Sachie Ishizu defeated Varatchaya Wongteanchai 6-4 6-1 in the Nonthaburi 10K semi-final on hard. The upset overturned the form book — Varatchaya Wongteanchai came in leading the head-to-head 1–0, but Sachie Ishizu had been the form player, winning 5 of their last 6 on hard. Sachie Ishizu claimed a first win over Varatchaya Wongteanchai in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-09-05 | Noto 25K | QF | carpet | Varatchaya Wongteanchai | 0-6 6-2 6-2 |
Averages over each player's completed matches in the selected window (12 vs 53). 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. About