Guillermo Hormazabal defeated Juan Martin Aranguren 7-6 7-6 in the Chile 1 3 round of 32 on clay. The upset overturned the form book — Juan Martin Aranguren came in leading the head-to-head 1–0. Guillermo Hormazabal claimed a first win over Juan Martin Aranguren in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-08-29 | Argentina F9 | R32 | clay | Juan Martin Aranguren | 6-4 6-3 |
Averages over each player's completed matches in the selected window (2 vs 2). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About