Caio Zampieri defeated Carlos Avellan 6-3 6-4 in the Brazil F2 round of 16 on clay. The upset overturned the form book — Carlos Avellan came in leading the head-to-head 1–0. Caio Zampieri claimed a first win over Carlos Avellan in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-05-15 | Brazil F1 | R16 | clay | Carlos Avellan | 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.