| 12 | Billy Whitley | Spring Creek Motocross | 125MX | August 14, 1988 |
| 13 | Billy Whitley | Good Times MX Park | 125MX | June 5, 1988 |
| 4 | Robert Naughton | Irving | 125E/WSX | April 16, 1988 |
| 10 | Robert Naughton | Pontiac 2 | 125ESX | April 10, 1988 |
| 7 | Billy Whitley | Pontiac 1 | 125ESX | April 9, 1988 |
| 14 | Brian McElroy | Pontiac 1 | 125ESX | April 9, 1988 |
| 17 | Robert Naughton | Pontiac 1 | 125ESX | April 9, 1988 |
| 20 | Robert Naughton | Hangtown Motocross Classic | 125MX | March 27, 1988 |
| 21 | Gordon Ward | Hangtown Motocross Classic | 250MX | March 27, 1988 |
| 2 | Brian McElroy | Daytona | 125ESX | March 5, 1988 |
| 5 | Robert Naughton | Daytona | 125ESX | March 5, 1988 |
| 8 | Billy Whitley | Daytona | 125ESX | March 5, 1988 |
| 8 | Mike Healey | Seattle 1 | 250SX | February 13, 1988 |
| 14 | Billy Whitley | Houston | 125E/WSX | February 6, 1988 |