Nikola Ciric defeated Robert Belak 6-3 6-4 in the Serbia F4 round of 32 on clay. The result followed the form book — Nikola Ciric came in leading the head-to-head 2–1. Nikola Ciric extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-08-04 | Serbia F3 | QF | clay | Nikola Ciric | 6-2 6-1 |
| 2007-03-19 | Croatia F4 | R32 | clay | Robert Belak | 6-3 3-3 |
| 2006-07-31 | Serbia & Montenegro F3 | R32 | clay | Nikola Ciric | 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.