Diego Cubas defeated Renan Delsin 1-6 6-4 6-3 in the Brazil F4 round of 32 on clay. The result followed the form book — Diego Cubas came in leading the head-to-head 1–0. Diego Cubas extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-05-15 | Brazil F1 | R32 | clay | Diego Cubas | 6-4 6-1 |