Head to head
0
Hard
1
2
Clay
1
1
Carpet
0
Jeff Borowiak's wins on the left · Ismail El Shafei's on the right · bar lengths share one scale
All meetings (5)
| 1977 | Columbus | Clay | R16 | Jeff Borowiak | 7-6 6-0 |
| 1976 | Indianapolis-2 | Clay | R64 | Jeff Borowiak | 7-6 6-7 6-2 |
| 1972 | Rotterdam WCT | Carpet | R32 | Jeff Borowiak | 7-5 4-6 6-4 |
| 1972 | Louisville WCT | Clay | R32 | Ismail El Shafei | 6-4 1-6 6-3 |
| 1972 | St. Louis WCT | Hard | R32 | Ismail El Shafei | 6-2 3-6 7-6 |
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.