Mamba 100

Prepare to push your limits and experience the vibrant ultrarunning scene at the Mamba 100, featuring challenging 50K and 25K distances on November 7, 2026, in Memphis, TN. This acclaimed event unfolds on the fast and forgiving Wolf River Trails, known for their exceptionally flat and smooth single-track. Runners can expect typical race day conditions with comfortable highs around 66°F and lows around 44°F, alongside a low 14% chance of precipitation, creating ideal running weather.

The Mamba 100 course is celebrated for its low elevation gain, making it an excellent opportunity for personal records or a strong first ultra-marathon experience. Each loop, approximately 14 miles, winds along the scenic Wolf River, offering picturesque views with minimal technical challenges—expect mostly dirt trails with very few rocks and only scattered roots. Runners can comfortably wear either road or trail shoes, as gaiters are generally unnecessary.

What truly sets the Mamba 100 apart is its festive atmosphere and unparalleled runner support. Located at the Wolf River Refuge Trailhead, the start/finish area transforms into a lively hub with music, food, and enthusiastic volunteers cheering on participants after each loop. Aid stations are strategically placed and fully stocked with water, electrolyte drinks, gels, and snacks, though remember to bring your own hydration vessel as it's a cupless race. Hailed as an "exceptionally run event" with a highly praised race director, the Mamba 100 provides a memorable journey for every athlete.