Tuncay Duran defeated Filip Peliwo 6-2 6-3 in the M15 Monastir 21 round of 16 on hard. The upset overturned the form book — Filip Peliwo came in leading the head-to-head 2–0, but Tuncay Duran had been the form player, winning 8 of their last 10 on hard. Tuncay Duran claimed a first win over Filip Peliwo in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-06-23 | M25 Netanya 1 | QF | hard | Filip Peliwo | 6-4 6-2 |
| 2023-05-23 | M25 Bodrum 1 | R32 | clay | Filip Peliwo | 5-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.