Tomislav Brkic defeated Nikola Cacic 6-1 7-6 in the Tunisia F8 round of 16 on clay. The upset overturned the form book — Nikola Cacic came in leading the head-to-head 3–1, but Tomislav Brkic had been the form player, winning 2 of their last 5 on clay. Tomislav Brkic narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-12-04 | Turkey F46 | F | clay | Tomislav Brkic | 7-6(2) 2-6 7-6(7) |
| 2013-10-21 | Croatia F12 | R32 | clay | Nikola Cacic | 6-4 6-3 |
| 2011-05-16 | Bosnia & Herzegovina F3 | R32 | clay | Nikola Cacic | 6-3 6-3 |
| 2009-05-04 | Bosnia & Herzegovina F1 | R32 | clay | Nikola Cacic | 6-2 6-2 |
Averages over each player's completed matches in the selected window (91 vs 44). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About