Pablo Galdon defeated Guillermo Hormazabal 6-3 6-1 in the Chile F4 qualifying round on clay. The upset overturned the form book — Guillermo Hormazabal came in leading the head-to-head 1–0. Pablo Galdon claimed a first win over Guillermo Hormazabal in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-10-31 | Chile F5 | F | clay | Guillermo Hormazabal | 7-6(4) 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.