Mariano Puerta defeated Luis Horna 7-6 7-6 in the Canada Masters round of 64 on hard. The upset overturned the form book — Luis Horna came in leading the head-to-head 1–0, defending last year's round of 16. Mariano Puerta claimed a first win over Luis Horna in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-09-22 | Palermo | R16 | clay | Luis Horna | 6-4 6-2 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (60 vs 128). ATP, WTA & Challenger.