Gustavo Guerses defeated Silas Araujo De Cerqueira 7-6 6-4 in the Brazil F12 round of 32 on clay. The upset overturned the form book — Silas Araujo De Cerqueira came in leading the head-to-head 1–0. Gustavo Guerses claimed a first win over Silas Araujo De Cerqueira in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-01-03 | Brazil F2 | R32 | clay | Silas Araujo De Cerqueira | 6-3 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.