Trail Running calendar near Somers 2026-2027

A looped ultrarunning event at Deer Grove Forest Preserve west in Palatine, IL offering 50-mile, 50K, 25K and 5.5-mile races on mostly wide, nontechnical trails. The course uses 5.5-mile laps with one aid station at the start and finish.

A flat out and back half marathon and 10K on the limestone Great Western Trail, organized by Fox River Trail Runners, with part of registration fees donated to 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.

The Frontline OCR will take place in Byron on Saturday 22 May 2027. You can run between 5 and 10 kilometers.

A timed long distance walking event at Alpine Valley, Elkhorn, WI on October 9, 2027 offering 7, 14, 21, and 28 mile loops, optional weighted vests, and a 10 hour finish limit.