Head to head
1
Hard
0
1
Clay
0
1
Carpet
0
Jakob Hlasek's wins on the left · Marko Ostoja's on the right · bar lengths share one scale
All meetings (3)
| 1989 | Gstaad | Clay | R32 | Jakob Hlasek | 6-4 6-2 |
| 1989 | Milan | Carpet | R32 | Jakob Hlasek | 7-6 6-1 |
| 1988 | Toulouse | Hard | R16 | Jakob Hlasek | 6-0 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.