Colorado Cold Rush

Experience the exhilarating Colorado Cold Rush on Sunday, January 18, 2026, in the scenic city of Louisville, Boulder! This winter race offers a choice between a 5k or 10k distance, showcasing the breathtaking Colorado landscape. Starting at the picturesque Coal Creek Golf Course, runners will explore charming neighborhoods, glide past fairways, and meander by serene ponds and open spaces. Whether you encounter bright sunshine and mild temperatures or a magical winter wonderland with snowflakes, the Colorado Cold Rush guarantees an unforgettable adventure. Embrace the chilly challenge with friends and family as you celebrate the spirit of winter running in Colorado!