Mislav Hizak defeated Kresimir Ritz 6-2 4-6 6-4 in the Croatia F4 round of 16 on clay. The upset overturned the form book — Kresimir Ritz came in leading the head-to-head 1–0, but Mislav Hizak had been the form player, winning 3 of their last 7 on clay. Mislav Hizak claimed a first win over Kresimir Ritz in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-05-03 | Bosnia & Herzegovina F3 | R32 | clay | Kresimir Ritz | 6-2 6-7(8) 6-4 |