Head to head
1
Hard
2
1
Clay
0
0
Carpet
4
Geoff Masters'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 (8)
| 1978 | Springfield | Carpet | R32 | Robert Lutz | 6-2 6-3 |
| 1977 | Los Angeles-1 | Carpet | R16 | Robert Lutz | 6-2 6-1 |
| 1977 | Palm Springs | Hard | R32 | Robert Lutz | 7-6 6-3 |
| 1976 | San Francisco | Carpet | R32 | Robert Lutz | 6-4 5-7 7-6 |
| 1976 | Las Vegas | Hard | R32 | Robert Lutz | 6-3 6-0 |
| 1975 | Tokyo-2 | Clay | R64 | Geoff Masters | 6-3 1-6 6-3 |
| 1974 | Orlando WCT | Hard | R32 | Geoff Masters | 6-4 7-6(6) |
| 1974 | New Orleans WCT | Carpet | R16 | Robert Lutz | 4-6 7-6 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.