Head to head
0
Hard
3
1
Clay
2
1
Grass
1
1
Carpet
1
Colin Dibley's wins on the left · Roscoe Tanner's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (10)
| 1980 | Los Angeles | Hard | R32 | Roscoe Tanner | 6-3 7-6 |
| 1978 | Roland Garros | Clay | R32 | Roscoe Tanner | 7-5 7-6 6-4 |
| 1978 | Palm Springs | Hard | R16 | Roscoe Tanner | 7-6 7-6 |
| 1977 | Sydney-2 | Grass | QF | Roscoe Tanner | 7-6 6-2 |
| 1977 | Memphis | Carpet | R32 | Colin Dibley | 3-6 7-6 6-2 |
| 1975 | Sao Paulo WCT | Carpet | R32 | Roscoe Tanner | 6-4 7-6(2) |
| 1974 | Maui | Hard | QF | Roscoe Tanner | 7-5 6-3 |
| 1974 | Houston WCT | Clay | R16 | Colin Dibley | 6-4 7-6(4) |
| 1973 | Cincinnati | Clay | R16 | Roscoe Tanner | 6-1 7-5 |
| 1972 | Wimbledon | Grass | R32 | Colin Dibley | 9-8 6-4 9-8 |
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.