Head to head
1
Hard
1
Frank Froehling's wins on the left · Tom Okker's on the right · bar lengths share one scale
All meetings (2)
| 1972 | St. Louis WCT | Hard | R16 | Tom Okker | 4-6 7-6 6-4 |
| 1972 | Las Vegas WCT | Hard | QF | Frank Froehling | 6-7 6-3 7-5 |
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.