Rodrigo Guidolin defeated Ricardo Siggia 7-5 6-1 in the Brazil F8 round of 32 on clay. The result followed the form book — Rodrigo Guidolin came in leading the head-to-head 2–1. Rodrigo Guidolin extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-05-16 | Brazil F14 | R16 | clay | Rodrigo Guidolin | 6-2 6-1 |
| 2008-11-24 | Brazil F30 | R16 | clay | Rodrigo Guidolin | 6-4 6-3 |
| 2007-10-08 | Brazil F17 | R32 | clay | Ricardo Siggia | 6-2 6-3 |