Juan Martin Aranguren defeated Patricio Rudi 6-1 6-3 in the Chile F1A round of 16 on clay. The upset overturned the form book — Patricio Rudi came in leading the head-to-head 1–0. Juan Martin Aranguren claimed a first win over Patricio Rudi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-11-15 | Uruguay F1 | R16 | clay | Patricio Rudi | 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.