Head to head
2
Grass
0
3
Carpet
0
Robert Lutz's wins on the left · Onny Parun's on the right · bar lengths share one scale
All meetings (5)
| 1977 | Nottingham | Grass | R32 | Robert Lutz | 6-1 6-3 |
| 1977 | Memphis | Carpet | R64 | Robert Lutz | 7-6 6-3 |
| 1973 | Munich WCT | Carpet | R32 | Robert Lutz | 6-3 6-4 |
| 1973 | Philadelphia WCT | Carpet | R16 | Robert Lutz | 6-4 4-6 6-4 |
| 1971 | US Open | Grass | R32 | Robert Lutz | 6-4 6-7 6-3 3-6 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.