Head to head
2
Clay
1
0
Grass
1
Yannick Noah's wins on the left · John Alexander's on the right · bar lengths share one scale
All meetings (4)
| 1983 | Roland Garros | Clay | R16 | Yannick Noah | 6-2 7-6 6-1 |
| 1982 | Boston | Clay | QF | Yannick Noah | 6-1 7-6 |
| 1981 | Sydney-2 | Grass | R32 | John Alexander | 6-3 4-6 7-6 |
| 1978 | Toronto | Clay | R64 | John Alexander | 6-7 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.