Tough Mudder - Big Bear

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, 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 receive finisher rewards including a meal from In-N-Out’s Cookout Trucks, a medal, shirt, and headband. Spectator passes and VIP options are also available. Visit the organization's website for the most recent information.

The Temecula Spartan Event Weekend, held at Lake Elsinore Raceway in California, offers a thrilling obstacle course experience set against the scenic backdrop of Lake Elsinore. Participants can choose from a Sprint 5K with 20 obstacles, a Super 10K featuring 25 obstacles, and kids' races ranging from 1 to 3 km. The course includes rugged trails, rolling terrain, and iconic Spartan challenges like the Atlas Carry, Rope Climb, Spear Throw, and Fire Jump. The event benefits from mild late-September Southern California weather, making it ideal for racers of all levels seeking a challenging and scenic outdoor adventure. Visit the organization's website for the most recent information.

Ruff Run California is an annual obstacle run held in Phelan, CA, set in the scenic high desert at 4,200 feet elevation. The event features a 4ishK course with over 20 obstacles that challenge participants and their dogs, testing training, teamwork, and strategy through mud, water, and mental challenges. The 2025 race includes a new course section and custom jerseys for all participants. Besides the competitive 4k wave, there are also a 4ishK fun run and a 1k fun walk/run. The event fosters a lively atmosphere with an after-party featuring music, games, and vendors, making it a fun day for both runners and their pups. Visit the organization's website for the most recent information.

The SoCal Spartan Event Weekend, held at Lake Perris State Recreation Area in Perris, California, offers a challenging obstacle course race experience with scenic mountain views. Participants can choose from multiple race distances: the Sprint (5K with 20 obstacles), Super (10K with 25 obstacles), Beast (21K with 30 obstacles), and a Kids Race (1-3K with obstacles). The course is described as flat and fast but demanding, set in a well-maintained park with camping facilities. The event fosters a competitive yet fun atmosphere suitable for individuals, teams, and families, making it a memorable physical challenge in Southern California’s rugged wilderness. Visit the organization's website for the most recent information.

The San Diego Spartan Event Weekend, held at Pala Fox Raceway in California, offers a thrilling obstacle course racing experience set against the scenic Pala Valley. Featuring a Sprint 5K with 20 challenging obstacles, a Super 10K with 25 obstacles, and a Kids Race, the event caters to all ages and skill levels. The course includes rugged terrain, rocky paths, narrow trails, and the famous motocross track, testing participants with obstacles like the Atlas Carry, Rope Climb, Fire Jump, and Spear Throw. The event atmosphere is energetic and supportive, culminating in a festival party with music and celebration. It’s ideal for first-timers and seasoned racers alike. Visit the organization's website for the most recent information.

The Big Bear Spartan Trifecta Weekend, held at Big Bear Mountain Resort in California, is a challenging obstacle course event set at a high altitude of 8,200 feet. Participants face steep climbs and thrilling descents over rugged terrain, making it one of North America's toughest Spartan courses. The weekend features three race distances: the 5K Sprint with 20 obstacles, the 10K Super with 25 obstacles, and the 21K Beast with 30 obstacles, plus a kids' race. Completing all three races earns participants the coveted Trifecta medal and qualification for the Trifecta World Championship. The event offers a vibrant atmosphere with music, beer gardens, and a supportive community. Visit the organization's website for the most recent information.