Nadine Keller defeated Anouk Koevermans 7-6 6-3 in the W15 Monastir 5 round of 16 on hard. The result followed the form book — Nadine Keller came in leading the head-to-head 1–0. Nadine Keller extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-11-11 | W15 Monastir 43 | R16 | hard | Nadine Keller | 6-4 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.