Head to head
0
Clay
1
1
Grass
0
Peter McNamara's wins on the left · Heinz Gunthardt's on the right · bar lengths share one scale
All meetings (2)
| 1981 | Wimbledon | Grass | R128 | Peter McNamara | 6-1 6-2 2-6 7-5 |
| 1980 | Gstaad | Clay | QF | Heinz Gunthardt | 6-4 7-6 |
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.