Charles Antoine Brezac defeated Vasek Pospisil 6-4 7-6 in the Canada F3 semi-final on hard. The upset overturned the form book — Vasek Pospisil came in leading the head-to-head 1–0, but Charles Antoine Brezac had been the form player, winning 4 of their last 8 on hard. Charles Antoine Brezac claimed a first win over Vasek Pospisil in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-08-26 | US Open | Q64 | hard | Vasek Pospisil | 6-1 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.