Trail Running Calendar United States 2026-2027

The The Longest Night 50mi will take place in Greenville from Saturday 19 December 2026 to Sunday 20 December 2026. You can run between 10 and 50 miles.

Tackle the Summit Showdown 10 Mile or 5K at Little Mulberry Park in Dacula on Saturday, December 19, 2026, a challenging course with big climbs and great views. Winners get Yonah Mountain Vertical Race entries and everyone gets post race pa..

Join the Frosty Forest 5K on Saturday December 19, 2026 in Roosevelt Forest, Stratford CT for a festive off road trail run through snowy woods. Costumes welcome, awards for top finishers, and a commemorative finisher item for all.

Celebrate the season at Gingerbread Lane 5K and 10K in San Antonio with a lively DJ, post race cookies and milk, shirts and finisher medals for all. Choose from kids dash, 1 mile, 5K, 10K or virtual runs and join the costume contest.

Hit the trails in San Diego on December 20, 2026 for the Dirty December Trail Run, featuring marathon, half marathon, 10K and a new Hill Climb six hour challenge up and down Cardiac Hill. Wear a costume for solo or team awards and vie for K..

Kick off the new year at the IRON HORSE Endurance Run in Paris Texas, with 200 mile, 100 mile, 100K and a 100K ruck along the scenic Northeast Texas Trail. Fully supported course with custom finisher plaque and rugged trail vibes.

Take on the 68 mile Backbone Trail in the Santa Monica Mountains on January 16, 2027, with 13,600 feet of climbing and epic coastal views. Field capped at 200; solo entries require a prior 50 mile finish, relays of two to four welcome.