Head to head
1
Hard
0
1
Grass
0
2
Carpet
0
Tom Okker's wins on the left · Ron Holmberg's on the right · bar lengths share one scale
All meetings (4)
| 1971 | Quebec WCT | Carpet | R32 | Tom Okker | 6-2 6-2 |
| 1969 | Fort Worth | Hard | QF | Tom Okker | 7-5 6-2 |
| 1969 | Wimbledon | Grass | R64 | Tom Okker | 3-6 2-6 6-1 6-4 6-2 |
| 1969 | New York-1 | Carpet | R32 | Tom Okker | 6-3 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.