Nicolas Santos defeated Ricardo Siggia 3-6 6-1 6-1 in the Brazil F16 round of 32 on clay. The result followed the form book — Nicolas Santos came in leading the head-to-head 2–0. Nicolas Santos extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-07-30 | Brazil F19 | R16 | hard | Nicolas Santos | 7-5 3-6 7-5 |
| 2010-10-25 | Brazil F30 | R32 | clay | Nicolas Santos | 6-4 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.