Dejan Katic defeated Aleksandar Grubin 6-2 6-2 in the Bosnia & Herzegovina F3 qualifying round on clay. The upset overturned the form book — Aleksandar Grubin came in leading the head-to-head 1–0, but Dejan Katic had been the form player, winning 4 of their last 8 on clay. Dejan Katic claimed a first win over Aleksandar Grubin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-06-06 | Serbia & Montenegro F1 | R32 | clay | Aleksandar Grubin | 6-4 2-6 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.