Michal Ciszek defeated Agustin Tarantino 7-6 6-1 in the Ecuador F2 round of 16 on hard. The upset overturned the form book — Agustin Tarantino came in leading the head-to-head 1–0. Michal Ciszek claimed a first win over Agustin Tarantino in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-09-13 | Ecuador F3 | QF | hard | Agustin Tarantino | 6-3 2-1 |