Juan Antonio Marin defeated Marcelo Rios 6-4 6-7 7-5 in the Santiago quarter-final on clay. The upset overturned the form book — Marcelo Rios came in leading the head-to-head 1–0, defending last year's final. Juan Antonio Marin claimed a first win over Marcelo Rios in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-02-24 | Acapulco | R16 | hard | Marcelo Rios | 6-3 6-1 |
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 (169 vs 200). ATP, WTA & Challenger.