Head to head
1
Clay
1
John Alexander's wins on the left · Mike Belkin's on the right · bar lengths share one scale
All meetings (2)
| 1969 | Washington | Clay | R32 | Mike Belkin | 6-4 9-7 |
| 1969 | Houston | Clay | R32 | John Alexander | 6-3 6-0 |
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.