Head to head
1
Hard
1
0
Carpet
1
Byron Bertram's wins on the left · John Alexander's on the right · bar lengths share one scale
All meetings (3)
| 1980 | Rancho Mirage | Hard | R32 | Byron Bertram | 2-6 7-6 6-2 |
| 1977 | Los Angeles-2 | Hard | R64 | John Alexander | 6-1 6-2 |
| 1977 | St. Louis WCT | Carpet | R16 | John Alexander | 6-3 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.