Head to head
2
Clay
1
1
Grass
0
Paul Gerken's wins on the left · Dick Dell's on the right · bar lengths share one scale
All meetings (4)
| 1973 | South Orange | Grass | R32 | Paul Gerken | 7-6 6-4 |
| 1972 | Toronto-2 | Clay | R128 | Paul Gerken | 7-5 6-2 |
| 1972 | Cincinnati | Clay | R64 | Paul Gerken | 6-2 4-6 6-2 |
| 1972 | Clemmons | Clay | R32 | Dick Dell | 6-1 1-6 6-3 |
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.