Head to head
0
Hard
1
1
Clay
0
Marcos Ondruska's wins on the left · Joern Renzenbrink's on the right · bar lengths share one scale
All meetings (2)
| 1993 | Basel | Hard | R32 | Joern Renzenbrink | 3-6 6-3 7-5 |
| 1993 | Hamburg Masters | Clay | R32 | Marcos Ondruska | 7-5 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.