| 35 | Lance Smail | Steel City Raceway | 250MX | September 6, 1998 |
| 38 | Kelly Smith | Steel City Raceway | 250MX | September 6, 1998 |
| 22 | Jim L Neese | Steel City Raceway | 125MX | September 6, 1998 |
| 23 | David B Kratz | Steel City Raceway | 125MX | September 6, 1998 |
| 16 | Kelly Smith | Broome-Tioga Sports Center | 250MX | August 30, 1998 |
| 22 | Jim L Neese | Broome-Tioga Sports Center | 125MX | August 30, 1998 |
| 27 | James Povolny | Broome-Tioga Sports Center | 125MX | August 30, 1998 |
| 12 | Lance Smail | Spring Creek Motocross | 250MX | August 16, 1998 |
| 36 | Jimmy H Lamastus | Spring Creek Motocross | 250MX | August 16, 1998 |
| 15 | Kelly Smith | Spring Creek Motocross | 125MX | August 16, 1998 |
| 20 | James Povolny | Spring Creek Motocross | 125MX | August 16, 1998 |
| 37 | Robbie Horton | Spring Creek Motocross | 125MX | August 16, 1998 |
| 30 | Kris Rourke | Washougal Motocross | 250MX | August 2, 1998 |
| 35 | Robert Naughton | Washougal Motocross | 250MX | August 2, 1998 |
| 35 | James Povolny | Washougal Motocross | 125MX | August 2, 1998 |
| 15 | Jim L Neese | Kenworthy's Motocross Park | 125MX | July 25, 1998 |
| 21 | Lance Smail | Kenworthy's Motocross Park | 125MX | July 25, 1998 |
| 26 | James Povolny | Kenworthy's Motocross Park | 125MX | July 25, 1998 |
| 27 | Kelly Smith | Kenworthy's Motocross Park | 125MX | July 25, 1998 |
| 31 | Robbie Horton | Kenworthy's Motocross Park | 125MX | July 25, 1998 |
| 40 | Damien L Plotts | Kenworthy's Motocross Park | 125MX | July 25, 1998 |
| 17 | Lance Smail | Unadilla Motocross | 250MX | July 19, 1998 |
| 19 | Robbie Horton | Unadilla Motocross | 125MX | July 19, 1998 |
| 20 | Damien L Plotts | Unadilla Motocross | 125MX | July 19, 1998 |
| 31 | Kelly Smith | Unadilla Motocross | 125MX | July 19, 1998 |
| 34 | James Povolny | Unadilla Motocross | 125MX | July 19, 1998 |
| 10 | Lance Smail | RedBud Track 'n Trail | 250MX | July 5, 1998 |
| 23 | Kelly Smith | RedBud Track 'n Trail | 125MX | July 5, 1998 |
| 24 | Robbie Horton | RedBud Track 'n Trail | 125MX | July 5, 1998 |
| 30 | James Povolny | RedBud Track 'n Trail | 125MX | July 5, 1998 |
| 16 | Lance Smail | Budds Creek Motocross | 250MX | June 21, 1998 |
| 21 | Robbie Horton | Budds Creek Motocross | 125MX | June 21, 1998 |
| 29 | Damien L Plotts | Budds Creek Motocross | 125MX | June 21, 1998 |
| 30 | James Povolny | Budds Creek Motocross | 125MX | June 21, 1998 |
| 14 | Lance Smail | Moto-X 338 | 250MX | June 14, 1998 |
| 13 | Kelly Smith | Moto-X 338 | 125MX | June 14, 1998 |
| 15 | Robbie Horton | Moto-X 338 | 125MX | June 14, 1998 |
| 23 | James Povolny | Moto-X 338 | 125MX | June 14, 1998 |
| 17 | Robbie Horton | High Point Raceway | 125MX | May 24, 1998 |
| 28 | Kelly Smith | High Point Raceway | 125MX | May 24, 1998 |
| 29 | Damien L Plotts | High Point Raceway | 125MX | May 24, 1998 |
| 28 | Robbie Horton | Hangtown Motocross Classic | 125MX | May 17, 1998 |
| 10 | Lance Smail | Glen Helen Raceway | 250MX | May 10, 1998 |
| 18 | Robbie Horton | Glen Helen Raceway | 125MX | May 10, 1998 |
| 31 | Robert Naughton | Glen Helen Raceway | 125MX | May 10, 1998 |
| 34 | Jimmy H Lamastus | Glen Helen Raceway | 125MX | May 10, 1998 |
| 20 | James Povolny | Las Vegas | 125SX/Shootout | May 2, 1998 |
| 18 | Guy Cooper | Irving | 125WSX | April 25, 1998 |
| 10 | Jim L Neese | Charlotte | 125ESX | April 17, 1998 |
| 14 | James Povolny | Charlotte | 125ESX | April 17, 1998 |
| 10 | James Povolny | Pontiac | 125ESX | April 4, 1998 |
| 16 | Jim L Neese | Pontiac | 125ESX | April 4, 1998 |
| 20 | Kelly Smith | Pontiac | 125ESX | April 4, 1998 |
| 9 | James Povolny | St. Louis | 125ESX | March 28, 1998 |
| 16 | Robbie Horton | St. Louis | 125ESX | March 28, 1998 |
| 18 | James Povolny | Minneapolis | 250SX | March 21, 1998 |
| 6 | Jim L Neese | New Orleans | 125ESX | March 14, 1998 |
| 15 | James Povolny | New Orleans | 125ESX | March 14, 1998 |
| 18 | Kelly Smith | New Orleans | 125ESX | March 14, 1998 |
| 4 | Jim L Neese | Daytona | 125ESX | March 7, 1998 |
| 6 | James Povolny | Daytona | 125ESX | March 7, 1998 |
| 19 | Lance Smail | Daytona | 250SX | March 7, 1998 |
| 3 | Robbie Horton | Tampa | 125ESX | February 28, 1998 |
| 11 | Kelly Smith | Tampa | 125ESX | February 28, 1998 |
| 15 | James Povolny | Tampa | 125ESX | February 28, 1998 |
| 6 | Jim L Neese | Atlanta | 125ESX | February 21, 1998 |
| 10 | James Povolny | Atlanta | 125ESX | February 21, 1998 |
| 16 | Jim L Neese | Indianapolis | 125ESX | February 14, 1998 |
| 19 | James Povolny | Indianapolis | 125ESX | February 14, 1998 |
| 17 | Guy Cooper | San Diego | 125WSX | February 7, 1998 |
| 20 | Jimmy H Lamastus | Seattle | 125WSX | January 31, 1998 |
| 16 | Lance Smail | Seattle | 250SX | January 31, 1998 |
| 15 | Lance Smail | Tempe | 250SX | January 24, 1998 |
| 17 | Lance Smail | Los Angeles | 250SX | January 10, 1998 |
