Head to head
1
Hard
1
2
Clay
0
Heinz Gunthardt's wins on the left · Pavel Slozil's on the right · bar lengths share one scale
All meetings (4)
| 1984 | Basel | Hard | R32 | Pavel Slozil | 6-7 6-3 6-3 |
| 1984 | North Conway | Clay | R64 | Heinz Gunthardt | 7-5 4-6 6-4 |
| 1983 | Roland Garros | Clay | R64 | Heinz Gunthardt | 7-6 6-3 6-1 |
| 1980 | Vienna-2 | Hard | R32 | Heinz Gunthardt | 6-3 3-6 6-0 |
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.