Events

In-N-Out x Tough Mudder Take Over Big Bear Lake – Are You Ready?

Join the In-N-Out x Tough Mudder Challenge in Big Bear Lake, September 5–7, 2025! Conquer epic 5K/10K obstacles, earn your headband, and celebrate with a Double-Double® from the In-N-Out Cookout Truck. 100% of Friday’s ticket sales support the Slave 2 Nothing Foundation.

Event Overview

In-N-Out Burger® and Tough Mudder  are teaming up for an incredible weekend, September 5-7, 2025, in Big Bear, California! Grab your family and friends to tackle world-famous obstacles, earn finisher swag, and experience a finisher feeling that’s never felt (or tasted) so good. Cross the finish line and grab your iconic orange headband, along with a freshly cooked Double-Double® from an In-N-Out Burger Cookout Truck.


There are 5K and 10K distances available. 100% of ticket sales on Friday, Sept. 5, will benefit the @slave2nothingfoundation, as will a portion of the proceeds on Saturday, Sept. 6, and Sunday, Sept. 7. This special event is designed to be fun for all! If you hit an obstacle you want to skip, you can do so and enjoy the challenge along the way.


You’ll push your limits and support each other while making a big difference in the fight against substance abuse in our communities!


Register now at  innouttoughmudder.com.



#innout #inotoughmudder #toughmudder #innoutburgertoughmudderchallenge. 

✅ Event Highlights

  • 📍 Where: Big Bear Lake, California
  • 📅 When: September 5–7, 2025
  • 🏃‍♂️ Distances: 5K & 10K
  • 🍔 Finish Line Treat: Fresh Double-Double® from In-N-Out
  • 🎗 Support a Cause: Friday ticket sales benefit the @slave2nothingfoundation
  • 😎 For Everyone: Skip obstacles if you need — it’s all about the experience!
  • 🔗 Register Now: innouttoughmudder.com

Frequently Asked Questions

In-N-Out Burger® and Tough Mudder are teaming up to bring a one-of-a-kind obstacle course experience to Big Bear Lake this September 5–7, 2025!

  • What is the In-N-Out Tough Mudder Challenge in Big Bear?

    It's a 5K and 10K obstacle course race taking place in Big Bear Lake from September 5–7, 2025, in partnership with In-N-Out Burger and Tough Mudder.

  • When is the Tough Mudder in Big Bear 2025?

    The In-N-Out Tough Mudder event in Big Bear takes place Friday, September 5 through Sunday, September 7, 2025.

  • Do you get In-N-Out at the end of the Tough Mudder?

    es! Every finisher gets a freshly cooked Double-Double® burger from the In-N-Out Burger Cookout Truck at the finish line.