Yannick Mertens defeated Marco Viola 7-5 7-6 in the Belgium F1 qualifying round on clay. The result followed the form book — Yannick Mertens came in leading the head-to-head 1–0. Yannick Mertens extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-08-18 | Belgium F2 | QF | clay | Yannick Mertens | 7-5 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.