Head to head
1
Hard
3
Fernando Gonzalez's wins on the left · Stefan Koubek's on the right · bar lengths share one scale
All meetings (4)
| 2004 | Madrid Masters | Hard | R32 | Stefan Koubek | 6-1 3-6 7-6(5) |
| 2003 | US Open | Hard | R64 | Fernando Gonzalez | 7-6(1) 6-1 6-2 |
| 2002 | Canada Masters | Hard | R64 | Stefan Koubek | 4-6 7-6(3) 6-3 |
| 2002 | Australian Open | Hard | R16 | Stefan Koubek | 7-5 6-1 6-7(3) 6-2 |
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.