Tess Sugnaux defeated Nadine Keller 4-6 7-5 6-3 in the W15 Monastir 38 round of 16 on hard. The upset overturned the form book — Nadine Keller came in leading the head-to-head 1–0. Tess Sugnaux claimed a first win over Nadine Keller in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-02-03 | W15 Monastir 1 | QF | hard | Nadine Keller | 3-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.