I Ain't Scared (of 5k)
- Date
- October 31, 2026
- Distance
- 5k · Kids Fun Run (Approx 100 yards)
From the Organizer
Dress up and run spooky and silly at the I Ain't Scared (of 5k) in Thornton! Fun music, Halloween snacks and costumes galore!! This event only comes around once every few years when Halloween lands on a weekend. You don't want to miss it! Every racer gets a T-shirt with GLOW IN THE DARK printing and a FINISHER MEDAL!
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
61°
Typical Low
32°
Chance of Rain
16%
Based on US Climate Normals data from Northglenn, 3 mi from the venue.
Host City
About Thornton, CO
Population
142,878
as of 2023
Elevation
5,347 ft
Nearest Airport
DEN
Denver International Airport · 16 mi
Time Zone
Mountain Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at I Ain't Scared (of 5k), put it on the calendar, and turn “someday” into a start date.
145
Days to train
- Race
- I Ain't Scared (of 5k)
- Date
- October 31, 2026
Coming Up
More Running races near Thornton, CO
Treat Trot - Denver
Less than a mile away
Unicorn 5k (North)
5K
Less than a mile away
All-Out Dog Days
4 miles away
Summer Sizzler- Denver
Less than a mile away
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is the I Ain't Scared (of 5k)?
- I Ain't Scared (of 5k) is a running race held in Thornton, Colorado on October 31, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the I Ain't Scared (of 5k)?
- Saturday, October 31, 2026 in Thornton, Colorado at Colorado and 108th Ave, Thornton, CO. Check the event page for exact start times and wave schedules.
- How do I register for the I Ain't Scared (of 5k)?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
I Ain't Scared (of 5k)
Oct 31, 2026