Martin Vassallo Arguello defeated Juan Pablo Guzman 2-6 6-3 7-5 in the Palermo round of 32 on clay. Martin Vassallo Arguello extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-07-31 | Argentina 2 Masters 4 | F | clay | Juan Pablo Guzman | 6-4 6-1 |
| 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 (106 vs 12). 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