Gabriel Dias defeated Juan Pablo Villar 7-6 2-6 6-4 in the Brazil F31 round of 16 on clay. The upset overturned the form book — Juan Pablo Villar came in leading the head-to-head 1–0. Gabriel Dias claimed a first win over Juan Pablo Villar in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-11-15 | Brazil F33 | R32 | clay | Juan Pablo Villar | 6-1 7-5 |