When you combine fresh mountain air, rugged obstacles, and a Double-Double® waiting at the finish line, you get one of the most exciting events of the year: Big Bear Tough Mudder X In-N-Out Challenge, happening September 5–7, 2025, in Big Bear Lake, CA.
This isn’t just any Tough Mudder. It’s a full-on, In-N-Out-infused weekend packed with mud, mountains, muscle—and meat .
Choose Your Challenge: 5K or 10K
With two course options, there’s a muddy challenge for everyone:
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5K – 12+ Obstacles
Pricing starts at $120.35
Runs Friday, Saturday & Sunday
Use promo code BIGBEAR20 for 20% off -
10K – 20 Obstacles
Pricing starts at $169.19
Runs Friday, Saturday & Sunday
Use promo code BIGBEAR20 for 20% off
Both routes feature original obstacle designs with names like “Animal Style” (yes, those monkey bars are dangerous) and “Potato Sack Trap.” Expect unexpected fun, teamwork, and the perfect mix of pain and play.
Military & First Responders Save 25%
If you serve our country or your local community, you deserve some muddy appreciation. Get verified and save 25% on your registration.
Why Everyone’s Talking About It
Location: 42600 Moonridge Rd, Big Bear Lake, CA
Dates: September 5–7, 2025
Event Perks:
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Exclusive In-N-Out swag
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Free Double-Double® meal at the finish line (YES!)
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Finisher shirt, headband, and medal
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Access to the post-race Mudder Village Festival
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Cookout Truck on-site all weekend
This year’s event benefits the Slave 2 Nothing® Foundation, fighting substance abuse and human trafficking—giving every muddy step deeper meaning.
Don’t Want to Run? Be a Spectator!
Just want to cheer on friends (and grab a burger)? Spectator passes start at just $27.75. Or volunteer and run for free—a great way to get involved without the full body soreness.
Parking & Lockers
Skip the hassle. Parking is at the event location, and Lock N Roll lockers are available for stress-free storage. Reserve your locker online early!
Obstacle Highlights
Meat Grinder: Push 500 lb blocks with your crew
Potato Sack Trap: Net your way to glory
Animal Style: Monkey bars turned water launcher
Post-Race Festival
After conquering your course, kick back at Mudder Village with live music, recovery tents, drinks, and that perfect In-N-Out bite. Trust us—nothing tastes better after a 10K.
Group Deals
Racing with your crew? Groups of 10+ can score exclusive group rates. Corporate teams, bachelor parties, bootcamps—this is your next big team builder.
Ready to Get Muddy?
Register now: Click here
Use code: BIGBEAR20 to save 20%
♂️ Military & first responders: Save 25% with verification
Book Your Tough Mudder Adventure with Big Bear Lakefront Cabins
The Big Bear X In-N-Out Challenge isn’t just another Tough Mudder. It’s a full-on weekend adventure in one of SoCal’s most beautiful destinations, all while supporting a powerful cause. Whether you’re sprinting through mud pits or savoring your well-earned burger at the finish line, this is one event you’ll never forget.
From cozy one-bedroom cabins to spacious five-bedroom vacation rentals, Big Bear Lakefront Cabins has the perfect vacation rental for every group. Enjoy top amenities like pet-friendly stays, private hot tubs, EV chargers, game rooms, and stunning lakefront rentals. Whether you’re planning a family getaway or a 5-star luxury escape, your ideal cabin is waiting.