Head to head
3
Hard
0
1
Carpet
0
Daniel Vacek's wins on the left · David Prinosil's on the right · bar lengths share one scale
All meetings (4)
| 1998 | Tokyo | Hard | QF | Daniel Vacek | 6-4 6-1 |
| 1997 | Moscow | Carpet | R32 | Daniel Vacek | 6-0 6-2 |
| 1997 | New Haven | Hard | R64 | Daniel Vacek | 6-2 6-4 |
| 1996 | Atlanta Olympics | Hard | R64 | Daniel Vacek | 6-4 2-6 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.