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Mammoth Motocross 2023
New Dates: August 25th – Sept 3rd

August 25 - September 3

AMA Monster Energy Mammoth Motocross 2023
New Dates: August 25th – Sept 3rd

As you know, the Town of Mammoth Lakes experienced record-breaking amounts of snow this winter. Due to the significant snowpack, Mammoth Mountain and 2X Promotions worked closely with the US Forest Service to determine our best option for the upcoming Monster Energy Mammoth Motocross.

The 2023 Monster Energy Mammoth Motocross has been moved to August 25 – September 3. The event will follow the same format as previous years with Vet Weekend on August 25-27, Mini Days on August 28-30, and the Big Bike weekend on August 31-Sept 3rd.

2023 Event Schedule

Vet Weekend
Practice – Friday Aug 25th
Vet Racing – Sat Aug 26th – Sun Aug 27th*
**Junior 25+ & All Women race Big Bike Weekend, not Vet Weekend*

Mini Days
Practice – Monday Aug 28th
Racing – Tues Aug 29th – Wed Aug 30th

Big Bike Weekend
Practice – Thurs Aug 31st
Racing – Friday Sept 1st: Open Pro, B, and C; Junior 25+ A/B/C; Schoolboy 1 & 2; and 125/Supermini All Stars
Racing – Saturday Sept 2nd: 250 Pro, B, and C; FMF 2-stroke; Collegeboy; 125cc 12-17 B/C
Racing – Sunday Sept 3rd: 450 Pro, B, and C; Women; 250 B/C Open; 250C Jr 12-17

*Class days are tentative until class capacity is determined*

Road to Mammoth Qualifiers
Each racer will only have to qualify once per class. You may attend as many qualifiers as you wish, but you are only required to qualify once. You must race 2nd moto to qualify. All previously qualified riders are removed from that rounds’ results and the next rider(s) are moved up.

Each class has been given a certain percentage of riders that qualify directly into the 2023 Mammoth Motocross Championship. The closing date of qualified entries is June 19th; if you do not sign up by this deadline you forfeit your qualified entry. There will be a small percentage of open entries available at MammothMotocross.com on June 26th for those that did not qualify or sign up by the deadline. You must register in the class you qualified in at the qualifier; no transfers. Mammoth Motocross entries are non-transferrable and non-refundable. You MUST purchase practice.

Once a racer has qualified, they will be posted on the “I qualified” tab on 2xpromotions.com. Under “I Qualified”, select your class, and your name. The link will direct you to Regio to register for Mammoth Motocross.


August 25
September 3
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Mammoth MX
Sherwin Creek Rd
Mammoth Lakes, CA 93546 United States
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(760) 934-0605
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