the Taiwan 10K semi-final on clay. The upset overturned the form book — Benjamas Sangaram came in leading the head-to-head 1–0. Sachie Umehara claimed a first win over Benjamas Sangaram in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-12-06 | Manila 25K | R16 | hard | Benjamas Sangaram | 6-2 6-4 |