Head to head
3
Hard
0
0
Clay
1
0
Grass
1
Bob Carmichael's wins on the left · Frank Froehling's on the right · bar lengths share one scale
All meetings (5)
| 1972 | Alamo WCT | Hard | R32 | Bob Carmichael | 6-2 6-2 |
| 1971 | Los Angeles | Hard | R16 | Bob Carmichael | 6-3 6-0 |
| 1971 | US Open | Grass | R16 | Frank Froehling | 7-6 6-4 6-4 |
| 1971 | Washington WCT | Clay | R64 | Frank Froehling | 7-5 3-6 7-5 |
| 1970 | Phoenix | Hard | QF | Bob Carmichael | 6-4 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.