Greenland Trail Races
About this race
The Greenland Trail Race offers four outstanding distances in southern Douglas County. Run the 4 Miler, the 8 Miler, the 25K, or tackle the 50K ultramarathon, Colorado’s fastest 50K! With Pikes Peak as your backdrop, you’ll cruise over a soft dirt trail on your way to a new personal best. With chip timing, an innovative technical running shirt in men’s and women’s sizing, food and beer at the finish, this race will make you want to come back for more!
Pick your distance
Trail running
50K
Running
25K
8 Mile
4 Mile
Virtual 50K
Virtual Race
Typical race-day weather
Based on 22 years of Open-Meteo archive data for this event's race dates in Larkspur, plus the 3 days either side.
The sun rises at 6:00 AM and sets at 7:52 PM local time (MDT) in Larkspur on May 1, 2027 — 13h 51m 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 — Greenland Trail Races
Other races near Larkspur
Different organizers, within 40 miles, in the next three months
Claim the Rock Invitational
The Palmer Lake .5K (Yes "Point" 5)
Ymca Creepy Crawl 5K
Friday The 13K - Castle Rock Meet UP
🏃 Plan Your Next Race in Larkspur
Find upcoming events by distance:
- Larkspur Running Calendar 2026 2 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, 3 Larkspur events
Spotted something wrong? Tell us and we'll fix it.