Ante Nakic Alfirevic defeated Robert Belak 6-3 6-3 in the Croatia F8 round of 16 on clay. The upset overturned the form book — Robert Belak came in leading the head-to-head 2–0. Ante Nakic Alfirevic claimed a first win over Robert Belak in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-09-03 | Croatia F9 | R16 | clay | Robert Belak | 6-2 6-4 |
| 2007-05-28 | Bosnia & Herzegovina F4 | R16 | clay | Robert Belak | 6-3 6-1 |