Rodrigo Guidolin defeated Joao Souza 6-2 4-6 7-6 in the Brazil F13 round of 16 on clay. The upset overturned the form book — Joao Souza came in leading the head-to-head 1–0, but Rodrigo Guidolin had been the form player, winning 4 of their last 7 on clay. Rodrigo Guidolin claimed a first win over Joao Souza in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-10-23 | Brazil F16 | R16 | clay | Joao Souza | 6-3 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.