Castlewood Cup

The Thunder Chicken 100K Stage Races is a challenging three-day trail running event held in Eureka, Missouri, at Camp Wyman. Runners can participate in individual races or the full stage race, which includes a 21-mile, 26-mile, and 25K course, each featuring rugged terrain, creek crossings, and scen..

The Baby Shippey will take place in High Ridge on Sunday 1 June 2025. You can run between 10 and 13 miles.

The Dark 2 Dawn Night Trail Races is an all-night trail running event held at Indian Camp Creek Park in Foristell, Missouri, on June 21-22, 2025. Organized by Terrain Trail Runners, the race offers multiple options: a 10K, a 6-hour, and a 9-hour timed ultra. Participants run on a scenic, approximate..

Get Your Butt Kicked @ Route 66 is a timed ultramarathon event held in Route 66 State Park near Eureka, Missouri. Participants can choose between 3-hour and 6-hour races, running multiple laps on a measured 2.425-mile loop through wooded terrain. The course is flat and fast, suitable for both beginn..

The Corps of Discovery Trail Races, organized by the St. Louis Track Club, are held annually in the Weldon Spring Conservation Area. The event features multiple race options, including a half marathon, 8-mile, and 5-mile races, with the 2025 edition scheduled for August 30th.The courses wind along s..

The Rockin' Rockwoods 53K and 1/2 Marathon is an annual trail running event taking place on September 13, 2025, at Greensfelder County Park in Wildwood, Missouri. Participants can choose between a challenging 53K or a 1/2 Marathon, with a new Ruck division option for the half marathon, requiring com..