Mariano Puerta defeated Julian Alonso 7-5 7-6 in the Barcelona round of 64 on clay. Mariano Puerta extended 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 |
| 1997-11-03 | Santiago | QF | clay | Julian Alonso | 6-4 6-2 |
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 (161 vs 12). ATP, WTA & Challenger.