Mamba 100 - Memphis, TN

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.