Minnie Ha Ha 3, 6 & 12 Hour Run St. Louis, MO   Oct 17, 2026

The annual Minnie Ha Ha Endurance Runs offers three options — a 12 hour, 6 hour and 3 hour. This timed race takes place at Minnie Ha Ha Park, located off Old Gravois Road/Highway 270 near Fenton, MO. The paved-loop course is USATF-certified, and measures 1.17 miles and winds through the mostly flat wooded park with great views of the Meramec River and fall foliage.

The start/finish area is located at the Shelter “E.” There is adequate parking throughout the park with a playground and restrooms in close proximity to the shelter. The aid station is adjacent to the start/finish and will be stocked with plenty of fluids and foods you would expect at an ultra event. There will be cool swag for all participants!

This race is brought to you by the St. Louis Ultrarunners Group (SLUGs).