Ricardo Siggia defeated Tiago Slonik 7-6 6-2 in the Brazil F22 round of 16 on clay. The upset overturned the form book — Tiago Slonik came in leading the head-to-head 1–0. Ricardo Siggia claimed a first win over Tiago Slonik in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-09-13 | Brazil F24 | QF | clay | Tiago Slonik | 5-7 7-6(5) 6-0 |