Rodrigo Guidolin defeated Alexandre Bonatto 7-6 6-1 in the Brazil F31 qualifying round on clay. The upset overturned the form book — Alexandre Bonatto came in leading the head-to-head 4–2. Rodrigo Guidolin narrowed the head-to-head to 4–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-07-19 | Brazil F16 | R32 | clay | Rodrigo Guidolin | 4-6 6-3 6-4 |
| 2009-10-26 | Brazil F25 | QF | clay | Alexandre Bonatto | 6-3 6-1 |
| 2009-06-15 | Brazil F7 | R16 | clay | Rodrigo Guidolin | 6-2 1-6 7-6(3) |
| 2008-05-19 | Brazil F5 | R16 | clay | Alexandre Bonatto | 6-1 6-0 |
| 2007-11-12 | Brazil F22 | QF | clay | Alexandre Bonatto | 6-7(5) 7-5 7-6(6) |
| 2004-09-20 | Brazil F7 | R16 | hard | Alexandre Bonatto | 6-3 6-1 |