Ljubomir Celebic defeated Tom Kocevar Desman 7-5 6-4 in the M15 Novi Sad 1 semi-final on clay. The upset overturned the form book — Tom Kocevar Desman came in leading the head-to-head 1–0. Ljubomir Celebic claimed a first win over Tom Kocevar Desman in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-05-21 | Bosnia & Herzegovina F2 | R16 | clay | Tom Kocevar Desman | 7-5 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.