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All-Out Kooky-Spooky 2026

Date
Sunday, November 1, 2026
Start time
9:00 AM start (Denver)
Entry fee
From $50 · goes up to $85 on Oct 19, 2026
Included with entry
Includes a hat
Fundraising
Takes optional donations when you register
Register on RunSignup

Registration is open.

We earn a small commission when you register through this link, at no cost to you. Details

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Events and entry fees

EventDistanceWhenEntry feeCap
Half MarathonHalf MarathonNov 1, 20269:00 AM$80$85 after Oct 19, 2026–
10K10KNov 1, 20269:30 AM$60$65 after Oct 19, 2026–
5K5KNov 1, 20269:45 AM$50$55 after Oct 19, 2026–
VIRTUAL 10KVirtual10KNov 1, 20269:00 AM$40$55 after Oct 19, 2026–
VIRTUAL 5KVirtual5KNov 1, 20269:00 AM$35$40 after Oct 19, 2026–
VIRTUAL Half MarathonVirtualHalf MarathonNov 1, 20269:00 AM$50$55 after Oct 19, 2026–

Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.

Register on RunSignup

The Half Marathon fee goes up to $85 on Oct 19, 2026.

Race day planning

Entry fee schedule

  • Half Marathon: $80 until Oct 19, then $85 until Nov 1.
  • 10K: $60 until Oct 19, then $65 until Nov 1.
  • 5K: $50 until Oct 19, then $55 until Nov 1.

Online registration closes Nov 1, 2026, unless the race fills first.

How the price compares

At $80, entry is about 33 percent above a typical half marathon in Colorado, which costs $60 right now.

What a typical finish looks like

A typical finisher at a half marathon in Colorado runs 2:12:38, about 10:07 a mile, based on 60 races with published results. Women typically finish in 2:19:55 and men in 2:03:31.

Light and altitude

Sunrise on race morning is at about 6:29 AM, and the Half Marathon starts at 9:00 AM. The start sits about 7,980 feet above sea level, high enough that most runners from lower ground run noticeably slower.

Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.

Start location and course

19500 W 64th Pkwy, Golden, CO 80403

The pin marks the address the race lists, which is usually the start. Course maps are the organizers' own.

Half Marathon

261
finishers
2:21:41
median (10:48 /mi)
1:19:24
winning time
56% / 44%
women / men
median 2:21:411:27:533:34:51
Finish times, fastest to slowest. Each bar is a slice of the field; the dashed line is the median.

5K

205
finishers
37:11
median (11:58 /mi)
19:56
winning time
60% / 40%
women / men

10K

191
finishers
1:09:51
median (11:14 /mi)
36:28
winning time
64% / 36%
women / men

Aggregated from official results for All-Out Kooky-Spooky. Individual finisher names are not stored here.

How fast do you need to be at All-Out Kooky-Spooky?

At the 2025 Half Marathon, the fastest tenth finished in 1:47:19 or better, the top quarter in 2:02:58, and half the field in 2:21:41; the last tenth came in after 2:55:18.

At the 2025 5K, the fastest tenth finished in 25:37 or better, the top quarter in 29:57, and half the field in 37:11; the last tenth came in after 54:50.

At the 2025 10K, the fastest tenth finished in 51:57 or better, the top quarter in 57:37, and half the field in 1:09:51; the last tenth came in after 1:27:15.

Third place by age group, 2025 Half Marathon
AgeWomenMen
Under 202:13:031:45:50
20-291:50:441:45:37
30-391:40:321:35:06
40-491:58:091:40:18
50-592:29:101:45:14

Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.

What would my time get me?

Where a finish time would have placed in 2025.

Finishers by year

Up 88 percent since 2023.

All events combined, from official results.

All-Out Kooky-Spooky Half Marathon year by year

From 2023 to 2025, the field went from 186 to 261 finishers, and the median time rose from 2:18:51 to 2:21:41.

YearFinishersMedianFastest tenthWinner
2025261 (-2%)2:21:41under 1:47:191:19:24
2024267 (+44%)2:12:20under 1:45:151:21:49
20231862:18:51under 1:47:531:27:53

From each year's official results for the Half Marathon; virtual options are left out.

How fast is it?

