Oliver Ceranic defeated Antun Pehar 6-1 6-2 in the Bosnia & Herzegovina F4 qualifying round of 16 on clay. The upset overturned the form book — Antun Pehar came in leading the head-to-head 1–0. Oliver Ceranic claimed a first win over Antun Pehar in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-06-10 | Bosnia & Herzegovina F3 | Q16 | clay | Antun Pehar | 6-2 3-6 7-6(2) |