Head to head
1
Hard
0
1
Clay
2
Stefan Koubek's wins on the left · Agustin Calleri's on the right · bar lengths share one scale
All meetings (4)
| 2008 | Australian Open | Hard | R64 | Stefan Koubek | 6-3 7-6(6) 7-6(5) |
| 2007 | Sopot | Clay | R32 | Stefan Koubek | 0-6 7-6(3) 7-5 |
| 2003 | Rome Masters | Clay | R64 | Agustin Calleri | 6-2 6-2 |
| 2002 | Rome Masters | Clay | R64 | Agustin Calleri | 6-2 7-6(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.