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From the base of Table Mountain and Colorado’s spectacular foothills, All-Out Multisport presents our 2nd annual Kooky-Spooky from Jefferson County’s NAAC Stadium, including an all-new half marathon! Easily accessible from Hwy 93, 6th Ave, Hwy 58 or I-70, these 5K, 10K & Half Marathon courses will hug the shores of Arvada’s Blunn Reservoir via Ralston Creek Trail.
When you race with All-Out Multisport, quite simply… you get more! We offer more course markings, aid stations & porta-poos; more medical & nutritional support; more prizes & awards; more food, SWAG & fun than the other guys. With your safety as our Certified Race Director’s top priority, and with more than 11 years experience on staff, you can rely on us to provide an event that is second to none! Whether you’re in it to win it, training for a longer distance or just trying to stay fit… one race with us and you’ll be an All-Out runnerd for life!
Just days before Halloween… Kooky or Spooky costumes welcome!
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As a part of our first of its kind Endless Series, race the same distance at both Kooky-Spooky and Spring Fever to measure your progress on identical 5K, 10K or Half Marathon courses. Prizes may be awarded to all who beat their time and, oh… did we mention you receive discounted entry fees? $5 off when you use coupon code DscES and register for back-to-back events! Click here for more information. |
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FREE RACE PICS!
That’s right… print’em, post ‘em & share ‘em all day long cuz unlimited downloads are on us!
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Dedicated in support of the Leukemia & Lymphoma Society

LLS is the world’s largest voluntary health agency committed to research that will cure blood cancers. Also providing free information and support services to improve the quality of life for patients and their families, the gift you make when you register will make a difference!
| 5K Course | Interactive Map | Printable PDF |
5K athletes will depart the east end of the NAAC parking lot then utilize the sidewalk on the south side of W 64th Pkwy to reach the underpass and Ralston Creek Trail. Running northwest, with Blunn Reservoir on their right, athletes will have access to 1 aid station (named Aid 5 for event purposes) at the turnaround, then return the way they came.
| 10K Course | Interactive Map | Printable PDF |
10K athletes will depart the east end of the NAAC parking lot then utilize the sidewalk on the south side of W 64th Pkwy to reach the east underpass and the path that runs adjacent to the west side of Virgil Wy. Athletes will continue north until just past Tucker Lake, then west and south, following Ralston Creek Trail around Blunn Reservoir utilizing the west underpass to return they way they came into NAAC and the finish line. Aid stations will be positioned at or near the 1.5, 3 and 4.5 mile marks.
| Half Marathon Course | Interactive Map | Printable PDF |
Half Marathon Athletes will depart the east end of the NAAC parking lot then utilize the sidewalk on the south side of W 64th Pkwy to reach the 2nd underpass and the path that runs adjacent to the west side of Virgil Wy. Turning right to go east on Ralston Creek Trail, half athletes will complete a 7 mile out & back dogleg before rejoining the counter clockwise Blunn Reservoir loop. Utilizing the underpass at the reservoir entrance, athletes will make their way back up onto the 64th sidewalk then return they way they came to the finish line. Five aid stations will offer 7 opportunities for athletes to fuel up every 1.5 to 2 miles.
| Site Map | Directions | Printable PDF |
Jefferson County’s NAAC Stadium: 19500 W 64th Pkwy, Golden, CO 80403

| Early (thru 8/26) | Advance (thru 10/12) | Late* (thru 10/24) | Race Day* | |
| 5K | $35 | $40 | $45* | $50* |
| 10K | $40 | $45 | $50* | $55* |
| Half | $55 | $60 | $65* | $70* |
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*Because goodies must be ordered far enough in advance to have them printed & shipped, late and race day entrants will receive SWAG on a first come, first-served basis. If the shirt size you prefer is unavailable when you register, please select your next best size to be sure you get one, then stop by the packet pick-up area after you race to see if a swap is possible. |
| Don’t forget… register for both Kooky-Spooky and Spring Fever to receive $5 off! |
Not racing this one? You can still participate as a volunteer! Athletes on a rest day… friends… family… there’s no experience necessary, and without you… these events wouldn’t be possible.
From parking to packet pick-up, and from course marshals to crowd control, there are a variety of ways you can help. Space is limited, so please include the following information in an email to events@alloutmultisport.com today!
- Event Name
- Your Name (first and last)
- Your Gender
- Your Age
- Your Email Address
- Your Daytime Phone Number
- Your Emergency Contact Name and Phone Number
- Your T-Shirt Size (Cuz yes… you get all that great SWAG too!)
| Wednesday, 1/23 | 11:59p | Early Pricing Ends |
| Saturday, 3/9 | 11:59p | Advance Pricing Ends |
| Thursday, 3/21 | 11:59p | Late Pricing Ends & Online Registration Closes |
| Saturday, 3/23 | 7:00a | Volunteer Check-In Begins |
| 8:00a | Packet Pick-Up & Race Day Registration Begin | |
| 8:45a | Race Day Registration Ends | |
| 9:00a | Half Marathon Start | |
| 9:05a | 5K Start | |
| 9:10a | 10K Start | |
| 9:45a | 5K Awards & Raffle | |
| 10:45a | 10K Awards & Raffle | |
| 12:00p | Half Marathon Awards & Raffle |
Directions – Jefferson County’s NAAC stadium is located at 19500 W 64th Pkwy in Golden, CO. Click here for a map or to get directions.
Parking – Athletes & spectators will be required to park in the westernmost lot, as shown on the site map above, keeping the lot most accessible for entry & exit available to volunteers who will be heading out on the course. Please follow all parking signs & staff direction on race day.
Participants – Competitive runners, joggers, walkers, wheelchairs & strollers… all are welcome, but please follow all staff direction for start line positioning on race day. (If you will be a wheelchair participant, please email events@alloutmultisport.com prior to registering, as there is one small, unpaved section of the course you should consider.)
Post-Race Meal – Although the post-race meal is FREE for all athletes… it is for athletes and volunteers only. Spectators should plan to bring food & beverage accordingly.
Raffle – You DO NOT want to miss the award ceremony & raffle! All athletes will be eligible to win!
Volunteers – Athletes taking a rest day, friends, family… volunteers make it all happen. There is no experience necessary and all will receive the same great SWAG as the athletes.
Please click here to review other General Event Information and AMP Company Policies.













