Head to head
3
Hard
0
1
Grass
0
1
Carpet
1
Roscoe Tanner's wins on the left · John Sadri's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 1982 | Carlsbad WCT | Hard | SF | Roscoe Tanner | 4-6 7-6 6-4 |
| 1980 | Cincinnati | Hard | R16 | Roscoe Tanner | 6-4 6-0 |
| 1980 | Queen's Club | Grass | R16 | Roscoe Tanner | 6-4 2-6 6-3 |
| 1979 | Tokyo-2 | Carpet | R32 | John Sadri | 6-3 7-6 |
| 1979 | Los Angeles | Carpet | R64 | Roscoe Tanner | 6-3 7-6 |
| 1979 | Cincinnati | Hard | R32 | Roscoe Tanner | 6-4 7-6 |
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.