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Mamba 100 - Memphis, TN

Memphis, United States • 7-8 Nov 2025

The Mamba 100 in Memphis, TN, is a premier ultrarunning event featuring distances of 100 miles, 100K, 50K, and 25K. The race takes place on a fast, scenic 14.35-mile loop along the Wolf River, primarily on single-track trails with low elevation gain, making it ideal for speed and personal records. The 100-mile race is a Western States Qualifier with a 34-hour cutoff.

The event offers a lively, supportive atmosphere with crew-friendly aid stations, music, food, and a festive vibe at the start/finish area. Participants receive custom swag, and top finishers earn awards. The race emphasizes community, endurance, and memorable experiences. Visit the organization's website for the most recent information.

United States Tennessee Memphis

Race information

Website Registration
100 mi
100 Miler
100 km
100k
50 km
50k
25 km
25k
Visit the organization's website for the most recent information.
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