Ayumi Koshiishi defeated Himeno Sakatsume 6-3 7-6 in the W15 Monastir 30 final on hard. The upset overturned the form book — Himeno Sakatsume came in ranked #132. Ayumi Koshiishi extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-08-21 | W15 Monastir 31 | SF | hard | Ayumi Koshiishi | 6-1 6-1 |
Averages over each player's completed matches in the selected window (44 vs 117). 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