Head to head
1
Hard
1
0
Grass
2
John Alexander's wins on the left · Tim Wilkison's on the right · bar lengths share one scale
All meetings (4)
| 1983 | Bristol | Grass | R32 | Tim Wilkison | 7-5 6-2 |
| 1981 | US Open | Hard | R128 | Tim Wilkison | 6-4 2-6 7-6 6-4 |
| 1978 | Sydney-2 | Grass | SF | Tim Wilkison | 6-4 2-6 6-4 |
| 1978 | Atlanta | Hard | R32 | John Alexander | 7-5 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.