Head to head
1
Hard
0
1
Clay
1
1
Grass
1
1
Carpet
0
Victor Amaya's wins on the left · Colin Dibley's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 1980 | Stockholm | Carpet | R32 | Victor Amaya | 6-4 6-4 |
| 1978 | Queen's Club | Grass | R16 | Colin Dibley | 6-1 7-5 |
| 1978 | Little Rock | Hard | R16 | Victor Amaya | 7-6 6-3 |
| 1977 | Adelaide-1 | Grass | QF | Victor Amaya | 6-3 6-7 6-3 |
| 1976 | Louisville | Clay | R32 | Colin Dibley | 4-6 6-1 6-1 |
| 1976 | Washington-2 | Clay | R32 | Victor Amaya | 6-3 6-4 |
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.