Head to head
1
Clay
0
1
Carpet
0
Jeff Borowiak's wins on the left · Thomaz Koch's on the right · bar lengths share one scale
All meetings (2)
| 1975 | St. Louis WCT | Carpet | R16 | Jeff Borowiak | 6-4 6-2 |
| 1974 | Kitzbuhel | Clay | R32 | Jeff Borowiak | 3-6 6-3 6-2 |
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.