Yu Jin Ahn defeated Sihyeong Cho 6-4 7-5 in the W15 Yeongwol 2 round of 32 on hard. The upset overturned the form book — Sihyeong Cho came in leading the head-to-head 1–0. Yu Jin Ahn claimed a first win over Sihyeong Cho in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-04-14 | W15 Wuning 2 | Q32 | hard | Sihyeong Cho | 3-6 6-4 10-3 |
Averages over each player's completed matches in the selected window (114 vs 35). 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