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From the base of Table Mountain and Colorado’s spectacular foothills, All-Out Multicourse presents our 5th annual Kooky-Spooky!  Easily accessible from surrounding highways, these 5K, 10K & Half Marathon courses will hug the shores of Arvada’s Blunn Reservoir via Ralston Creek Trail and will challenge the beginner and veteran alike!  Just days before Halloween… Kooky or Spooky costumes welcome!

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Why go All-Out? You get more!
(Hover over these special feature icons for deets or click to be taken directly to the full list of features.)

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♦ RRCA Certified Race Director- Organization you can count on!
Our Certified Director and more than 20 years experience on staff mean your event will run smoothly. (Ha! No pun intended.)
♦ Early AND Race Day Packet Pick-Up- For those who like to prep in advance!
Sure, picking up early gets you another chance to win a prize, but no worries if you wait until race day… we make it quick & easy.
♦ Tech Shirts- No cotton allowed!
Long-sleeved, super comfy, moisture wicking & gender specific.
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♦ Finisher Medals- Yup, for you 5K’ers too!
Custom molded and distance specific for ALL finishers.
♦ Even More SWAG- Something AWESOME!
We haven’t picked it out yet, but it won’t be that same-old / plain-old stuff you get at other events, that’s for sure!
♦ Souvenir Race Bibs- With pull tags for your convenience!
Yet another keepsake to remember your day, plus your meal & prize tickets are right there at your finger tips.
♦ FREE Race Pics- Unlimited downloads are on us!
Professional photographers at the finish line AND on course… enjoy!
♦ Text Results & Placements- Individually sent to all who opt in!
Just provide your mobile number with your entry, then text the keyword ALLOUT to 550055 from that mobile device. Yup… it’s that easy!
♦ Gear Check- No trips back to the car for our athletes… no sir-ee!
Leave it with us… we’ll keep an eye on it for you.
♦ Porta-Poos-A-Plenty- 3 Units for 500 people? What, are you crazy?
Ever had to run without using a restroom because the lines were too long? Ouch! We provide almost triple the facilities as other events, including indoor, flushables this time!  Thanks NAAC!!
♦ Accurately Measured, Clearly Marked Courses- Race the distance you trained for!
Not a little more and not a little less… we measure each course no fewer than 3 times before race day.
♦ Start / Finish AND On-Course Medical Support- Nothing is more important than your safety!
Here’s hopin’ those guys are really bored, but just in case… each and every volunteer you pass knows who to call for help.
♦ Tons of Aid Stations- No need to carry any extra weight!
Not only will both water & electrolytes be handed to you at the finish line, but course aid stations are an average of just 1.5 miles apart.
♦ Disposable Timing Chips- No hassle at the finish line!
And no fees if you forget to return your timing chip either… we don’t need it back.
♦ Post-Race Meal- Breakfast burritos, fruit, bagels & CHOCOLATE MILK for all!
Yup, even if you’re dead last… we’re not going anywhere until we cheer you in.
♦ Electronic Results- No more endless sheets of data to sort through!
All results scroll on easy to read computer screens in the expo area during the event and are posted online by the end of the day.
♦ 3 Deep Awards- Overall AND Divisions!
Events small enough to stay friendly and personal give you a better chance of landing on the podium!  (Oh yea!)
♦ Prizes Galore- If you’re registered, you’re entered… easy peasy! Just bring us your ticket at the start of your award ceremony and you’re in! (Psst… in most cases, everyone who sticks around for the giveaway goes home with a prize!)
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Final Endless Series Logo As a part of our first-of-its-kind Endless Series, race the same distance at back-to-back events to measure your progress on identical 5K, 10K, Half or Full Marathon courses. Prizes may be awarded to those who beat their previous time! Click here for more information.
New Virtual Race Graphic2 With about a gazillion reasons why you might not be able to join us on race day, we know you still want to race with your friends & family. Well, we’ve got your back! Space will be extremely limited, so get in early if you want to race from afar for any reason. Click here for more information.

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Special Attention: Parents of kiddos age 5 – 12
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PRKids will be available to provide an exciting race day of safe, fun games & activities for your munchkins. With an event team consisting of carefully screened, background-checked & CPR/First Aid certified child care providers…
you sweat, while they take care of the small stuff.

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Enrollment opening soon!
Click here for more information.

