Head to head
0
Hard
2
2
Clay
0
0
Grass
1
3
Carpet
2
Cliff Richey's wins on the left · Robert Lutz's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (10)
| 1978 | Stowe | Hard | QF | Robert Lutz | 4-6 7-6 6-1 |
| 1977 | Ocean City | Carpet | QF | Robert Lutz | 6-7 7-5 7-6 |
| 1975 | Los Angeles | Carpet | R16 | Robert Lutz | 6-2 6-3 |
| 1975 | Atlanta WCT | Carpet | R16 | Cliff Richey | 6-2 6-3 |
| 1975 | Philadelphia WCT | Carpet | R16 | Cliff Richey | 1-6 6-2 6-3 |
| 1974 | St. Louis WCT | Carpet | R32 | Cliff Richey | 7-6(4) 6-1 |
| 1973 | Miami WCT | Hard | QF | Robert Lutz | 7-5 7-6(1) |
| 1972 | Washington WCT | Clay | R32 | Cliff Richey | 4-6 6-0 6-4 |
| 1972 | Bretton Woods WCT | Clay | R16 | Cliff Richey | 6-2 1-0 RET |
| 1968 | Boston-2 | Grass | R16 | Robert Lutz | 6-3 6-2 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.