Mathieu Guenat defeated Dustin Brown 6-3 3-6 6-2 in the Switzerland F1 round of 32 on carpet. The upset overturned the form book — Dustin Brown came in leading the head-to-head 1–0. Mathieu Guenat claimed a first win over Dustin Brown in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-09-08 | France F14 | R16 | hard | Dustin Brown | 6-7(12) 6-4 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.