Nao Hibino defeated Yeon Woo Ku 4-6 6-2 6-2 in the W100 Incheon quarter-final on hard. Nao Hibino extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-11-21 | W100 Takasaki 1 | QF | hard | Yeon Woo Ku | 3-6 7-5 7-5 |
| 2025-09-26 | W100 Incheon 1 | QF | hard | Nao Hibino | 4-6 6-2 6-2 |
Averages over each player's completed matches in the selected window (109 vs 163). 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