Welcome to Ultimate Endurance Race Series! We’re thrilled to have you here as we gear up for our two signature events each year: the Timp Trail Marathon and Half Marathon, and the Elk Run Half Marathon and 10K. Designed for those who thrive on pushing their limits, our races showcase stunning landscapes and demanding courses that will test your endurance and skill. 

Join a community of dedicated runners as you embrace the thrill of competition and the satisfaction of conquering new challenges. Get ready to push yourself to new heights—let’s hit the trails together!