Juan Albert Viloca Puig defeated Marcelo Rios 6-3 7-6 in the Gstaad round of 16 on clay. The upset overturned the form book — Marcelo Rios came in leading the head-to-head 2–0. Juan Albert Viloca Puig claimed a first win over Marcelo Rios in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-10-16 | Toulouse | QF | hard | Marcelo Rios | 6-4 6-4 |
| 1997-02-10 | Marseille | R32 | hard | Marcelo Rios | 7-6(4) 6-4 |
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 (88 vs 200). ATP, WTA & Challenger.