Head to head
1
Hard
0
1
Grass
0
John Sadri's wins on the left · Billy Martin's on the right · bar lengths share one scale
All meetings (2)
| 1980 | Toronto | Hard | R32 | John Sadri | 7-6 7-5 |
| 1980 | Wimbledon | Grass | R128 | John Sadri | 6-4 6-2 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.