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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, designed for speed and fun. The event offers a vibrant, party-like atmosphere with music, food, and enthusiastic support from spectators and crew at the Start/Finish area.

It is a Western States Qualifier race with strict time limits for each distance. Runners enjoy well-stocked aid stations, crew-friendly setups, and the option of pacers for longer distances. The race also provides quality swag and awards for top finishers. 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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