Head to head
1
Hard
0
1
Grass
0
1
Carpet
1
Daniel Vacek's wins on the left · Bohdan Ulihrach's on the right · bar lengths share one scale
All meetings (4)
| 1999 | Long Island | Hard | QF | Daniel Vacek | 6-2 6-3 |
| 1999 | Wimbledon | Grass | R128 | Daniel Vacek | 6-1 6-2 6-4 |
| 1997 | Milan | Carpet | R16 | Daniel Vacek | 7-6(3) 6-3 |
| 1996 | Ostrava | Carpet | R32 | Bohdan Ulihrach | 6-2 3-6 7-5 |
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.