| 12 | Keith S Johnson | Budds Creek Motocross | 500MX | October 7, 1990 |
| 9 | Keith S Johnson | Steel City Raceway | 500MX | September 30, 1990 |
| 21 | Keith S Johnson | Broome-Tioga Sports Center | 500MX | September 2, 1990 |
| 19 | Keith S Johnson | Spring Creek Motocross | 500MX | August 19, 1990 |
| 19 | Keith S Johson | Washougal Motocross | 500MX | August 12, 1990 |
| 21 | Stephen Crowe II | High Point Raceway | 125MX | May 27, 1990 |
| 24 | Mark Musselman | High Point Raceway | 250MX | May 27, 1990 |
| 27 | Keith S Johnson | Hangtown Motocross Classic | 250MX | April 1, 1990 |
| 30 | Eddie Hicks | Hangtown Motocross Classic | 250MX | April 1, 1990 |
| 16 | Keith S Johnson | Las Vegas | 250SX | March 17, 1990 |
| 12 | Keith S Johnson | Gatorback Cycle Park | 250MX | March 4, 1990 |
| 21 | Mark Musselman | Atlanta | 125ESX | February 24, 1990 |
| 18 | Keith S Johnson | Houston | 250SX | February 3, 1990 |
