Head to head
1
Hard
1
1
Clay
0
Lleyton Hewitt's wins on the left · Agustin Calleri's on the right · bar lengths share one scale
All meetings (3)
| 2007 | US Open | Hard | R64 | Agustin Calleri | 4-6 6-4 6-4 6-2 |
| 2007 | Hamburg Masters | Clay | R64 | Lleyton Hewitt | 6-3 6-4 |
| 2005 | Adelaide | Hard | R16 | Lleyton Hewitt | 6-1 6-4 |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.