Seong Chan Hong defeated Ryan Peniston 4-6 6-3 6-3 in the M15 Hua Hin 1 semi-final on hard. The upset overturned the form book — Ryan Peniston came in leading the head-to-head 1–0, but Seong Chan Hong had been the form player, winning 5 of their last 10 on hard. Seong Chan Hong claimed a first win over Ryan Peniston in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-09-01 | M15 Hua Hin 2 | SF | hard | Ryan Peniston | 6-2 3-6 6-3 |
Averages over each player's completed matches in the selected window (131 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