Corps of Discovery Trail Races

The Labor Day Slay is a multi-distance running event held at Queeny Park in St. Louis, Missouri. Participants can choose from 5K, 10K, Half Marathon, or a 10K Ruck, with a shared-start format on shady, rolling Queeny Park trails.The course is fully marked, with aid stations every 3.25 miles and prof..

The Rockin' Rockwoods 53K and 1/2 Marathon is an annual trail running event held at Greensfelder County Park in Wildwood, Missouri. Featuring a challenging course on the scenic Green Rock Trail, the race includes a 53K ultra, a 1/2 marathon, and a 1/2 marathon ruck division where participants carry..

DeClue Loops Trail Race is held in Greensfelder Park, Wildwood, Missouri. The race centers on the DeClue Trail, an 8.2-mile loop that begins and ends near the Visitor’s Center, run counter-clockwise. Runners choose from four distances: 8 miles (one loop), 16 miles (two loops), a marathon (three loop..

The Minnie Ha Ha 6 & 12 Hour Run is an annual timed ultrarunning event held at Minnie Ha Ha Park in St. Louis, Missouri. The race features 6- and 12-hour options on a USATF-certified, 1.17-mile paved loop course that winds through a mostly flat, wooded park with scenic views of the Meramec River and..

The Babler Bongo 15K Trail Race and 15K RUCK take place at Dr. Edmund A. Babler Memorial State Park in Wildwood, Missouri.This event features a challenging 15K loop course connecting several trails—Dogwood, Woodbine, Hawthorn, and Equestrian—with about 1,350 feet of elevation gain. It welcomes both..

The SKIPPO Trail Race takes place at Castlewood State Park’s Special Events Area in Ballwin, Missouri. It offers multiple trail distances: 10k, Half-Marathon, 30k, plus the 10k-Half Marathon Challenge and the 40k Challenge (10k and 30k). The event spans two days (November 1–2, 2025) to accommodate g..