In 230 days · Sat, Jun 19, 2027
Don't let race day sneak up
One email during race week. That's it.
Saturday, June 19th, 2027
E 108th Ave & Colorado Blvd, Thornton CO
5K
57–84°F · low rain risk
See last 10 years
On this date: rain 2 of the last 10 years
2026
61–82°F
dry
2025
55–92°F
dry
2024
52–77°F
dry
2023
53–88°F
dry
2022
71–90°F
dry
2021
62–87°F
dry
2020
53–74°F
rain
2019
53–80°F
dry
2018
59–67°F
rain
2017
58–84°F
dry
Best months to race in Colorado →
About this race
Ready to get off the sofa and gallop around Thornton with some friends? Yeah, you are! Come frolic with us at the Unicorn Runner 5k in Thornton to kick off your summer! You'll earn a sweet tee shirt and a flashy unicorn finisher medal!
It's a 5k distance for all, and whether you walk, trot, canter or gallop, we'll be happy to see you! This event also features a shorter saunter for those not quite ready to enjoy a full 5k! The untimed 3/4 mile run is long enough to get your heart rate up and be a 'real run' without being a sprint!
The Balloon Guy will be back this year- creating balloon creations for all!
Remember to refer your friends and you can earn back up to $20 back from your registration fee. Also - teams of 5 or more each get $5 off their registration. So form a group and get your buddies to join you today!
All the info you need about this event is found on this site - click the menu bar or scroll to the bottom to see a listing of all page links!
Denver Unicorn 5k - April
Highlands Ranch Unicorn 5k - August
Course map
Train with a club
Run clubs near Thornton to train with before race day.
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