Moez Chargui defeated Jan Mertl 6-3 6-4 in the Tunisia F8 semi-final on hard. The upset overturned the form book — Jan Mertl came in leading the head-to-head 1–0. Moez Chargui claimed a first win over Jan Mertl in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-10-02 | Egypt F28 | QF | hard | Jan Mertl | 6-2 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.