Head to head
1
Hard
0
2
Grass
1
1
Carpet
0
Tony Roche's wins on the left · Colin Dibley's on the right · bar lengths share one scale
All meetings (5)
| 1979 | Australian Open | Grass | R16 | Colin Dibley | 6-4 6-7 3-6 6-3 6-4 |
| 1978 | Sydney-2 | Grass | R64 | Tony Roche | 7-6 6-2 |
| 1975 | Sydney-1 | Hard | R64 | Tony Roche | 6-3 6-2 |
| 1975 | Philadelphia WCT | Carpet | R64 | Tony Roche | 6-2 6-3 |
| 1974 | Australian Open | Grass | R32 | Tony Roche | 6-1 6-3 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.