Head to head
1
Hard
0
1
Grass
0
1
Carpet
0
John Newcombe's wins on the left · Roy Barth's on the right · bar lengths share one scale
All meetings (4)
| 1972 | Fort Worth WCT | Hard | R32 | John Newcombe | 6-3 6-1 |
| 1971 | Tehran WCT | Clay | R32 | John Newcombe | W/O |
| 1971 | Philadelphia WCT | Carpet | R32 | John Newcombe | 6-2 6-3 |
| 1970 | Wimbledon | Grass | R128 | John Newcombe | 6-2 6-3 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.