Head to head
1
Clay
0
0
Grass
2
Dick Stockton's wins on the left · John Marks's on the right · bar lengths share one scale
All meetings (3)
| 1979 | Adelaide | Grass | R32 | John Marks | 7-5 6-2 |
| 1978 | Wimbledon | Grass | R128 | John Marks | 6-2 9-8 7-5 |
| 1978 | Roland Garros | Clay | R64 | Dick Stockton | 6-1 6-0 7-5 |
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.