Head to head
2
Hard
2
1
Clay
1
1
Grass
0
1
Carpet
3
Andrew Pattison's wins on the left · John Alexander's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (11)
| 1981 | South Orange | Clay | R32 | John Alexander | 6-4 6-4 |
| 1976 | Atlanta WCT | Carpet | QF | John Alexander | 6-4 7-6(6) |
| 1976 | Columbus WCT | Carpet | R16 | Andrew Pattison | 7-6(3) 6-7(5) 6-3 |
| 1975 | US Open | Clay | R64 | Andrew Pattison | 6-1 7-6 |
| 1975 | Chicago | Carpet | SF | John Alexander | 6-4 6-4 |
| 1974 | Johannesburg WCT | Hard | F | Andrew Pattison | 6-3 7-5 |
| 1973 | Johannesburg WCT | Hard | R16 | Andrew Pattison | 6-4 7-6(3) |
| 1973 | St. Louis WCT | Carpet | R32 | John Alexander | 6-3 6-4 |
| 1973 | Miami WCT | Hard | R16 | John Alexander | 6-3 6-3 |
| 1971 | Los Angeles | Hard | R64 | John Alexander | 6-4 6-4 |
| 1970 | Queen's Club | Grass | R64 | Andrew Pattison | 7-5 6-4 |
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.