Arata Onozawa defeated Warit Sornbutnark 7-6 6-1 in the Thailand F5 round of 32 on hard. The upset overturned the form book — Warit Sornbutnark came in leading the head-to-head 1–0. Arata Onozawa claimed a first win over Warit Sornbutnark in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-04-27 | Thailand F2 | R16 | hard | Warit Sornbutnark | 6-3 6-2 |
Averages over each player's completed matches in the selected window (46 vs 5). 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