In-N-Out Tough Mudder Challenge

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 main race distances: a 10K with over 20 obstacles and a 5K with more than 12 obstacles. The event emphasizes teamwork and endurance across muddy, challenging terrain.

Participants are welcomed at the Mudder Village Festival with In-N-Out’s signature Double-Double® meal. Proceeds support the Slave 2 Nothing Foundation, which combats substance abuse and human trafficking. The event fosters a spirited atmosphere, encouraging community and fundraising efforts alongside the physical challenge. Visit the organization's website for the most recent information.