Ricardo Siggia defeated Carlos Eduardo Severino 7-5 6-1 in the Brazil F26 round of 16 on clay. The upset overturned the form book — Carlos Eduardo Severino came in leading the head-to-head 2–0. Ricardo Siggia claimed a first win over Carlos Eduardo Severino in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-10-01 | Brazil F28 | R16 | clay | Carlos Eduardo Severino | 6-3 7-5 |
| 2009-06-08 | Brazil F6 | R32 | clay | Carlos Eduardo Severino | 6-7(5) 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.