Trail Running calendar near Rockford 2026-2027

Childish Nonsense in Deer Grove Forest Preserve, Palatine IL on April 24, 2027 features looped trail races from 5.5 miles to 50 miles. One aid station at the start/finish is available every 5.5 miles and pacers are allowed for 50 milers aft..

Trail races at Donald County Park include 5 km, 15 km and a Kids One Mile Fun Run across prairie, single-track, sand and bridges. Proceeds support Friends of Donald Park for trail maintenance and repair.

Flat out and back half marathon and 10 km on the limestone Great Western Trail, hosted by Fox River Trail Runners. Registration fees and donations support three local mental health charities.

Trail marathon and 10 mile on the Sag Valley Trail at Cap Sauers Nature Preserve in Palos Hills, IL, with wide horsetrail, notable elevation gain, and staffed aid stations along the routes.