Filippo Volandri defeated Agustin Calleri 6-4 6-4 in the Buenos Aires quarter-final on clay. The upset overturned the form book — Agustin Calleri came in defending last year's round-robin. Filippo Volandri extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-02-13 | Buenos Aires | SF | clay | Filippo Volandri | 6-3 6-4 |
| 2004-01-05 | Doha | R32 | hard | Agustin Calleri | 6-4 4-6 6-4 |
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 (200 vs 51). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About