Guillermo Hormazabal defeated Emiliano Redondi 6-4 2-6 6-3 in the Chile F5 round of 32 on clay. The upset overturned the form book — Emiliano Redondi came in leading the head-to-head 1–0. Guillermo Hormazabal claimed a first win over Emiliano Redondi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-03-08 | Chile 1 4 | R32 | clay | Emiliano Redondi | 6-1 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.