Varatchaya Wongteanchai defeated Alison Bai 6-1 6-1 in the Bangkok 25K round of 32 on hard. The upset overturned the form book — Alison Bai came in leading the head-to-head 3–0, but Varatchaya Wongteanchai had been the form player, winning 4 of their last 8 on hard. Varatchaya Wongteanchai claimed a first win over Alison Bai in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-10-12 | Toowoomba $25K | R32 | hard | Alison Bai | 4-6 6-4 7-6(3) |
| 2014-10-27 | Margaret River 25K | R16 | hard | Alison Bai | 6-2 1-6 6-3 |
| 2009-03-23 | Wellington 10K | R32 | hard | Alison Bai | 1-6 7-5 6-3 |
Averages over each player's completed matches in the selected window (52 vs 63). 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