Head to head
0
Hard
1
1
Clay
0
Warren Maher's wins on the left · John Marks's on the right · bar lengths share one scale
All meetings (2)
| 1979 | Hobart | Hard | R32 | John Marks | 6-2 6-4 |
| 1979 | Indianapolis | Clay | R64 | Warren Maher | 6-2 6-2 |
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.