All-Out Spring Fever 5K, 10K, & Half Marathon - Golden, Colorado - Running

The All-Out Spring Fever 5K, 10K, & Half Marathon is a Running race in Golden, Colorado consisting of a 5K and 10K and Half Marathon.

From the base of Table Mountain and Colorado's spectacular foothills, All-Out Multicourse presents our 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 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!