In-N-Out Tough Mudder Challenge
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About the race
The In-N-Out Burger Tough Mudder Challenge is a dynamic obstacle course event held at Bear Mountain Resort in Big Bear Lake, California. Scheduled for September 5–7, 2025, it features two race distances: a 10K with over 20 obstacles and a 5K with more than 12 obstacles, designed to test endurance, grit, and teamwork. The event supports the Slave 2 Nothing Foundation, which combats substance abuse and human trafficking.
Participants enjoy a festive atmosphere with a Mudder Village Festival and a fresh In-N-Out Double-Double® meal at the finish line. Spectator passes and VIP viewing options are available, making it a community-focused, challenging, and impactful sporting event. Visit the organization's website for the most recent information.
