Head to head
1
Hard
0
1
Clay
0
Jeff Borowiak's wins on the left · Marcelo Lara's on the right · bar lengths share one scale
All meetings (2)
| 1978 | US Open | Hard | R128 | Jeff Borowiak | 6-4 6-3 |
| 1973 | Tokyo | Clay | R64 | Jeff Borowiak | 6-2 6-3 |
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.