Head to head
1
Hard
1
1
Carpet
1
Bill Scanlon's wins on the left · Gene Mayer's on the right · bar lengths share one scale
All meetings (4)
| 1980 | Los Angeles | Hard | SF | Gene Mayer | 6-3 6-7 7-6 |
| 1980 | Philadelphia WCT | Carpet | QF | Gene Mayer | 6-2 5-7 7-6 |
| 1978 | Maui | Hard | R16 | Bill Scanlon | 7-6 5-7 6-3 |
| 1977 | Birmingham WCT | Carpet | R16 | Bill Scanlon | 6-4 6-7(6) 6-2 |
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.