Head to head
2
Clay
1
Heinz Gunthardt's wins on the left · Tony Giammalva's on the right · bar lengths share one scale
All meetings (3)
| 1982 | Gstaad | Clay | R16 | Heinz Gunthardt | 6-0 6-1 |
| 1980 | Bastad | Clay | QF | Tony Giammalva | 7-5 6-1 |
| 1980 | Gstaad | Clay | R16 | Heinz Gunthardt | 6-3 6-1 |
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.