Head to head
1
Hard
0
1
Grass
0
Marty Riessen's wins on the left · Thomaz Koch's on the right · bar lengths share one scale
All meetings (2)
| 1974 | Stockholm | Hard | R16 | Marty Riessen | 7-6 6-4 |
| 1973 | US Open | Grass | R128 | Marty Riessen | 5-7 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.