Head to head
1
Clay
2
0
Carpet
1
Hans Kary's wins on the left · Jose-Luis Clerc's on the right · bar lengths share one scale
All meetings (4)
| 1979 | Milan WCT | Carpet | R32 | Jose-Luis Clerc | 7-5 6-2 |
| 1978 | Barcelona | Clay | R64 | Hans Kary | 6-1 6-1 |
| 1978 | Toronto | Clay | R64 | Jose-Luis Clerc | 6-3 6-3 |
| 1978 | Gstaad | Clay | R16 | Jose-Luis Clerc | 6-1 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.