| 20 | High Point Raceway | 500MX 500MX | May 24, 1981 | Maico |
| 21 | Moto-X 338 | 500MX 500MX | May 17, 1981 | Maico |
| 21 | Sunshine Speedway | 500MX 500MX | August 26, 1979 | Maico |
| 11 | Metrolina Speedway Park | 500MX 500MX | August 19, 1979 | Maico |
| 6 | Broome-Tioga Sports Center | 500MX 500MX | August 12, 1979 | Maico |
| 15 | RedBud Track 'n Trail | 500MX 500MX | July 1, 1979 | Maico |
| 17 | Lakewood Sports Cycle Park | 500MX 500MX | June 24, 1979 | Maico |
| 19 | Atlanta International Raceway | 500MX 500MX | May 27, 1979 | Maico |
| 10 | Moto-X 338 | 500MX 500MX | May 20, 1979 | Maico |
| 18 | Sunshine Speedway | 500MX 500MX | August 27, 1978 | Maico |
| 18 | Metrolina Speedway Park | 500MX 500MX | August 20, 1978 | Maico |
| 11 | Agency Motocross | 500MX 500MX | August 13, 1978 | Maico |
| 13 | Atlanta International Raceway | 500MX 500MX | July 16, 1978 | Maico |
| 14 | High Point Raceway | 500MX 500MX | July 9, 1978 | Maico |
| 9 | RedBud Track 'n Trail | 500MX 500MX | July 2, 1978 | Maico |
| 15 | Sears Point International Raceway | 500MX 500MX | June 11, 1978 | Maico |
| 14 | Lake Whitney Cycle Ranch | 500MX 500MX | May 28, 1978 | Maico |
| 23 | Majters City Raceway | 500MX 500MX | August 21, 1977 | Maico |
| 26 | Metrolina Speedway Park | 500MX 500MX | August 7, 1977 | Maico |
| 23 | Lake Sugar Tree MX Park | 500MX 500MX | June 13, 1976 | CZ |
