Guillermo Hormazabal defeated Gustavo Marcaccio 6-3 6-3 in the Vina del Mar q32 on clay. The upset overturned the form book — Gustavo Marcaccio came in leading the head-to-head 1–0. Guillermo Hormazabal claimed a first win over Gustavo Marcaccio in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-05-05 | Italy F12 | R32 | clay | Gustavo Marcaccio | 7-5 6-1 |