Head to head
0
Hard
3
0
Clay
1
0
Grass
1
1
Carpet
0
John Alexander's wins on the left · Gene Mayer's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 1983 | Milan | Carpet | R32 | John Alexander | 7-6 6-0 |
| 1982 | Sydney-1 | Hard | QF | Gene Mayer | 6-3 6-4 |
| 1982 | Davis Cup WG SF: AUS vs USA | Hard | RR | Gene Mayer | 6-4 3-6 6-1 6-2 |
| 1980 | Nations Cup | Clay | RR | Gene Mayer | 6-4 6-2 |
| 1980 | Los Angeles | Hard | R16 | Gene Mayer | 7-6 6-3 |
| 1979 | Wimbledon | Grass | R32 | Gene Mayer | 6-4 6-4 6-4 |
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.