Matias Marin defeated Felipe Lemos 7-5 6-3 in the Mexico F15 round of 16 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 |
|---|---|---|---|---|---|
| 2003-10-20 | Mexico F18 | R32 | hard | Matias Marin | 2-6 6-3 6-1 |