Sunam Jeong defeated Seung Yeon Hong 6-4 5-7 6-2 in the Yeongwol $10K round of 16 on hard. The upset overturned the form book — Seung Yeon Hong came in leading the head-to-head 1–0, but Sunam Jeong had been the form player, winning 8 of their last 10 on hard. Sunam Jeong claimed a first win over Seung Yeon Hong in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-05-20 | W25 Goyang | Q32 | hard | Seung Yeon Hong | 2-6 6-3 10-2 |
Averages over each player's completed matches in the selected window (78 vs 17). 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