AMA Western Region 250 Supercross
| 2024 | |
| 2023 | Jett Lawrence |
| 2022 | Christian Craig |
| 2021 | Justin Cooper |
| 2020 | Dylan Ferrandis |
| 2019 | Dylan Ferrandis |
| 2018 | Aaron Plessinger |
| 2017 | Justin Hill |
| 2016 | Cooper Webb |
| 2015 | Cooper Webb |
| 2014 | Jason Anderson |
| 2013 | Ken Roczen |
| 2012 | Eli Tomac |
| 2011 | Broc Tickle |
| 2010 | Jake Weimer |
| 2009 | Ryan Dungey |
| 2008 | Jason Lawrence |
| 2007 | Ryan Villopoto |
| 2006 | Grant Langston |
| 2005 | Ivan Tedesco |
| 2004 | Ivan Tedesco |
| 2003 | James Stewart |
| 2002 | Travis Preston |
| 2001 | Ernesto Fonseca |
| 2000 | Derrick Bentley |
| 1999 | Nathan Ramsey |
| 1998 | John Dowd |
| 1997 | Kevin Windham |
| 1996 | Kevin Windham |
| 1995 | Damon Huffman |
| 1994 | Damon Huffman |
| 1993 | Jimmy Gaddis |
| 1992 | Jeremy McGrath |
| 1991 | Jeremy McGrath |
| 1990 | Ty Davis |
| 1989 | Jeff Matiasevich |
| 1988 | Jeff Matiasevich |
| 1987 | Willie Surratt |
| 1986 | Donny Schmit |
| 1985 | Bobby Moore |
All-time Main Event Wins
| Eli Tomac | 12 |
| Cooper Webb | 11 |
| Ryan Dungey | 9 |
| Jake Weimer | 9 |
| Adam Cianciarulo | 7 |
| Jett Lawrence | 7 |
| Ryan Villopoto | 7 |
| Dylan Ferrandis | 6 |
| Justin Hill | 6 |
| Shane Mcelrath | 6 |
| Jason Anderson | 5 |
| Christian Craig | 5 |
| Hunter Lawrence | 5 |
| Aaron Plessinger | 5 |
| Cole Seely | 5 |
| Justin Cooper | 4 |
- Main Event Wins : No data (1985-2006)
All-time Fastest Qualifiers
| Dylan Ferrandis | 13 |
| Ryan Dungey | 10 |
| Justin Hill | 9 |
| Cooper Webb | 9 |
| Adam Cianciarulo | 8 |
| Justin Cooper | 8 |
| Jason Lawrence | 8 |
| Jett Lawrence | 8 |
| Ryan Villopoto | 8 |
| Christian Craig | 6 |
| Joshua Hansen | 6 |
| Ken Roczen | 6 |
| Eli Tomac | 6 |
| Jason Anderson | 5 |
| Dean Wilson | 5 |
| Marvin Musquin | 4 |
- Fastest Qualifiers : No data (1985-2006)
