
All-Out Kooky-Spooky
Golden, CO • November 2, 2025
From the base of Table Mountain and Colorado's spectacular foothills, All-Out Multicourse presents our 14th annual Kooky-Spooky from Jefferson County's NAAC Stadium… easily accessible from several nearby highways. 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! Of course, we'll still be celebrating the Halloween spirit so re-use your Halloween costume (or take advantage of those post-Halloween sales) for our official costume contest. And especially revel in the extra hour of sleep you get as Nov. 2 is the end of daylight savings time!
Other Races by All-Out Multicourse

All-Out Summer Breeze
June 7, 2025
Arvada, CO

All-Out Dog Days
July 12, 2025
Westminster, CO

All-Out Runapalooza
August 2, 2025
Arvada, CO

All-Out Fallfest
September 13, 2025
Westminster, CO

All-Out Fa La La
December 6, 2025
Westminster, CO

All-Out Polar Prowl
January 10, 2026
Arvada, CO

All-Out Mardi Crawl
February 22, 2026
Arvada, CO

All-Out Spring Fever
March 22, 2026
Golden, CO

All-Out Beat the Heat
April 18, 2026
Westminster, CO