Head to head
1
Grass
1
0
Carpet
1
Robert Lutz's wins on the left · Ray Ruffels's on the right · bar lengths share one scale
All meetings (3)
| 1974 | US Open | Grass | R128 | Robert Lutz | 6-7 6-4 6-4 6-1 |
| 1971 | Chicago WCT | Carpet | R32 | Ray Ruffels | 4-6 6-4 6-1 |
| 1969 | Melbourne | Grass | QF | Ray Ruffels | 6-3 6-1 6-2 |
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.