Ivan Cerovic defeated Kristijan Mesaros 6-3 7-5 in the Slovenia F1 round of 16 on clay. The upset overturned the form book — Kristijan Mesaros came in leading the head-to-head 2–0. Ivan Cerovic claimed a first win over Kristijan Mesaros in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-08-22 | Croatia F7 | R32 | clay | Kristijan Mesaros | 6-1 6-2 |
| 2006-09-04 | Croatia F6 | R32 | clay | Kristijan Mesaros | 1-6 6-3 7-6(4) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.