Head to head
1
Hard
0
2
Clay
0
2
Grass
0
0
Carpet
1
Tom Okker's wins on the left · Ray Ruffels's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 1976 | Indianapolis WCT | Carpet | R16 | Ray Ruffels | 6-2 6-3 |
| 1972 | Bretton Woods WCT | Clay | R16 | Tom Okker | 6-2 6-3 |
| 1971 | Berkeley WCT | Hard | R16 | Tom Okker | 6-4 7-6 |
| 1971 | Wimbledon | Grass | R64 | Tom Okker | 8-9 6-4 6-3 6-4 |
| 1970 | Brussels | Clay | R16 | Tom Okker | 6-0 6-0 6-1 |
| 1970 | Auckland | Grass | SF | Tom Okker | 6-1 6-4 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.