Head to head
1
Hard
0
0
Clay
1
Ion Tiriac's wins on the left · Robert Lutz's on the right · bar lengths share one scale
All meetings (2)
| 1977 | Virginia Beach | Clay | R16 | Robert Lutz | 6-2 6-3 |
| 1969 | Denver | Hard | RR | Ion Tiriac | 6-4 |
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.