Head to head
0
Hard
1
1
Carpet
1
Gene Mayer's wins on the left · Heinz Gunthardt's on the right · bar lengths share one scale
All meetings (3)
| 1983 | US Open | Hard | R32 | Heinz Gunthardt | 6-1 6-0 6-0 |
| 1980 | Rotterdam WCT | Carpet | F | Heinz Gunthardt | 6-2 6-4 |
| 1980 | Philadelphia WCT | Carpet | R16 | Gene Mayer | 6-3 6-3 |
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.