The Miami 100, set for September 26, 2026, in vibrant Miami, FL, offers an unparalleled urban ultra-marathon experience across 100 miles of the city's most iconic neighborhoods. This isn't your typical trail race; prepare to navigate an open-road course that winds through the lively streets of Wynwood, the scenic expanse of Miami Beach, the historic charm of Calle Ocho, and the vibrant districts of Coconut Grove and Brickell. The terrain is largely flat with several bridges providing spectacular views, all on paved or very smooth surfaces. What truly sets the Miami 100 apart is its adventurous format: the course map is not revealed in advance. Instead, runners receive directional cards with step-by-step instructions at a series of checkpoints spaced approximately every 15-30 miles, transforming the race into a dynamic journey of discovery through the city.

This challenging 100-mile event demands complete runner self-sufficiency, as there are no traditional aid stations. Instead, participants rely 100% on their dedicated crew for all fueling, hydration, and support needs, a mandatory requirement for first-time Miami 100 milers. While ice water is available at limited checkpoints, having a well-prepared crew is paramount, especially given typical race day conditions with highs around 87°F and lows around 78°F, alongside a 25% chance of precipitation. Runners consistently emphasize the critical role of a supportive crew in managing the heat and humidity. The race begins at 5:00 AM on Saturday, September 26th, with a generous 32-hour cutoff, concluding at Hero Martial Arts in Palmetto Bay, which also hosts all pre-race activities.

The Miami 100 is renowned for its unique blend of urban exploration and extreme endurance, making it a preferred qualifier for the Badwater 135™. Its limited field of typically 50-60 runners fosters a close-knit yet competitive atmosphere. For those seeking an even greater test, the Miami 130 Challenge invites runners to tackle an additional 30 miles immediately after completing the 100-mile course. This race promises not just a physical challenge, but an unforgettable adventure through the heart and soul of Miami.