Ayumi Koshiishi defeated Olga Helmi 4-6 7-6 10-6 in the W15 Monastir 15 q16 on hard. Ayumi Koshiishi extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-07-29 | W15 Monastir 28 | R16 | hard | Ayumi Koshiishi | 6-1 7-5 |
| 2021-05-23 | W15 Monastir 18 | F | hard | Olga Helmi | 6-3 6-2 |
Averages over each player's completed matches in the selected window (200 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