Head to head
1
Hard
1
2
Clay
0
1
Grass
0
1
Carpet
1
Roscoe Tanner's wins on the left · Bill Scanlon's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (7)
| 1983 | Wembley | Carpet | R32 | Bill Scanlon | 6-7 6-0 6-1 |
| 1983 | Columbus | Hard | QF | Bill Scanlon | 6-4 6-4 |
| 1982 | Tampa | Hard | R32 | Roscoe Tanner | 7-6 7-6 |
| 1980 | Richmond WCT | Carpet | QF | Roscoe Tanner | 6-7 6-4 6-4 |
| 1978 | Rome | Clay | R64 | Roscoe Tanner | 6-2 6-2 |
| 1977 | Nottingham | Grass | R16 | Roscoe Tanner | 6-2 6-1 |
| 1976 | Tokyo | Clay | R32 | Roscoe Tanner | 6-3 6-0 |
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.