Head to head
2
Clay
1
Jeff Borowiak's wins on the left · Hans Kary's on the right · bar lengths share one scale
All meetings (3)
| 1979 | Roland Garros | Clay | R128 | Jeff Borowiak | 6-4 3-6 2-6 6-2 6-3 |
| 1977 | Dusseldorf | Clay | R32 | Jeff Borowiak | 6-3 7-5 |
| 1973 | Bastad | Clay | R32 | Hans Kary | 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.