| 13 | RedBud Track 'n Trail | 500MX 500MX | July 3, 1983 | Honda |
| 20 | Lake Whitney Cycle Ranch | 500MX 500MX | June 19, 1983 | Honda |
| 20 | Broome-Tioga Sports Center | 500MX 500MX | June 5, 1983 | Honda |
| 16 | High Point Raceway | 500MX 500MX | May 29, 1983 | Honda |
| 15 | St Louis International Raceway | 500MX 500MX | May 22, 1983 | Honda |
| 18 | Gatorback Cycle Park | 500MX 500MX | April 24, 1983 | Honda |
| 18 | Road Atlanta | 500MX 500MX | June 6, 1982 | Maico |
| 22 | High Point Raceway | 500MX 500MX | May 30, 1982 | Maico |
| 13 | Moto-X 338 | 500MX 500MX | May 16, 1982 | Maico |
| 7 | Carlsbad Raceway | 500MX 500MX | August 16, 1981 | Husqvarna |
| 9 | Washougal Motocross | 500MX 500MX | August 2, 1981 | Husqvarna |
| 12 | RedBud Track 'n Trail | 500MX 500MX | July 5, 1981 | Husqvarna |
| 7 | Broome-Tioga Sports Center | 500MX 500MX | June 28, 1981 | Husqvarna |
| 10 | CDR Tech Track | 500MX 500MX | June 14, 1981 | Husqvarna |
| 20 | Sunshine Speedway | 500MX 500MX | June 7, 1981 | Husqvarna |
| 17 | High Point Raceway | 500MX 500MX | May 24, 1981 | Husqvarna |
| 12 | Moto-X 338 | 500MX 500MX | May 17, 1981 | Husqvarna |
| 20 | Washougal Motocross | 500MX 500MX | July 6, 1980 | Suzuki |
| 23 | Sears Point International Raceway | 500MX 500MX | June 29, 1980 | Suzuki |
| 18 | Lakewood Sports Cycle Park | 500MX 500MX | June 15, 1980 | Suzuki |
| 9 | Atlanta International Raceway | 500MX 500MX | June 8, 1980 | Suzuki |
| 13 | RedBud Track 'n Trail | 500MX 500MX | June 1, 1980 | Suzuki |
| 6 | High Point Raceway | 500MX 500MX | May 25, 1980 | Suzuki |
| 19 | Broome-Tioga Sports Center | 500MX 500MX | August 12, 1979 | Maico |
| 9 | Moto-X 338 | 500MX 500MX | May 20, 1979 | Maico |
| 9 | Sunshine Speedway | 500MX 500MX | August 27, 1978 | Maico |
| 15 | Metrolina Speedway Park | 500MX 500MX | August 20, 1978 | Maico |
| 13 | Pine Top Motorcycle Park | 500MX 500MX | August 6, 1978 | Maico |
| 17 | High Point Raceway | 500MX 500MX | July 9, 1978 | Maico |
| 24 | Lake Whitney Cycle Ranch | 500MX 500MX | May 28, 1978 | Maico |