AMA 250 Supercross – Seattle
| 2026 | Haiden Deegan |
| 2025 | Cole Davies |
| 2024 | Levi Kitchen |
| 2023 | Jett Lawrence |
| 2022 | Hunter Lawrence |
| 2019 | Dylan Ferrandis |
| 2018 | Aaron Plessinger |
| 2017 | Aaron Plessinger |
| 2014 | Cole Seeley |
| 2013 | Ken Roczen |
| 2012 | Ryan Sipes |
| 2011 | Cole Seeley |
| 2010 | Broc Tickle |
| 2009 | Ryan Dungey |
| 2008 | Ryan Dungey |
| 2007 | Ryan Villopoto |
| 2006 | Grant Langston |
| 2005 | Nathan Ramsey |
| 1999 | Nathan Ramsey |
| 1998 | David Vuillemin |
| 1997 | David Vuillemin |
| 1996 | Kevin Windham |
| 1995 | Damon Huffman |
| 1994 | Ryan Hughes |
| 1993 | Phil Lawrence |
| 1992 | Jeremy McGrath |
| 1991 | Jeremy McGrath |
| 1990 | Ty Davis |
| 1989 | Jeff Matiasevich |
| 1989 | Jeff Matiasevich |
| 1988 | Jeff Matiasevich |
| 1988 | Jeff Matiasevich |
| 1987 | Donnie Schmit |
| 1987 | Kyle Lewis |
| 1986 | Willie Surratt |
| 1986 | Donnie Schmit |
| 1985 | Bader Manneh |
| 1985 | Mike Healey |
Team
| 2026 | Monster Energy Star Racing Yamaha |
| 2025 | Monster Energy Star Racing Yamaha |
| 2024 | Monster Energy Pro Circuit Kawasaki |
| 2023 | Team Honda HRC |
| 2022 | Team Honda HRC |
| 2019 | Monster Energy Star Racing Yamaha |
| 2018 | Monster Energy Yamaha |
| 2017 | Yamalube Star Racing Yamaha |
| 2014 | Troy Lee Designs Honda |
| 2013 | Red Bull KTM |
| 2012 | Star Valli Yamaha Team |
| 2011 | Troy Lee Designs Honda |
| 2010 | DNA Shred Stix / Star Racing Yamaha |
| 2009 | Rockstar Makita Suzuki |
| 2008 | Rockstar Makita Suzuki |
| 2007 | Monster Energy Pro Circuit |
| 2006 | Monster Energy Pro Circuit |
| 2005 | Red Bull KTM Race Team |
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Qualifying
| 2026 | 0:49.414 | Haiden Deegan |
| 2025 | 0:46.993 | Haiden Deegan |
| 2024 | 0:51.803 | Michael Mosiman |
| 2023 | 0:51.027 | Jett Lawrence |
| 2022 | 0:47.815 | Michael Mosiman |
| 2019 | 0:45.907 | Dylan Ferrandis |
| 2018 | 1:08.115 | Brandan Leith |
| 2017 | 0:59.717 | Justin Hill |
| 2014 | 0:55.054 | Dean Wilson |
| 2013 | 0:54.428 | Eli Tomac |
| 2012 | 0:54.121 | Marvin Musquin |
| 2011 | 0:53.425 | Kyle Cunningham |
| 2010 | 0:58.418 | Jake Weimer |
| 2009 | 0:55.847 | Ryan Dungey |
| 2008 | 0:51.865 | Jason Lawrence |
| 2007 | 0:52.804 | Ryan Villopoto |
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