Head to head
1
Hard
5
0
Grass
1
0
Carpet
4
Frew McMillan's wins on the left · Tom Okker's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (11)
| 1977 | Cologne | Hard | R32 | Tom Okker | 6-3 6-4 |
| 1976 | Johannesburg WCT | Hard | R16 | Tom Okker | 7-6 3-6 7-6 |
| 1976 | Rotterdam WCT | Carpet | R16 | Tom Okker | 7-5 6-2 |
| 1975 | Johannesburg WCT | Hard | SF | Tom Okker | 6-3 6-3 |
| 1974 | Johannesburg-2 | Hard | R16 | Tom Okker | 6-2 4-6 6-1 |
| 1973 | Seattle | Carpet | R16 | Tom Okker | 6-1 6-4 |
| 1971 | Vancouver WCT | Carpet | R32 | Tom Okker | 6-3 3-6 6-4 |
| 1971 | Philadelphia WCT | Carpet | R32 | Tom Okker | 6-1 6-3 |
| 1970 | US Open | Grass | R64 | Tom Okker | 6-3 6-7 6-3 6-2 |
| 1970 | Johannesburg | Hard | R16 | Frew McMillan | 2-6 11-9 6-3 6-4 |
| 1968 | Durban-1 | Hard | R16 | Tom Okker | 6-3 6-0 9-7 |
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.