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Underground Circus 100

Jul 4, 2026
Kennesaw, GA
24HR100M50M
Typical Weather
Kennesaw, GA · Jul 4
90°
High
68°
Low
16%
Precip

Based on data from station USC00092485 (8 mi away)

About This Race

Embark on an unforgettable ultrarunning journey at the Underground Circus 100, set against the scenic backdrop of Kennesaw, GA, on July 4, 2026. This unique event offers challenging distances of 24HR, 100M, and 50M, all designed with a "no DNF" philosophy, allowing runners the flexibility to adjust their distance mid-race. The course navigates the beautiful Kennesaw Mountain Trail, presenting a diverse terrain of mixed trail with rocks and roots, gravel roads, and sections of relatively flat asphalt flanked by a runnable grass trail. As you push your limits, you'll be treated to picturesque views, including 18th-century homes and historic battle sites, with the promise of breathtaking sunrises and sunsets for those tackling the longer formats.

The Underground Circus 100 is celebrated for its supportive, small-town atmosphere, making it an ideal choice for first-time ultrarunners and seasoned veterans alike. Participants will find fully stocked aid stations providing cups, sports drinks, and a variety of snacks, with all-night soup and pizza to fuel the longer endeavors. An indoor bathroom is conveniently located at a nearby Texaco, and essential amenities like a Publix and fast-food options are just an 8-mile out-and-back away. With typical race day conditions seeing highs around 90F and lows around 68F, and a 16% chance of precipitation, runners should prepare for a warm, humid summer challenge.

Beyond the personal challenge, the Underground Circus 100 stands out for its philanthropic spirit; all proceeds are dedicated to assisting the homeless, and participants are encouraged to contribute donations such as socks, underwear, toothpaste, and toothbrushes. The race director is actively present on the course, ensuring every runner receives encouragement and assistance. Finishers of the 100-mile race earn a customized brass buckle, while 50M and shorter distances receive finisher medals, with certificates for all participants, celebrating every achievement in this truly unique and community-focused ultra.