Johny De Leon defeated Jhonnatan Medina Alvarez 7-6 6-0 in the Colombia F1B round of 32 on clay. The upset overturned the form book — Jhonnatan Medina Alvarez came in leading the head-to-head 1–0, but Johny De Leon had been the form player, winning 1 of their last 4 on clay. Johny De Leon claimed a first win over Jhonnatan Medina Alvarez in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-09-05 | Ecuador F3 | R32 | clay | Jhonnatan Medina Alvarez | 6-0 6-4 |