| 12 | Spring Creek Motocross | 500MX | August 28, 1983 | Yamaha |
| 9 | Lakewood Sports Cycle Center | 500MX | August 21, 1983 | Yamaha |
| 12 | Washougal Motocross | 500MX | August 14, 1983 | Yamaha |
| 5 | Lake Whitney Cycle Ranch | 500MX | June 19, 1983 | Yamaha |
| 8 | Broome-Tioga Sports Center | 500MX | June 5, 1983 | Yamaha |
| 7 | High Point Raceway | 500MX | May 29, 1983 | Yamaha |
| 6 | St Louis International Raceway | 500MX | May 22, 1983 | Yamaha |
| 6 | Gatorback Cycle Park | 500MX | April 24, 1983 | Yamaha |
| 4 | Saddleback Park | 500MX | April 10, 1983 | Yamaha |
| 19 | Hangtown Motocross Classic | 500MX | March 27, 1983 | Yamaha |
| 8 | Carlsbad Raceway | 500MX | August 15, 1982 | Yamaha |
| 13 | Washougal Motocross | 500MX | August 8, 1982 | Yamaha |
| 17 | CDR Tech Track | 500MX | June 13, 1982 | Yamaha |
Ventura, CA