Trail Running calendar near Defiance 2025-2026

The Thunder Chicken 100K Stage Races is an exciting three-day trail running event held at Camp Wyman in Eureka, Missouri. Scheduled for May 2-4, 2025, participants can choose to compete in various distances, including a 21-mile, 26-mile, and a 25K race, or tackle all three stages. The courses featur..

The Berryman 50 Mile and Marathon Trail Races, taking place on May 17, 2025, in the scenic Mark Twain National Forest, offers runners a challenging experience on a historic 26.4-mile single-track loop. Participants can choose between a 50-mile race or a marathon, with aid stations located every 5 to..

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, organized by Terrain Trail Runners, is an exciting overnight trail running event taking place at Indian Camp Creek Park in Foristell, MO. Scheduled for June 21-22, 2025, participants can choose from a 10K, 6-hour, or 9-hour timed ultra race, all set on a scenic loo..

Get Your Butt Kicked @ Route 66 is a unique running event held at Route 66 State Park in Eureka, MO, featuring 3-hour and 6-hour timed race options. The course consists of a 2.425-mile loop through scenic wooded areas, designed for both novice and experienced ultra runners. Participants must be prep..

The 3 Legged Monster Race is an exciting relay event taking place on August 16, 2025, along the scenic Ozark Trail in Missouri. Teams of two will compete in three distinct legs: trail running, mountain biking, and paddling. Participants will navigate through the beautiful landscapes of the Mark Twai..

The Corps of Discovery Trail Races, organized by the St. Louis Track Club, will take place in the scenic Weldon Spring Conservation Area. Scheduled for August 30, 2025, the event features three race options: a half marathon, an 8-mile race, and a 5-mile race.The courses will showcase the beautiful t..

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..

The Devil's Toll Race is a challenging 13-mile event set in the scenic Ozark Trail of Missouri, featuring rugged terrain and breathtaking views. Participants can choose to run or hike solo or in teams, navigating from Taum Sauk Mountain to Johnson Shut-ins State Park. The course includes significant..

The DeClue Loops Trail Race is a premier running event held at Greensfelder Park in Wildwood, Missouri. Participants can choose from various distances, including an 8-mile loop, 16 miles, a full marathon, or a 50k, all set on the scenic DeClue Trail. The race features awards for the top male and fem..

The Lion King Backyard Ultra is an ultramarathon event taking place in Rolla, MO, featuring a unique format where participants run a 4.167-mile loop every hour until only one runner remains. This race, named after the Lions Club Park, combines beautiful trails and a supportive community atmosphere...

The Minnie Ha Ha 6 & 12 Hour Run is an annual timed race held at Minnie Ha Ha Park in St. Louis, Missouri. Participants can choose between a 6-hour or 12-hour race on a USATF-certified, 1.17-mile paved loop course that offers scenic views of the Meramec River and surrounding fall foliage.The event f..

The Babler Bongo 15K Trail Race, taking place at Dr. Edmund A. Babler Memorial Park in Wildwood, MO, is an exciting trail running event scheduled for October 25, 2025.This race features a 15K trail run and a new 15K RUCK option, where participants carry a weighted backpack. The course includes a loo..

The Ozark Trail 100 Mile Endurance Run is a premier ultra-running event held in the scenic Mark Twain National Forest, showcasing the stunning autumn landscapes of Missouri. Celebrating its 17th year, this challenging race covers 101 miles of technical single-track trails, featuring approximately 12..

The Wild in the Woods Trail Race is part of the Big River Trail Series, featuring 5 and 10-mile race options. Scheduled for December 6, 2025, at Broemmelsiek Park, this event offers participants a chance to enjoy scenic trails while competing for points in the series. Post-race festivities include a..

The Shippey Endurance Runs is a challenging ultra marathon event held in Missouri, featuring various distances including 100 miles, 100 kilometers, a Night 40 miler, and a 20 miler, along with a 100-mile relay option. Set in the scenic Beaumont Scout Reservation, the event offers a unique opportunit..

The Castlewood Cup is an annual trail running event that will take place for the 18th time on February 7, 2026, at Castlewood State Park. Participants will tackle a challenging 15km course featuring a variety of terrains, including uphills, downhills, and switchbacks. The event not only tests runner..