Head to head
2
Hard
0
0
Grass
1
1
Carpet
1
Jeff Borowiak's wins on the left · Billy Martin's on the right · bar lengths share one scale
All meetings (5)
| 1981 | Tampa | Hard | R32 | Jeff Borowiak | 6-7 6-3 7-5 |
| 1978 | Wimbledon | Grass | R128 | Billy Martin | 5-7 6-4 6-4 6-4 |
| 1977 | Basel | Hard | R16 | Jeff Borowiak | 6-3 6-7 6-4 |
| 1977 | Baltimore | Carpet | R32 | Billy Martin | 6-4 2-6 6-4 |
| 1976 | Atlanta WCT | Carpet | R16 | Jeff Borowiak | 6-3 5-7 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.