Head to head
2
Hard
1
2
Clay
2
0
Grass
1
1
Carpet
1
Tom Okker's wins on the left · Fred Stolle's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (10)
| 1973 | Houston WCT | Clay | SF | Fred Stolle | 6-4 6-1 |
| 1972 | Tokyo WCT | Hard | QF | Fred Stolle | 6-4 2-6 6-4 |
| 1972 | Alamo WCT | Hard | R16 | Tom Okker | 6-3 0-6 6-4 |
| 1972 | Hilton Head WCT | Clay | R16 | Tom Okker | 6-1 6-1 |
| 1971 | Stockholm WCT | Hard | R32 | Tom Okker | 7-6 7-6 |
| 1971 | Barcelona WCT | Clay | R32 | Fred Stolle | 6-3 6-3 |
| 1970 | Tennis Champions Classic | Carpet | RR | Tom Okker | 6-3 6-3 2-6 6-1 |
| 1969 | Queen's Club | Grass | QF | Fred Stolle | 6-8 8-6 6-4 |
| 1969 | Monte-Carlo | Clay | R16 | Tom Okker | 6-4 4-6 6-2 |
| 1969 | Los Angeles-1 | Carpet | R16 | Fred Stolle | 6-5 6-4 |
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.