Manuel Sanchez defeated Marvin Barker 7-6 6-2 in the Venezuela F5 round of 16 on hard. The upset overturned the form book — Marvin Barker came in leading the head-to-head 1–0, but Manuel Sanchez had been the form player, winning 2 of their last 5 on hard. Manuel Sanchez claimed a first win over Marvin Barker in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-05-30 | Mexico F5 | R32 | hard | Marvin Barker | 7-5 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.