Fox Valley Winter Challenge Trail Series 10K

Get ready for the epic finale of the 2026 Winter Challenge Trail Series with the grand 10K at Hickory Knolls Discovery Center in St. Charles on March 22! This is your chance to conquer diverse terrain, master the art of pacing on long stretches, and tackle those sneaky climbs. Whatever the trail throws at you – slick, muddy, or fast – you're in for an exhilarating push to the finish. Every runner will be rewarded with a badass finisher medal and exclusive winter swag. And for the warriors who've blazed through the entire series, get ready to piece together your medal set and flaunt that well-earned bonus gear. It doesn't matter if you're gunning for a record or just here to cross the finish line; this 10K is where you prove your mettle and celebrate the thrill of the challenge!