Head to head
0
Hard
1
3
Carpet
0
Roy Emerson's wins on the left · John Alexander's on the right · bar lengths share one scale
All meetings (4)
| 1973 | Brussels WCT | Carpet | QF | Roy Emerson | 7-6(3) 4-6 6-2 |
| 1972 | Richmond WCT | Carpet | R16 | Roy Emerson | 3-6 6-3 6-3 |
| 1971 | Vancouver WCT | Carpet | R16 | Roy Emerson | 7-6 6-3 |
| 1971 | Boston WCT | Hard | R16 | John Alexander | 6-3 7-6 |
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.