Earth Day 50k

The Kishwauketoe 5K Cross Country Run takes place in Williams Bay, Wisconsin, starting at the KNC entrance on Highway 67. The course features scenic grass trails through hills, woods, and prairie, offering a natural and challenging terrain for runners. The event includes a 5K run/walk and a children..

The Summer Trail Classic is a trail running event held at Paul Douglas Forest Preserve in Hoffman Estates, Illinois. It offers three race distances: approximately 4 miles, 9.5 miles, and 13 miles, featuring twisting single-track trails that provide a true trail running experience. The event is part..

The Naperville Trails Half Marathon & 10K is an annual running event held in Wheaton, Illinois, set for September 6, 2025. Participants can choose between a USATF-certified half marathon or 10K race, both featuring a flat and fast course that winds through the scenic Danada Forest Preserve on crushe..

The Fall Trail Classic 2.0 is a trail running event held at Marengo Ridge Conservation Area in Marengo, Illinois. It features two races on the same day: a 4-mile run through oak and hickory woodlands, small stream bridges, and restored prairie trails, and a 7-mile run that includes the 4-mile loop p..

Soul Crusher is a challenging trail running event held in Crystal Lake, Illinois, offering 5-mile and 10-mile distances. The course, designed by Jeff Lenard, is known as the toughest 5-mile loop in the Midwest, with runners able to complete one or two loops depending on their endurance. The race sta..

The Fast Track Cross Country Open is a 3-mile cross country running event held in Schaumburg, Illinois, on the MacNider course near Hoover Elementary School. Open to all ages and abilities, the event features separate women's and men's races. Participants can enjoy running on grass and have the opti..