Head to head
0
Hard
2
2
Grass
0
2
Carpet
1
Mark Cox's wins on the left · Jeff Borowiak's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (7)
| 1977 | Queen's Club | Grass | R64 | Mark Cox | 9-8 9-8 |
| 1975 | Philadelphia WCT | Carpet | R64 | Jeff Borowiak | 7-5 4-6 6-3 |
| 1973 | Stockholm | Hard | R32 | Jeff Borowiak | 0-6 7-6 7-5 |
| 1973 | Nottingham | Grass | R64 | Mark Cox | 2-6 9-7 6-3 |
| 1972 | Gothenburg WCT | Carpet | QF | Mark Cox | 7-6 6-2 |
| 1972 | Essen WCT | Carpet | R32 | Mark Cox | 7-6 1-6 6-1 |
| 1972 | Los Angeles-2 | Hard | R32 | Jeff Borowiak | 6-4 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.