Tough Mudder - Los Angeles

The Big Bear Spartan Trifecta Weekend, held at Big Bear Mountain Resort in California, is a challenging obstacle course event featuring significant elevation changes up to 8,200 feet. Participants face steep climbs and thrilling descents totaling over 1,200 feet, making it a demanding race for the calves. The weekend includes three main race distances: the Sprint (5K with 20 obstacles), the Super (10K with 25 obstacles), and the Beast (21K with 30 obstacles), plus a kids' race. The event offers a competitive atmosphere with Elite and Age Group races, alongside local culture, food, and entertainment, providing a memorable experience for athletes and spectators alike. Visit the organization's website for the most recent information.

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.

Tough Mudder Big Bear, held at Bear Mountain in Big Bear Lake, California, is a challenging obstacle course event featuring customized 5K and 10K courses with 12+ and 20 obstacles respectively. The event emphasizes teamwork and offers epic mountain views, a secret obstacle menu, and exclusive co-branded swag. Participants earn unique finisher medals, shirts, and headbands, plus a celebratory Double-Double® meal from In-N-Out Burger at the Mudder Village Festival. Proceeds support the Slave 2 Nothing® Foundation, combating substance abuse and human trafficking. The event also offers spectator passes, VIP experiences, group packages, and volunteer opportunities, creating a vibrant and supportive atmosphere for all. Visit the organization's website for the most recent information.

The Temecula Spartan Event Weekend, held at Lake Elsinore Raceway in California from September 26-28, 2025, offers a variety of obstacle course races set against scenic lakeside views. Participants can challenge themselves in the Sprint 5K with 20 obstacles, the Super 10K with 25 obstacles, or enjoy a Kids Race. Additional events include Hurricane Heat endurance challenges lasting 4, 12, or 24 hours. The course features rugged terrain, open trails, and challenging obstacles, providing an exciting adventure for both beginners and seasoned athletes. The event promotes team racing, family fun, and offers exclusive hotel discounts for participants. Visit the organization's website for the most recent information.

Ruff Run California 2025 is an exciting annual obstacle run taking place in Phelan, California, designed for participants and their dogs. The event features over 20 obstacles that challenge both physical endurance and teamwork between participants and their pups. The course includes a 4ishK run filled with mud, water, and strategic challenges, making it a fun and engaging experience. This year, participants will receive custom jerseys to commemorate the event. The day will also include an after-party with music, games, and vendors, set against the beautiful backdrop of the high desert at 4200 feet above sea level. 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 Sprint (5K, 20 obstacles), Super (10K, 25 obstacles), Beast (21K, 30 obstacles), and 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. Located about 40 minutes south of San Bernardino, this event is ideal for individuals and teams seeking a physical and mental challenge in a vibrant, outdoor atmosphere. The weekend also encourages team participation and offers discounts for service members. Visit the organization's website for the most recent information.