Juan Pablo Guzman defeated Martin Vassallo Arguello 6-4 6-1 in the Argentina 2 Masters 4 final on clay. The upset overturned the form book — Martin Vassallo Arguello came in leading the head-to-head 2–0, but Juan Pablo Guzman had been the form player, winning 3 of their last 4 on clay. Juan Pablo Guzman claimed a first win over Martin Vassallo Arguello in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-09-25 | Palermo | R32 | clay | Martin Vassallo Arguello | 2-6 6-3 7-5 |
| 1999-05-29 | Argentina 1 Masters 3 | R32 | clay | Martin Vassallo Arguello | 6-4 7-6 |
Averages over each player's completed matches in the selected window (21 vs 123). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About