Miami 100

The Miami 100 is an urban ultramarathon event taking place on September 27, 2025, in Miami, Florida. Participants can choose to run a 100-mile race, a 50k, or take on the Miami 125 Challenge, which adds an additional 25 miles to the 100-mile course. Runners will navigate through Miami's vibrant neighborhoods, relying on their crews for support, as there are no aid stations—only checkpoints.

The event emphasizes following directional cards to reach checkpoints, adding a unique challenge. The race is limited to 60 runners for the 100-mile and 50 runners for the 50k, with a focus on safety and community. Visit the organization's website for the most recent information.