Head to head
2
Hard
2
1
Clay
2
0
Grass
1
Stefan Koubek's wins on the left · Juan Carlos Ferrero's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (8)
| 2007 | Roland Garros | Clay | R64 | Juan Carlos Ferrero | 6-4 7-5 6-3 |
| 2005 | Cincinnati Masters | Hard | R64 | Juan Carlos Ferrero | 0-6 6-3 6-2 |
| 2004 | US Open | Hard | R64 | Stefan Koubek | 7-6(2) 4-6 6-7(6) 6-2 6-3 |
| 2004 | Gstaad | Clay | R32 | Stefan Koubek | 7-6(4) 6-4 |
| 2004 | Wimbledon | Grass | R64 | Juan Carlos Ferrero | 4-6 7-5 5-7 7-6(6) 8-6 |
| 2002 | Hong Kong | Hard | R32 | Juan Carlos Ferrero | 6-2 6-4 |
| 2002 | Canada Masters | Hard | R32 | Stefan Koubek | 7-5 6-3 |
| 2001 | Roland Garros | Clay | R128 | Juan Carlos Ferrero | 6-2 6-2 6-3 |
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.