Wishaya Trongcharoenchaikul defeated Hiroyasu Ehara 7-6 6-3 in the Vietnam F5 round of 32 on hard. The upset overturned the form book — Hiroyasu Ehara came in leading the head-to-head 2–1, but Wishaya Trongcharoenchaikul had been the form player, winning 3 of their last 7 on hard. Wishaya Trongcharoenchaikul narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-07-17 | China F13 | QF | hard | Hiroyasu Ehara | 1-6 6-2 7-5 |
| 2017-05-22 | Singapore F1 | SF | hard | Hiroyasu Ehara | 6-2 2-1 |
| 2012-09-10 | Vietnam F4 | QF | hard | Wishaya Trongcharoenchaikul | 6-3 6-2 |
Averages over each player's completed matches in the selected window (200 vs 29). 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