Guillermo Hormazabal defeated Diego Lopez 7-5 6-1 in the Chile F5 round of 32 on clay. The result followed the form book — Guillermo Hormazabal came in leading the head-to-head 2–0. Guillermo Hormazabal extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-11-14 | Chile F7 | R32 | clay | Guillermo Hormazabal | 7-5 6-3 |
| 2002-06-17 | Chile F1 | R32 | clay | Guillermo Hormazabal | 6-2 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.