Tiago Slonik defeated Ricardo Siggia 5-7 7-6 6-0 in the Brazil F24 qualifying round on clay. The upset overturned the form book — Ricardo Siggia came in leading the head-to-head 1–0, but Tiago Slonik had been the form player, winning 2 of their last 7 on clay. Tiago Slonik claimed a first win over Ricardo Siggia in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-08-30 | Brazil F22 | R16 | clay | Ricardo Siggia | 7-6(5) 6-2 |