Head to head
1
Hard
0
1
Grass
0
Jeff Borowiak's wins on the left · Peter Rennert's on the right · bar lengths share one scale
All meetings (2)
| 1983 | La Quinta | Hard | R64 | Jeff Borowiak | 7-6 6-1 |
| 1982 | Australian Open | Grass | R32 | Jeff Borowiak | 7-6 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.