Head to head
0
Clay
1
1
Grass
0
Jeff Borowiak's wins on the left · Peter Feigl's on the right · bar lengths share one scale
All meetings (2)
| 1983 | Australian Open | Grass | R128 | Jeff Borowiak | 6-3 3-6 6-3 7-5 |
| 1978 | Manila | Clay | R32 | Peter Feigl | 6-4 4-6 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.