Slower than most Colorado half marathons

The fastest quarter of the 2025 half marathon field finished under 2:02:58, against 1:56:43 in a typical Colorado half marathon, so times here run 5 percent slower.

  • 5K: About average for Colorado 5Ks. The fastest quarter of the 2025 5K field finished under 29:57, against 29:37 in a typical Colorado 5K, so times here are about average.
  • 10K: Slower than most Colorado 10Ks. The fastest quarter of the 2025 10K field finished under 57:37, against 55:16 in a typical Colorado 10K, so times here run 4 percent slower.

Compares the fastest quarter of each field, so walkers and first-timers do not skew it. It reflects the course and the field together: a flat course, cool weather, or a competitive crowd all make times faster.

Typical race-day weather

Around November 1 the day usually runs from 34°F at dawn to 56°F in the afternoon, with measurable rain on about 15% of days. Cold snaps dip to 25°F and hot years reach 71°F.

Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.

From the race's page

What the organizers of All-Out Kooky-Spooky cover on their registration page, in brief.

Schedule and packet pickup

Athlete details

We look forward to seeing you at Kooky-Spooky! Here's all the details that you need for a safe and fun event. Packet pickup. Early packet pickup is Saturday, 12-3p at The Spot Golden, 1391 Brickyard Rd, Golden CO 80403. Packet pickup opens…

Schedule and packet pickup

Schedule

Saturday, October 26. 12:00-3:00p Early packet pick-up. Location: TBD. Sunday, October 27. 8:00a Packet pick-up open. 8:00a Costume contest open (at event banner). 8:45a Half marathon pick-up/registration close. 9:00a Half marathon start…

Course

Course details

Jefferson County's NAAC Stadium. 19500 W 64th Pkwy, Golden, CO 80403. Wheelchair/Stroller Access: All are welcome, but there is one short unpaved section of the course you should consider before registering. Please contact us for more…

Course details, from the All-Out Kooky-Spooky page

Shirt and medal

Features & SWAG

♦ RRCA Certified Race Director— Organization you can count on! With hundreds of events under the belt of our director and a staff with 25+ years experience, your event will run smoothly. (Ha! No pun intended). ♦ A Full-On Costume Contest—…

Features & SWAG, from the All-Out Kooky-Spooky page

Awards

Costume Contest

You can't have a Halloween event without a costume contest! You can win a free race! Dress in your 'G' rated Halloween best then swing by the awards tent before you race to enter! The Rules. How to Enter. No pre-registration necessary…

Full details on the race's RunSignup page

Race details

Where
19500 W 64th Pkwy, Golden, CO 80403Map
Course
Road
Start elevation
About 7,980 feet
Included with entry
Beanie
Donations
Accepted when you register
Distances
5K, 10K, Half Marathon
Editions
2026 (Nov 1, 2026), 2025 (Nov 2, 2025), 2024 (Oct 27, 2024), 2023 (Oct 29, 2023), 2012 (Oct 27, 2012)

Organize this race? Add details or a correction

Plan your race

Quick answers

When is All-Out Kooky-Spooky?
Sunday, November 1, 2026, starting at 9:00 AM.
How much does it cost?
Entry starts at $50 before processing fees, and rises to $85 on Oct 19, 2026.
When does registration close?
Online registration closes Nov 1, 2026, unless the race fills first.
Is the entry fee high for Colorado?
At $80, entry is about 33 percent above a typical half marathon in Colorado, which costs $60 right now.
Do runners get a shirt or medal?
Entry includes a hat, according to the race's registration page. Check it for sizes and whether kids' races get the same.
Can I donate to a cause when I register?
Yes. The registration form offers an optional donation, usually for the charity or nonprofit the race supports. The race's own page names the cause.
What distances can I run?
5K, 10K, Half Marathon.
How big is it, and how fast?
In 2025, 261 runners finished the Half Marathon; the median finish was 2:21:41 and the winner ran 1:19:24.
Is it a fast course?
The fastest quarter of the 2025 half marathon field finished under 2:02:58, against 1:56:43 in a typical Colorado half marathon, so times here run 5 percent slower.
Where does it start?
19500 W 64th Pkwy, Golden, CO 80403.
Is there a course map?
Yes, the organizers publish the route on Plotaroute; the link is under Start location and course.

From the organizers

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!