Head to head
1
Clay
1
Stefan Koubek's wins on the left · Kristof Vliegen's on the right · bar lengths share one scale
All meetings (2)
| 2007 | Sopot | Clay | R16 | Stefan Koubek | 6-2 3-6 6-4 |
| 2004 | Barcelona | Clay | R64 | Kristof Vliegen | 6-4 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.