2025 Mammoth Super 10K World Championship & Trifecta Weekend Hosted by Visit Mammoth

Get ready for the first-ever Spartan 10K Super World Championship at Mammoth Mountain Ski Area, California. This breathtaking new venue will push even the toughest Spartans to their limits with a mix of high-altitude terrain and brutal obstacles. Compete in the Championship heat, or tackle a Sprint, Super, or Beast during this action-packed Trifecta weekend. Grit, glory, and exclusive championship swag are up for grabs. If you're ready to make history, dominate the course, and prove you're unbreakable, this is your ultimate challenge.
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