Julian Alonso defeated Mariano Puerta 6-4 6-2 in the Santiago quarter-final on clay. The upset overturned the form book — Mariano Puerta came in leading the head-to-head 2–0. Julian Alonso claimed a first win over Mariano Puerta in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-07-17 | Umag | R32 | clay | Mariano Puerta | 6-4 6-1 |
| 2000-04-24 | Barcelona | R64 | clay | Mariano Puerta | 7-5 7-6(3) |
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 (110 vs 199). ATP, WTA & Challenger.