Head to head
2
Hard
0
1
Clay
0
1
Carpet
0
Paul Gerken's wins on the left · Antonio Zugarelli's on the right · bar lengths share one scale
All meetings (4)
| 1974 | Tokyo WCT | Hard | R16 | Paul Gerken | 7-6 6-3 |
| 1974 | Tucson | Hard | R64 | Paul Gerken | 6-2 6-3 |
| 1974 | Philadelphia WCT | Carpet | R64 | Paul Gerken | 2-6 6-1 7-6(4) |
| 1973 | Nice | Clay | R32 | Paul Gerken | 6-3 2-6 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.