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The Underground Circus 100

Name: The Underground Circus 100
Start: 2026-07-04
End: 2026-07-04
Location: Smyrna

Smyrna, United States • 4 Jul 2026

The The Underground Circus 100 will take place in Smyrna on Saturday 4 July 2026. You can run between 6 and 24 hours. Visit the organization's website for the most recent information.

United States Georgia Smyrna

Race information

Registration Facebook

24 hr

24hr

100 mi

100 Miles

12 hr

12hr

50 mi

50 Miles

6 hr

6hr

Visit the organization's website for the most recent information.

Trail runs nearby

Sunday Jan 4

Atlanta Fat Ass 50K

Lithia Springs

25 km

50 km

Join the Atlanta Fat Ass at Sweetwater Creek State Park on Jan 4, 2026 for a members only free trail run with 50K and 25K on scenic, technical loops of roots, rocks and climbs. Finish with hot food and a festive crockpot chili contest.

Sunday Feb 1

Red Top Rumble

Cartersville

12 mi

Tackle 11.5 miles of winding trails and lake views at Red Top Mountain State Park in Cartersville, GA. This community focused trail run, hosted by GUTS, supports the park while offering moderate wooded terrain and scenic crossings.

Saturday Mar 21

Yeti 7/11 Hour Endurance Run

Lithia Springs

7 hr

11 hr

Run the 10th annual Yeti 7/11 Hour Endurance Run at Sweetwater Creek State Park, choose 7 hour or 11 hour options on a scenic 4 mile loop through trails and historic ruins. Aid is quirky convenience store style; bring a reusable cup.

Mon - Fri Mar 23-27

Canebrake 200 Miler

Atlanta

100 mi

200 mi

Canebrake is a multi day trail ultramarathon at Sweetwater Creek State Park near Atlanta, offering 100 and 200 mile looped courses on scenic trails. Staffed aid, a sleep station, hot food and pro chip timing keep runners supported.