All-Out Kooky-Spooky

Sun, Nov 1, 2026, 9:00 AM MST

Location: Golden, CO; 19500 W 64th Pkwy, 80403
Type: RUN

Vibe analysis coming soon

Course feel, difficulty, and community fit are being added to this listing. Check back, and always confirm details on the official registration page.

Distances & registration

6 options

Registration for all distances is through the official signup link above.

5K
Sun, Nov 1, 9:45 AM MST · From $32.80
Opens Nov 1, 2025, 8:00 PM MDT · Closes May 1, 2026, 7:59 PM MDT
5K
Sun, Nov 1, 9:00 AM MST · From $27.50
Opens Nov 1, 2025, 8:00 PM MDT · Closes May 1, 2026, 7:59 PM MDT
10K
Sun, Nov 1, 9:30 AM MST · From $43.40
Opens Nov 1, 2025, 8:00 PM MDT · Closes May 1, 2026, 7:59 PM MDT

+ 3 more options

10K
Sun, Nov 1, 9:00 AM MST · From $32.80
Opens Nov 1, 2025, 8:00 PM MDT · Closes May 1, 2026, 7:59 PM MDT
13.1 Miles
Sun, Nov 1, 9:00 AM MST · From $64.60
Opens Nov 1, 2025, 8:00 PM MDT · Closes May 1, 2026, 7:59 PM MDT
13.1 Miles
Sun, Nov 1, 9:00 AM MST · From $43.40
Opens Nov 1, 2025, 8:00 PM MDT · Closes May 1, 2026, 7:59 PM MDT

Vibe Check

Push Potential

long distance + altitude

High altitude

Based on terrain, weather, and distance data.

The course

From the organizer

From the base of Table Mountain and Colorado's spectacular foothills, All-Out Multicourse presents our 15th 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 for our official costume contest. And especially revel in the extra hour of sleep you get as Nov. 1 is the end of daylight savings time!

Also in this area

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Lower-difficulty races in the same state.