Suchanun Viratprasert defeated Erika Sema 6-0 6-3 in the Tsukuba 25K semi-final on hard. The upset overturned the form book — Erika Sema came in leading the head-to-head 2–0. Suchanun Viratprasert claimed a first win over Erika Sema in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-03-01 | Sydney 25K | R32 | hard | Erika Sema | 7-5 6-3 |
| 2007-07-09 | Miyazaki 25K | R32 | carpet | Erika Sema | 6-3 6-3 |
Averages over each player's completed matches in the selected window (1 vs 199). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. Small sample — read as indicative. About