The Underground Circus 100

The Underground Circus 100 is an ultramarathon event taking place on May 24, 2025, along the scenic Silver Comet Trail in Smyrna, GA. Participants can choose from various distances, including 100 miles, 50 miles, and timed events up to 48 hours. The course features a flat, fast route with beautiful wooded areas, making it ideal for both first-time ultrarunners and seasoned athletes.

The race emphasizes a supportive atmosphere, with aid stations and volunteers available throughout the event. All proceeds benefit the homeless, encouraging participants to contribute items like socks and toiletries. Awards include customized buckles for 100-mile finishers. Visit the organization's website for the most recent information.