Head to head
1
Clay
0
0
Grass
1
2
Carpet
0
Marty Riessen's wins on the left · Torben Ulrich's on the right · bar lengths share one scale
All meetings (4)
| 1973 | Washington-3 | Clay | R64 | Marty Riessen | 6-3 6-2 |
| 1973 | Chicago WCT | Carpet | R32 | Marty Riessen | 6-7 6-2 6-3 |
| 1973 | London WCT | Carpet | R32 | Marty Riessen | 6-4 6-2 |
| 1968 | US Open | Grass | R64 | Torben Ulrich | 3-6 6-2 6-3 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.