Ayumi Koshiishi defeated Yuka Hosoki 5-7 6-2 6-0 in the W15 Hinode 1 quarter-final on hard. The result followed the form book — Ayumi Koshiishi came in ranked #771, leading the head-to-head 1–0. Ayumi Koshiishi extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-08-19 | W15 Monastir 31 | R16 | hard | Ayumi Koshiishi | 6-3 6-1 |
Averages over each player's completed matches in the selected window (200 vs 104). 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