Head to head
0
Grass
1
1
Carpet
0
Dick Dell's wins on the left · Thomaz Koch's on the right · bar lengths share one scale
All meetings (3)
| 1972 | Salisbury | Carpet | R64 | Dick Dell | 7-5 6-4 |
| 1971 | Clemmons | Clay | R64 | Dick Dell | W/O |
| 1970 | South Orange | Grass | R64 | Thomaz Koch | 6-1 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.