Juan Pablo Villar defeated Rodrigo Guidolin 2-6 6-1 6-4 in the Brazil F29 qualifying round on clay. The upset overturned the form book — Rodrigo Guidolin came in leading the head-to-head 1–0. Juan Pablo Villar claimed a first win over Rodrigo Guidolin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-10-25 | Brazil F30 | QF | clay | Rodrigo Guidolin | 6-3 7-5 |