| 14 | Motocross West | 500MX 500MX | September 1, 1975 | Bultaco |
| 20 | Ohio International Raceway | 500MX 500MX | August 24, 1975 | Bultaco |
| 18 | Moto-Masters Park | 500MX 500MX | August 18, 1974 | Bultaco |
| 17 | Appalachia Lake Park | 500MX 500MX | May 5, 1974 | Bultaco |
| 10 | RedBud Track 'n Trail | 500MX 500MX | April 28, 1974 | Bultaco |
| 12 | Alabama International Speedway | 250MX 450 Class | September 1, 1973 | Bultaco |
| 11 | Lake Whitney Cycle Ranch | 250MX 450 Class | June 17, 1973 | Bultaco |
| 6 | Opelousas, LA | 250MX 450 Class | May 6, 1973 | Bultaco |
| 16 | Daytona International Speedway | 250MX 450 Class | March 10, 1973 | Bultaco |
| 7 | Alabama International Speedway | 250MX 450 Class | September 2, 1972 | Bultaco |
