All-Out Spring Fever 1M, 5K, 10K and Half Marathon

From the base of Table Mountain and Colorado’s spectacular foothills, All-Out Multicourse presents our 8th annual Spring Fever from Jefferson County’s NAAC Stadium… easily accessible from several nearby highways. Along with its Endless Series sidekick in October… Kooky-Spooky, these 1M, 5K, 10K & Half Marathon courses will hug the shores of Arvada’s Blunn Reservoir via the Ralston Creek Trail and will challenge the beginner and veteran athlete alike, or… gather your besties to join in on the Half Marathon Relay!