Rodrigo Guidolin defeated Ricardo Siggia 6-4 6-3 in the Brazil F30 round of 16 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 |
| 2009-06-22 | Brazil F8 | R32 | clay | Rodrigo Guidolin | 7-5 6-1 |
| 2007-10-08 | Brazil F17 | R32 | clay | Ricardo Siggia | 6-2 6-3 |