Mammoth Motocross

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  • FMF
  • KTM
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  • Wiseco
  • Fasthouse
  • 2X Promotions
  • Lucas_Oil_150x30
  • AmericoreSMX
  • Mechanix Wear
  • VP Racing Fuels
  • Bell Helmets
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  • Twisted Development
  • Coker Pump
  • SVC Simi Valley Cycles


When June 2019 hits the crews from Mammoth Motocross will be hard at work perfecting the dirt and getting ready for another "best year ever".  Mammoth Motocross officially returns June 21–30, 2019 and we can't wait to see you all there.  Mark those calendars.



Public registration for the remaining Mammoth Motocross spots is now open. Registration schedule is as follows:

Monday, May 20

8AM  Vet Weekend 
12PM  Lucas Mini Championship
 2PM  All Other Categories 


Register Now



That's A Wrap on 2019! The RTM series finished in April 2019. Thanks to everyone who joined us on the 2019 circuit.


Keeping the Vibe Alive

Every summer since 1968, racers have flocked to Mammoth Lakes for this classic event – the oldest continuous running motocross in the USA. The track has changed a little over the years, but the fun hasn’t. Many of the top racers in the world have honed their skills at this event. There have been some epic battles over the years and many racers have made a name for themselves on this track. 

Riders like Ricky Carmichael, Jeremy McGrath, Rick Johnson, Johnny O'Mara, Broc Glover, Donny Schmitt, Steve Lamson, Gary Jones, Kevin Windham, David Bailey, Jeff Ward, Ron Lechien, Bob Hannah, James Stewart, Mike Bell, Donny Hansen, Ryan Dungey, Ryan Villopoto, Eli Tomac and many more have raced Mammoth and moved on to giant success. 

It also become one of the major amateur events in the country as well. You can see the factory riders of tomorrow racing in the mini classes at Mammoth today.

Vp Racing Fuels

Vp Racing Fuels

Vp Racing Fuels is the official fuel of Mammoth Motocross and will be on site for all your needs. Pre-orders available by calling 951.696.5100.



Check out all the fun and be sure to follow along and share by tagging #MammothMX on social media.