Fox Valley Winter Challenge Trail Series 10K

Fox Valley Winter Challenge Trail Series 10K is run in Campton Hills, Illinois, on March 14, 2027. It is the 10K leg of a three-race winter trail series held at scenic Illinois locations, and it starts at 10:00 AM. Every finisher receives a medal and exclusive winter gear, with additional awards for runners who complete all three races and earn the combined medal.

You can enter this one on its own or as part of the series, which is what makes it accessible: the format is designed for experienced trail runners and beginners alike. On dirt in March, expect soft, uneven footing and run by effort rather than pace, since trail mile splits mean little. Shoes with real grip and a willingness to walk the odd steep section will serve you better than chasing a road-style time.