Yi Tsen Cho defeated Ayumi Koshiishi 6-2 6-0 in the W25 Goyang qualifying round of 16 on hard. The upset overturned the form book — Ayumi Koshiishi came in leading the head-to-head 1–0. Yi Tsen Cho claimed a first win over Ayumi Koshiishi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-02-21 | W15 Kuala Lumpur 1 | R32 | hard | Ayumi Koshiishi | 0-6 7-6(5) 1-0 |
Averages over each player's completed matches in the selected window (56 vs 200). 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