Fox Valley Winter Challenge Trail Series

St. Charles, United States • 21 Feb 2026

Event overview

The Fox Valley Winter Challenge Trail Series 8K takes place on February 21, 2026, at Oakhurst Forest Preserve in Aurora, Illinois (1680 5th Ave). The race is the middle event in a three-race winter trail series that also includes the 5K and 10K. Entry for the 8K is listed at $40, with price increases noted after December 31, 2025. All finishers receive a medal. Series incentives: one race earns a winter hat; two races add bib snaps; completing all three races adds a hooded zip sweatshirt plus the other items.

Distances

  • 5K
  • 8K
  • 10K

Course and race-day logistics

The event is a trail race over mixed terrain, including grass, gravel, dirt, and pavement. February conditions may include snow, ice, or mud. The course begins with an incline up a steep sledding hill. The start and finish are located in the parking lot by the covered shelter. Parking at Oakhurst is limited and free, with overflow parking across 5th Ave at St. Athanadios Greek Orthodox Church. There is no formal gear check; items may be left in the covered shelter at the owner’s risk. Restroom facilities are available near the start/finish and in the adjacent parking lot. There are no water stations on course; bottled water and snacks will be provided at the finish. Headphones are allowed; dogs are not permitted. Packet pickup details are still being finalized, and race-day registration is available on the morning of the event. Visit the organization's website for the most recent information.

Race information

8 km
Visit the organization's website for the most recent information.
Trail runs nearby

Run the Frozen Tundra IPA 5K along the Des Plaines River Trail, then warm up at Half Day Brewing with music, beer, hot toddies and food. Limited to 300 runners, entries include shirts, medals and a lively post race party.

The Saw Wee Kee - Winter Trail Run will take place in Yorkville on Saturday 28 February 2026.

Early-season trail races at The Forge in Lemont include a half marathon and a quarter marathon over wooded single and double track MTB trails and some gravel. Courses feature varied terrain, technical sections, and a common start and finish..

Wrap up winter on scenic mixed trails at the Fox Valley Winter Challenge 10K in St. Charles on March 22, 2026. Expect varied footing, a finisher medal and cozy winter hat, plus bundle pricing if you tackled other series races.