Head to head
2
Hard
1
1
Clay
0
3
Grass
0
Robert Lutz'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 (7)
| 1978 | Columbus | Clay | R32 | Robert Lutz | 6-4 6-3 |
| 1977 | Maui | Hard | R32 | Colin Dibley | 6-4 6-4 |
| 1977 | Nottingham | Grass | R16 | Robert Lutz | 6-2 6-1 |
| 1975 | Las Vegas | Hard | R32 | Robert Lutz | 6-1 6-0 |
| 1973 | Miami WCT | Hard | R32 | Robert Lutz | 3-6 6-4 6-2 |
| 1972 | US Open | Grass | R128 | Robert Lutz | 6-4 6-2 6-2 |
| 1970 | Manchester | Grass | R16 | Robert Lutz | 9-7 8-10 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.