Head to head
0
Clay
1
0
Grass
1
1
Carpet
1
Ross Case's wins on the left · Tom Okker's on the right · bar lengths share one scale
All meetings (4)
| 1977 | Wimbledon | Grass | R128 | Tom Okker | 6-2 6-1 6-1 |
| 1973 | Toronto-2 | Clay | R64 | Tom Okker | 4-6 6-3 6-2 |
| 1973 | Denver WCT | Carpet | R16 | Ross Case | 3-6 6-3 6-4 |
| 1973 | Washington WCT | Carpet | R32 | Tom Okker | 6-1 6-3 |
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.