Head to head
0
Hard
3
1
Clay
1
0
Grass
1
0
Carpet
1
Colin Dibley's wins on the left · Raul Ramirez's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (7)
| 1978 | Toronto | Clay | R16 | Raul Ramirez | 6-2 6-3 |
| 1978 | Wimbledon | Grass | R128 | Raul Ramirez | 9-7 9-8 6-3 |
| 1977 | Los Angeles-2 | Hard | R16 | Raul Ramirez | 6-4 6-2 |
| 1977 | Toronto-2 | Clay | R16 | Colin Dibley | 6-1 4-6 6-3 |
| 1977 | Las Vegas | Hard | SF | Raul Ramirez | 6-4 7-6 |
| 1975 | St. Louis WCT | Carpet | R32 | Raul Ramirez | 6-1 6-3 |
| 1975 | Orlando WCT | Hard | R16 | Raul Ramirez | 6-3 6-1 |
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.