Aleksandar Grubin defeated Dejan Katic 6-4 2-6 6-1 in the Serbia & Montenegro F1 round of 32 on clay. The upset overturned the form book — Dejan Katic came in leading the head-to-head 1–0. Aleksandar Grubin claimed a first win over Dejan Katic in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-05-29 | Bosnia & Herzegovina F3 | QF | clay | Dejan Katic | 6-2 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.