| 1 | Jimmy Ellis | Irving | 250SX sx450SX | February 28, 1975 |
| 20 | Gary Jones | Irving | 250SX sx450SX | February 28, 1975 |
| 1 | Jimmy Ellis | Daytona | 250SX sx450SX | March 8, 1975 |
| 9 | Mike Runyard | Daytona | 250SX sx450SX | March 8, 1975 |
| 18 | Mike Runyard | Houston | 250SX sx450SX | March 14, 1975 |
| 1 | Jimmy Ellis | Houston | 250SX sx450SX | March 14, 1975 |
| 4 | Mike Runyard | Hangtown Motocross Classic | 250MX mx450 | April 6, 1975 |
| 18 | Lars Larsson | Hangtown Motocross Classic | 250MX mx450 | April 6, 1975 |
| 3 | Jimmy Ellis | Hangtown Motocross Classic | 250MX mx450 | April 6, 1975 |
| 10 | Jimmy Ellis | Appalachia Lake Park | 250MX mx450 | May 4, 1975 |
| 11 | Mike Runyard | Appalachia Lake Park | 250MX mx450 | May 4, 1975 |
| 6 | Mike Runyard | Castle Point Moto Sport Park | 250MX mx450 | May 25, 1975 |
| 9 | Mike Runyard | Omaha Moto Park | 250MX mx450 | June 1, 1975 |
| 2 | Jimmy Ellis | Omaha Moto Park | 250MX mx450 | June 1, 1975 |
| 5 | Mike Runyard | Lake Whitney Cycle Ranch | 250MX mx450 | June 15, 1975 |
| 2 | Jimmy Ellis | Midland Motocross Park | 125MX mx250 | June 29, 1975 |
| 9 | Charles Lott | Midland Motocross Park | 125MX mx250 | June 29, 1975 |
| 10 | Mike Runyard | Los Angeles | 250SX sx450SX | July 19, 1975 |
| 1 | Jimmy Ellis | Los Angeles | 250SX sx450SX | July 19, 1975 |