Yunseok Jang defeated Sam Ryan Ziegann 6-0 6-3 in the M15 Anseong 1 round of 16 on hard. Yunseok Jang extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-01-16 | M15 Jakarta 1 | Q32 | hard | Yunseok Jang | 6-1 7-5 |
Averages over each player's completed matches in the selected window (1 vs 2). 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. Small sample — read as indicative. About