Head to head
0
Hard
4
1
Clay
2
1
Carpet
3
Jeff Borowiak's wins on the left · John Newcombe's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (11)
| 1974 | Maui | Hard | R16 | John Newcombe | 6-3 4-6 7-6 |
| 1974 | Charlotte WCT | Clay | QF | Jeff Borowiak | 6-2 6-4 |
| 1974 | New Orleans WCT | Carpet | F | John Newcombe | 6-4 6-2 |
| 1974 | Tucson | Hard | R64 | John Newcombe | 7-5 7-6 |
| 1972 | Johannesburg WCT | Hard | R16 | John Newcombe | 6-4 6-3 |
| 1972 | Vancouver WCT | Carpet | R16 | John Newcombe | 5-7 6-2 6-1 |
| 1972 | Fort Worth WCT | Hard | R16 | John Newcombe | 6-2 6-3 |
| 1972 | Houston WCT | Clay | R32 | John Newcombe | 6-2 7-5 |
| 1972 | Philadelphia WCT | Carpet | R16 | Jeff Borowiak | 6-1 5-7 6-4 |
| 1971 | Wembley | Carpet | R16 | John Newcombe | 6-4 6-2 |
| 1971 | Gstaad | Clay | QF | John Newcombe | 6-4 6-1 |
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.