Head to head
1
Hard
1
0
Grass
1
1
Carpet
0
Jeff Borowiak's wins on the left · Fred Stolle's on the right · bar lengths share one scale
All meetings (4)
| 1973 | New Delhi | Grass | R16 | Fred Stolle | 3-6 8-6 9-7 |
| 1972 | Alamo WCT | Hard | R32 | Fred Stolle | 6-3 4-6 6-3 |
| 1971 | Cologne WCT | Carpet | R16 | Jeff Borowiak | 6-4 6-3 |
| 1971 | Berkeley WCT | Hard | R64 | Jeff Borowiak | 6-2 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.