Guillermo Hormazabal defeated Guillermo Duran 4-6 6-2 6-2 in the Chile F15 round of 16 on clay. The result followed the form book — Guillermo Hormazabal came in leading the head-to-head 1–0. Guillermo Hormazabal extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-11-29 | Chile F7 | SF | clay | Guillermo Hormazabal | 6-0 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.