| 9 | Washougal Motocross | 500MX | August 19, 1984 | Yamaha |
| 8 | Lakewood Sports Cycle Center | 500MX | August 12, 1984 | Yamaha |
| 9 | Spring Creek Motocross | 500MX | August 5, 1984 | Yamaha |
| 7 | Broome-Tioga Sports Center | 500MX | July 22, 1984 | Yamaha |
| 6 | RedBud Track 'n Trail | 500MX | July 1, 1984 | Yamaha |
| 12 | High Point Raceway | 500MX | May 27, 1984 | Yamaha |
| 7 | Six Flags | 500MX | May 13, 1984 | Yamaha |
| 8 | Hangtown Motocross Classic | 500MX | April 8, 1984 | Yamaha |
| 5 | Saddleback Park | 500MX | April 1, 1984 | Yamaha |
| 7 | Gatorback Cycle Park | 500MX | March 4, 1984 | Yamaha |
| 10 | Spring Creek Motocross | 500MX | August 28, 1983 | Yamaha |
| 8 | Lakewood Sports Cycle Center | 500MX | August 21, 1983 | Yamaha |
| 18 | Washougal Motocross | 500MX | August 14, 1983 | Yamaha |
| 22 | RedBud Track 'n Trail | 500MX | July 3, 1983 | Yamaha |
| 16 | Lake Whitney Cycle Ranch | 500MX | June 19, 1983 | Yamaha |
| 17 | Broome-Tioga Sports Center | 500MX | June 5, 1983 | Yamaha |
| 10 | High Point Raceway | 500MX | May 29, 1983 | Yamaha |
| 14 | St Louis International Raceway | 500MX | May 22, 1983 | Yamaha |
| 12 | Gatorback Cycle Park | 500MX | April 24, 1983 | Yamaha |
| 12 | Saddleback Park | 500MX | April 10, 1983 | Yamaha |
| 11 | Hangtown Motocross Classic | 500MX | March 27, 1983 | Yamaha |
Newbury Park, CA