| 6 | High Point Raceway | 250MX 450 Class | July 8, 1979 | Yamaha |
| 7 | RedBud Track 'n Trail | 250MX 450 Class | July 1, 1979 | Yamaha |
| 7 | Lakewood Sports Cycle Park | 250MX 450 Class | June 24, 1979 | Yamaha |
| 13 | Sears Point International Raceway | 250MX 450 Class | June 17, 1979 | Yamaha |
| 5 | Atlanta International Raceway | 250MX 450 Class | May 27, 1979 | Yamaha |
| 5 | Moto-X 338 | 250MX 450 Class | May 20, 1979 | Yamaha |
| 8 | Omaha Moto Park | 250MX 450 Class | April 22, 1979 | Yamaha |
| 14 | Canyon Raceway | 250MX 450 Class | April 8, 1979 | Yamaha |
| 8 | Racing World | 250MX 450 Class | April 1, 1979 | Yamaha |
| 13 | Hangtown Motocross Classic | 250MX 450 Class | March 25, 1979 | Yamaha |
| 4 | Sunshine Speedway | 125MX 250 Class | August 27, 1978 | Suzuki |
| 4 | Metrolina Speedway Park | 125MX 250 Class | August 20, 1978 | Suzuki |
| 3 | Agency Motocross | 125MX 250 Class | August 13, 1978 | Suzuki |
| 6 | Pine Top Motorcycle Park | 125MX 250 Class | August 6, 1978 | Suzuki |
| 14 | Atlanta International Raceway | 125MX 250 Class | July 16, 1978 | Suzuki |
| 11 | Moto-X 338 | 125MX 250 Class | May 7, 1978 | Suzuki |
| 18 | Rio Bravo MX Park | 125MX 250 Class | April 23, 1978 | Suzuki |
| 18 | Racing World | 125MX 250 Class | April 16, 1978 | Suzuki |
| 12 | Hangtown Motocross Classic | 125MX 250 Class | April 9, 1978 | Suzuki |
