Adam Kellner defeated Dimitar Grabuloski 6-3 6-2 in the Serbia F4 round of 32 on clay. The upset overturned the form book — Dimitar Grabuloski came in leading the head-to-head 1–0. Adam Kellner claimed a first win over Dimitar Grabuloski in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-07-09 | Davis Cup G2 PO: HUN vs MKD | RR | clay | Dimitar Grabuloski | 1-6 5-7 6-4 6-4 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.