Ljubomir Celebic defeated Mike Urbanija 6-0 6-3 in the M15 Heraklion 2 q16 on hard. The result followed the form book — Ljubomir Celebic came in leading the head-to-head 3–0. Ljubomir Celebic extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-05-08 | M25 Prijedor 1 | R32 | clay | Ljubomir Celebic | 6-1 6-4 |
| 2018-03-19 | Croatia F3 | R16 | clay | Ljubomir Celebic | 0-6 6-3 6-2 |
| 2016-05-16 | Croatia F7 | R32 | clay | Ljubomir Celebic | 6-3 6-2 |