Trail Running calendar near Byron 2025-2026

Explore rugged, scenic trails along the Mississippi at the Mines of Spain 100 in Dubuque on October 16, 2026. Choose 100 mile or 100K on a roughly 20 mile loop through prairies, hardwood forests and technical climbs.

Explore seven walker friendly trail races across Waukesha County and Wisconsin state parks from April to October 2026. Choose 5K 10K half marathon or ruck distances, bring reusable hydration, and chase series points into a final championshi..

Join the Jaimie Cox Memorial Run in Roscoe IL on October 17, 2026 for a family friendly 5K or 2 mile walk along the scenic Stone Bridge Trail. Run for a cause as proceeds support the Jaimie Cox Memorial Scholarship.

Fancy Nonsense is a looped trail race at Red Gate Woods near Willow Springs and Lemont, Illinois, with 50K, 25K and 5 mile options on runnable singletrack. Expect repeated 5.5 mile loops, plentiful aid and classic ultra snacks.

The Forge Trail Run Festival in Lemont Illinois offers 10K to 60K on scenic single and double track trails around the quarries and the I&M Canal. Field capped at 400 with lap courses that call for trail shoes and self supported hydration.