Aleksa Mardjonovic defeated Obrad Markovski 6-4 6-4 in the M25 Antalya 1 q16 on clay. The result followed the form book — Aleksa Mardjonovic came in leading the head-to-head 1–0. Aleksa Mardjonovic extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-08-30 | M15 Ulcinj 1 | Q32 | clay | Aleksa Mardjonovic | 6-7(4) 7-5 11-9 |