Photo: Larry D. Moore · CC BY 4.0 · Wikimedia CommonsRoad RunningWorld Marathon Majors Qualifier
Denver Marathon
Denver, United States
Date to be announcedDate TBA
42.2 km21.1 km10 km5 km
Kids & Youth RacesCity Run+3
USRoad Running · Half Marathons (21.1 km) · Colorado · 6 Events · 24 Races
Half Marathons (21.1 km) in Colorado
6 verified events with 24 individual races (0 confirmed dates) in Colorado complete with route maps and elevation profiles.
Events60 confirmed dates
Competitions24Races & courses
Distances5 - 50 kmCourse distance range
Max. Elevation Gain+380 m D+Course elevation profile
Selected Events
Featured Events & Highlights
Photo: Larry D. Moore · CC BY 4.0 · Wikimedia CommonsPhoto: Larry D. Moore · CC BY 4.0 · Wikimedia CommonsRoad Running
Barr Lake Trail Race
Brighton, United States
Date to be announcedDate TBA
50 km30 km21.1 km15 km+1
Lakes & PondsNature & Off-Road+1
Photo: Larry D. Moore · CC BY 4.0 · Wikimedia CommonsRoad RunningBoston Marathon Qualifier
Colorado Marathon
Colorado Springs, United States
Date to be announcedDate TBA
42.2 km21.1 km10 km5 km
MountainHigh Altitude+5
Photo: Larry D. Moore · CC BY 4.0 · Wikimedia CommonsRoad Running
Boulderthon
Boulder, United States
Date to be announcedDate TBA
42.2 km21.1 km10 km5 km
Nature & Off-RoadCity Run
Photo: Larry D. Moore · CC BY 4.0 · Wikimedia CommonsRoad Running
Steamboat Marathon
Steamboat Springs, United States
Date to be announcedDate TBA
42.2 km21.1 km10 km
City RunKids & Youth Races
Photo: Larry D. Moore · CC BY 4.0 · Wikimedia CommonsRoad RunningWalking & Hiking
Slacker Race
Denver, United States
Date to be announcedDate TBA
21.1 km6 km
Nature & Off-RoadCity Run+1
Dates & Schedule
Race Calendar
Date to be announced
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Date to be announced | Denver Marathon | Denver, Colorado, US | Road Running | 42.2 km21.1 km10 km5 km |
| Date to be announced | Barr Lake Trail Race | Brighton, Colorado, US | Road Running | 50 km30 km21.1 km15 km |
| Date to be announced | Colorado Marathon | Colorado Springs, Colorado, US | Road Running | 42.2 km21.1 km10 km5 km |
| Date to be announced | Boulderthon | Boulder, Colorado, US | Road Running | 42.2 km21.1 km10 km5 km |
| Date to be announced | Steamboat Marathon | Steamboat Springs, Colorado, US | Road Running | 42.2 km21.1 km10 km |
| Date to be announced | Slacker Race | Denver, Colorado, US | Road RunningWalking & Hiking | 21.1 km6 km |
Events by Month
Overview & Route Character
Covering 21.0975 kilometers, the half marathon blends endurance and speed across fast city boulevards and scenic road courses. Measured asphalt and city courses ranging from fast 5K and 10K races to international half marathons, marathons, and 100K road ultras. In this Half Marathons (21.1 km) in Colorado directory, RunningCompass curates 6 events comprising 24 individual races, including 0 events with confirmed upcoming dates.
Courses span distances ranging from 5 km to 50 km and elevation gains up to +380 m. Key host locations include Denver, Brighton, Colorado Springs, Boulder. Notable events in this selection include Denver Marathon, Barr Lake Trail Race, Colorado Marathon.
Questions & Answers
Frequently asked questions (FAQ)
How many events and races are listed under Half Marathons (21.1 km) in Colorado?
This overview currently includes 6 verified events featuring 24 individual races. Of these, 0 events have confirmed upcoming dates on the calendar, while 6 events await next edition date confirmation from the organizer.
What race distances and elevation profiles are included in Half Marathons (21.1 km) in Colorado?
Races in this selection span distances of 5 km to 50 km. The most demanding courses reach up to +380 m of positive elevation gain. Featured disciplines include Road Running, Walking & Hiking.
Which host cities and flagship events stand out in Half Marathons (21.1 km) in Colorado?
Top host locations include Denver, Brighton, Colorado Springs, Boulder, Steamboat Springs. Representative events in the catalog include Denver Marathon, Barr Lake Trail Race, Colorado Marathon, Boulderthon. Covering 21.0975 kilometers, the half marathon blends endurance and speed across fast city boulevards and scenic road courses.
How can I inspect route maps, elevation charts, and date filters for Half Marathons (21.1 km) in Colorado?
Every event profile provides an interactive route map, a detailed elevation chart across all 24 races, and a GPX track download. You can also switch directly to the interactive map explorer to filter by date range and distance.