I Ain't Scared (of 5k)
About this race
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!
Pick your distance
Running
5k
Race-day daylight
We have no recorded weather for Thornton yet, but sunrise and sunset follow from the venue and the date.
The sun rises at 7:28 AM and sets at 5:59 PM local time (MDT) in Thornton on October 31, 2026 — 10h 31m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
Reviews
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Other races near Thornton
Different organizers, within 40 miles, in the next three months
I Can 5k
4A Region 3 XC State Qualifier
WinterFest 5k & Fun Run
Candy Cane Course - Denver
🏃 Plan Your Next Race in Thornton
Find upcoming events by distance:
- Thornton 5K Races 7 races
- Thornton Running Calendar 2026 13 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 13 Thornton events
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