Yeongseok Jeong defeated Chanchai Sookton Eng 6-4 6-1 in the M15 Changwon 1 round of 32 on hard. The upset overturned the form book — Chanchai Sookton Eng came in leading the head-to-head 1–0. Yeongseok Jeong claimed a first win over Chanchai Sookton Eng in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-08-20 | M15 Hua Hin 1 | Q16 | hard | Chanchai Sookton Eng | 6-4 7-6(8) |
Averages over each player's completed matches in the selected window (88 vs 38). 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