Head to head
1
Hard
0
1
Clay
0
0
Carpet
2
Peter McNamara's wins on the left · Bill Scanlon's on the right · bar lengths share one scale
All meetings (4)
| 1983 | Philadelphia | Carpet | QF | Bill Scanlon | 6-4 4-6 7-6 |
| 1981 | San Francisco | Carpet | R16 | Bill Scanlon | 3-6 6-3 6-1 |
| 1980 | US Open | Hard | R64 | Peter McNamara | 3-6 6-0 7-5 6-2 |
| 1980 | Forest Hills WCT | Clay | R32 | Peter McNamara | 5-7 7-6 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.