From the base of Table Mountain and Colorado’s spectacular foothills, All-Out Multicourse presents our 10th annual Kooky-Spooky from Jefferson County’s NAAC Stadium… easily accessible from Hwy 93, 6th Ave, Hwy 58 or I-70. Along with its Endless Series sidekick in March… Spring Fever, 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.

Register Now

WAIT… don’t register until you’ve checked out the deep
discounts & primo perks that come with our Run Amok Series!

Learn More

You can’t hardly have a Halloween event without a costume contest, right?
Dress in your ‘G’ rated Halloween best then swing by the finish aid tents before you race to enter!

Click here for Costume Contest Rules & Regulations