Juan Pablo Villar defeated Fabricio Neis 6-4 7-5 in the Brazil F23 round of 32 on clay. The upset overturned the form book — Fabricio Neis came in leading the head-to-head 2–1. Juan Pablo Villar narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-12-12 | Brazil F43 | R32 | clay | Fabricio Neis | 6-1 6-1 |
| 2010-09-13 | Brazil F24 | QF | clay | Juan Pablo Villar | 6-1 7-6(4) |
| 2010-07-26 | Brazil F17 | QF | clay | Fabricio Neis | 3-6 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.