Colorado 13er (Half Marathon/10k/5k)
About this race
The Colorado 13er is THE event where the best parts of trail running and road racing combine to create a truly enjoyable, kind-to-your-body, well-supported 13.1 race!
Seasoned runners and first-timers alike appreciate the excellent communication from the 13er race crew who make this event accessible for athletes of all levels.
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Join us for this exceptionally scenic, looped 13.1 course which runs through gorgeous Louisville, Colorado!
We designed this course so that you can enjoy all of the spectacular views of the Flatirons that Colorado has to offer. Come see for yourself!
Groups/Teams/Families: Save $5 per person for groups of 5 or more! See our FAQ page for more questions!
Click the drop-down menu under "race info" for all race details! Any questions, please email us at info@colorado13er.com
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Here's the good stuff!!
- 10 water station passes
- 5 port-a-john passes
- 9 miles of FLAT, crushed gravel
- nearby, free parking
- spectator friendly
- 13.1 finisher medal
- 10k or 5k options available
- iced towels at the finish line
- gender-specific performance tees for every registrant
- chip timed with texted results
- live, real-time results posted online
- 13.1 miles of million-dollar views AND
- the amazing sense of accomplishment you can only get from running 13.1! (or 5k or 10k!)
Pick your distance
Running
13er
13.1 finishers will receive a FINISHERS medal when completing the event!
10k
5k
Typical race-day weather
Based on 13 years of Open-Meteo archive data for this event's race dates in Louisville, plus the 3 days either side.
The sun rises at 5:32 AM and sets at 8:26 PM local time (MDT) in Louisville on June 6, 2027 — 14h 54m 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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Results — Colorado 13er (Half Marathon/10k/5k)
Other races near Louisville
Different organizers, within 40 miles, in the next three months
Superior Stocking Run
AdventHealth Avista Louisville Turkey Trot
Colleen De Reuck XC Classic
Pat Patten Invitational
🏃 Plan Your Next Race in Louisville
Find upcoming events by distance:
- Louisville 5K Races 6 races
- 10K Run Events in Louisville 3 races
- Louisville Half Marathons 2 races
- Louisville Running Calendar 2026 7 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, 8 Louisville events
Spotted something wrong? Tell us and we'll fix it.