Hiroyasu Ehara defeated Wishaya Trongcharoenchaikul 1-6 6-2 7-5 in the China F13 qualifying round on hard. The upset overturned the form book — Wishaya Trongcharoenchaikul came in leading the head-to-head 2–1. Hiroyasu Ehara narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-05-22 | Singapore F1 | SF | hard | Hiroyasu Ehara | 6-2 2-1 |
| 2016-09-19 | Vietnam F5 | R32 | hard | Wishaya Trongcharoenchaikul | 7-6(5) 6-3 |
| 2012-09-10 | Vietnam F4 | QF | hard | Wishaya Trongcharoenchaikul | 6-3 6-2 |
Averages over each player's completed matches in the selected window (22 vs 200). 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