Alejandro Kon defeated Rodolfo Daruich 6-1 6-2 in the Uruguay F1 round of 32 on clay. The upset overturned the form book — Rodolfo Daruich came in leading the head-to-head 1–0, but Alejandro Kon had been the form player, winning 5 of their last 10 on clay. Alejandro Kon claimed a first win over Rodolfo Daruich in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-05-09 | Argentina F5 | R16 | clay | Rodolfo Daruich | 6-4 6-4 |