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!

Matching Donations- Final

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Web Section Titles- Official Lodging Sponsor

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Site Map Directions Printable PDF

Jefferson County’s NAAC Stadium: 19500 W 64th Pkwy, Golden, CO 80403

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5K Course (15% Asphalt / 83% Concrete / 2% Soft Surface) 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 twice on this out & back course.
Course Records: M 17:16 / 5:34 Pace (Wylie Mangelsdorf) – F 18:03 / 5:49 Pace (Ashley Brasovan)


10K Course (7% Asphalt / 92% Concrete / 1% Soft Surface) 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. Porta-poos will be available just before the 2 mile mark, and aid stations will be positioned at or near the 1.5, 2.2, 3.8 and 5.1 mile marks.
Course Records: M 35:58 / 5:48 Pace (Eitan Halper-Stromber) – F 39:51 / 6:26 Pace (Linnabah Snyder)


Half Marathon Course (3% Asphalt / 96% Concrete / 1% Soft Surface) 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. Porta-poos will be available near the 2, 3, 5, 6 & 8 mile marks, and 6 aid stations will offer 8 opportunities for athletes to fuel up every 1 to 1.5 miles.
Course Records: M 1:11:36 / 5:28 Pace (Ben Zywicki) – F 1:23:06 / 6:21 Pace (Wrenn Bean)
Aid Station Deets
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Early (thru 8/30) Advance (thru 10/16) Late* (thru 10/27) Walk-Up*
5K $35 $40 $45* $50*
10K $40 $45 $50* $55*
Half $60 $70 $75* $80*

*Because goodies must be ordered far enough in advance to have them printed & shipped, late and walk-up 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.

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Without YOU, these events simply wouldn’t be possible.

From event prep to packet pick-up, and from course marshals to meal service, there are a variety of ways you can help. Sure… when you volunteer, you can look forward to that warm & fuzzy feeling that comes by giving back, but with All-Out, there’s WAY more to it than that. There’s no experience necessary, but space is limited so please let us know you’re available right away! Athletes: We know endurance sports can take a big chunk out of your pocket book and we’ve got your back. Check out our ‘Earn a Free Entry’ program! Groups: Tired of those bake sales & car washes? We are happy to be a part of your fundraising efforts! (Donations begin with just 10 volunteers and you need not be an official nonprofit.) Students: Earn those credits in the most fun way possible!


Click the buttons above or ‘Volunteer Now’ below for more information, then brace yourself… you’re about to have a blast!

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Tuesday, 8/30 11:59p Early Pricing Ends
Sunday, 10/16 11:59p Advance Pricing Ends
Thursday, 10/27 11:59p Late Pricing Ends & Online Registration Closes
Friday, 10/28 4:00 – 7:00 p.m. Early Packet Pick-Up & Walk-Up Registration  (Photo ID Required)
YMCA Logo Susan M. Duncan Family YMCA:  6350 Eldridge St, Arvada
Click here for a map or to get directions.
You DO NOT want to wait until race day to pick up your packet! Why? You’ll miss out on the chance to win one of several SWEET prizes being given away only at Early Packet Pick-Up.
Sunday, 10/30 6:30a Volunteer Check-In
7:00a Race Day Packet Pick-Up & Walk-Up Registration Opens  (Photo ID Required)
8:45a Half Marathon Race Day Registration Ends
9:00a Half Marathon Start
9:15a 5 & 10K Race Day Registration Ends
9:30a 10K Start
9:40a 5K Start
10:30a 5K Awards & Prize Drawing
11:00a 10K Awards & Prize Drawing
12:00p Half Marathon Awards & Prize Drawing

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Directions – Jefferson County’s NAAC stadium is located at 19500 W 64th Pkwy in Golden, CO. From 64th & Hwy 93, go east one block to the stadium entrance on your right. Click here for a map or to get directions.

Parking – Athletes & spectators will be required to park in the areas shown in blue on the site map above, keeping the lot closest to the start / finish area available for volunteers, course vehicles and other event traffic. Please follow all parking signs & staff direction on race day.

Wheelchair / Stroller Access – All are welcome, but there is one short unpaved section of the course you should consider before registering. Please email us at for more information.


The above information is only that which is unique to this event.

Please click here to review other important general details and AMP Company Policies.

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