Agustin Calleri defeated Juan Antonio Marin 6-4 6-2 in the Buenos Aires round of 16 on clay. The upset overturned the form book — Juan Antonio Marin came in leading the head-to-head 1–0, but Agustin Calleri had been the form player, winning 2 of their last 7 on clay. Agustin Calleri claimed a first win over Juan Antonio Marin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-04-25 | Estoril | R16 | clay | Juan Antonio Marin | 6-4 3-1 RET |
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 (152 vs 16). ATP, WTA & Challenger.