Head to head
0
Hard
3
3
Clay
1
0
Carpet
2
Manuel Orantes'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 (9)
| 1978 | Roland Garros | Clay | R128 | Manuel Orantes | 3-6 6-3 6-2 6-2 |
| 1977 | Richmond WCT | Carpet | QF | Tom Okker | 7-6(4) 6-2 |
| 1976 | Wembley | Carpet | R32 | Tom Okker | 6-3 3-6 6-3 |
| 1976 | Madrid-2 | Clay | R16 | Manuel Orantes | 6-1 6-2 |
| 1973 | Masters | Hard | RR | Tom Okker | 6-1 6-3 |
| 1973 | Toronto-2 | Clay | F | Tom Okker | 6-3 6-2 6-1 |
| 1973 | Rome | Clay | SF | Manuel Orantes | 3-6 7-6 6-3 4-6 7-6 |
| 1968 | Kingston | Hard | F | Tom Okker | 6-2 6-4 |
| 1968 | Macon | Hard | R32 | Tom Okker | 3-6 6-3 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.