Markus Kanellos defeated Michal Mertinak 7-5 6-4 in the Slovenia F3 round of 16 on clay. The upset overturned the form book — Michal Mertinak came in leading the head-to-head 1–0. Markus Kanellos claimed a first win over Michal Mertinak in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-08-21 | Slovak Rep Masters 3 | R32 | clay | Michal Mertinak | 7-6(3) 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.