Head to head
1
Clay
0
0
Carpet
1
William Brown's wins on the left · Paul Gerken's on the right · bar lengths share one scale
All meetings (2)
| 1975 | Louisville | Clay | R64 | William Brown | 4-6 6-4 6-1 |
| 1972 | Seattle | Carpet | R32 | Paul Gerken | 4-6 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.