Nikola Basic defeated Josip Simundza 6-1 6-3 in the M15 Store 1 round of 32 on clay. Nikola Basic extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-06-06 | M15 Sarajevo 1 | Q16 | clay | Nikola Basic | 2-6 6-3 10-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.