Diego Cristin defeated Marcos Conocente 6-4 6-2 in the Argentina F1 round of 32 on clay. The upset overturned the form book — Marcos Conocente came in leading the head-to-head 1–0. Diego Cristin claimed a first win over Marcos Conocente in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-09-11 | Bolivia F1 | R32 | clay | Marcos Conocente | 1-6 6-2 6-2 |