Matias Marin defeated Felipe Lemos 2-6 6-3 6-1 in the Mexico F18 round of 32 on hard. The result followed the form book — Matias Marin came in leading the head-to-head 1–0. Matias Marin extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-09-29 | Mexico F15 | R16 | hard | Matias Marin | 7-5 6-3 |