Igor Dudun defeated Matas Vasiliauskas 4-6 6-3 6-2 in the M25 Monastir 6 round of 32 on hard. The upset overturned the form book — Matas Vasiliauskas came in leading the head-to-head 1–0. Igor Dudun claimed a first win over Matas Vasiliauskas in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-09-17 | M15 Monastir 38 | Q64 | hard | Matas Vasiliauskas | 6-0 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.