The Underground Circus 100

The Underground Circus 100 is an inclusive ultramarathon event taking place on the scenic Silver Comet Trail in Smyrna, GA. Participants can choose from various distances, including 100 miles, 50 miles, and shorter timed events, with a unique no DNF (Did Not Finish) policy that allows runners to switch distances during the race. The course features a flat, fast route surrounded by beautiful wooded areas, making it ideal for both first-time ultrarunners and seasoned athletes.

Aid stations are well-stocked, and all proceeds support local homeless initiatives. Participants receive awards based on their distance, including customized buckles and finisher medals. Visit the organization's website for the most recent information.