Get ready for an exhilarating day of adventure at the Trail Mix Off-Road Duathlon, hosted by the Rockford Area Mountain Bike Alliance! Mark your calendars for Sunday, October 4, 2026, as this exciting event takes place at the stunning Atwood Park trail system in Rockford, Winnebago. Participants can challenge themselves on a thrilling run-bike-run course that showcases the beautiful singletrack trails of the area, with options for both a full duathlon and a shorter Half Mix distance.

Not a duathlete? No problem! The Trail Mix Off-Road Duathlon also features 10- and 20-mile mountain bike races, making it the perfect event for riders of all levels. This year, participants can compete for Fastest Lap prizes on both the running and biking segments, adding an extra layer of excitement to the competition. Best of all, 100% of the proceeds from this fantastic event go directly towards trail building and improvements at Rock Cut State Park and Atwood Park, ensuring that the local outdoor community continues to thrive. Join us for a day of fun, fitness, and community support at the Trail Mix Off-Road Duathlon!