Mamba 100

Western States Qualifier Race Mamba 100 miler is a Western States Qualifying Race. Participants must finish within the 34 hour time limit to qualify. Mamba 100 Mark your calendar for the epic return of the Mamba 100! Whether you're aiming for a PR (personal record) on your 100 miler, running your first-ever ultra, or chasing that elusive sub-24-hour finish, this course is built for speed, fun, and unforgettable memories. Why Run Mamba 100? This is more than a race—it’s a celebration of endurance, community, and personal achievement. With its fast course, supportive environment, and electric atmosphere, the Mamba 100 guarantees a memorable ultrarunning experience. Sign up now and experience the thrill, the camaraderie, and the achievement waiting for you at the Mamba 100! Finish Times (to earn your buckle or medal): 100 Miler – 34 hours 100k – 22 hours 50k – 10 hours 25k – 8 hours Course Details: 14.35-mile loop along the scenic Wolf River, consisting of mostly single-track trails with low elevation gain. Loops per distance: - 100 Miler – 7 loops - 100k – 4 loops (plus one shorter starter loop) - 50k – 2 loops - 25k – 1 loop