Photo: Vyacheslav Argenberg · CC BY 4.0 · Wikimedia CommonsTrail RunningUTMB World Series
Trail Running Festival Desert Rats by UTMB
Fruita, United States
April 9, 2027 to April 11, 2027Date confirmed
100 km48 km21 km9 km
ForestNature & Off-Road+4
USTrail Running · Colorado · 50 Events · 158 Races
Trail Running in Colorado
50 verified events with 158 individual races (18 confirmed dates) in Colorado complete with route maps and elevation profiles.
Events5018 confirmed dates
Competitions158Races & courses
Distances0.8 - 160.9 kmCourse distance range
Max. Elevation Gain+10,120 m D+Course elevation profile
Selected Events
Featured Events & Highlights
Photo: Vyacheslav Argenberg · CC BY 4.0 · Wikimedia Commons
Photo: Larry D. Moore · CC BY 4.0 · Wikimedia CommonsTrail Running
Hardrock 100
Silverton, United States
July 9, 2027 to July 11, 2027Date confirmed
160.93 km
Multi-DayHigh Altitude+4
Photo: NPS · Public Domain · Wikimedia CommonsTrail RunningUTMB Index Races
Ouray 100 Mile Endurance Run
Ouray, United States
July 16, 2027 to July 18, 2027Date confirmed
160.93 km80.47 km
MountainHigh Altitude+3
Photo: Jonathan Beech · CC BY-SA 4.0 · Wikimedia CommonsTrail RunningUTMB Index Races
Leadville Trail 100 Run
Leadville, United States
August 21, 2027 to August 22, 2027Date confirmed
160.93 km
Nature & Off-RoadMountain+3
Photo: Larry D. Moore · CC BY 4.0 · Wikimedia CommonsTrail Running
Imogene Pass Run
Ouray, United States
September 11, 2027Date confirmed
27.52 km
City RunMountain+1
Photo: Larry D. Moore · CC BY 4.0 · Wikimedia CommonsTrail Running
Pikes Peak Marathon & Ascent
Manitou Springs, United States
September 18, 2027 to September 19, 2027Date confirmed
42.2 km21.4 km
City RunMountain+3
Photo: Larry D. Moore · CC BY 4.0 · Wikimedia CommonsTrail RunningUTMB Index Races
Silverheels 100
Como, United States
Date to be announcedDate TBA
160.93 km102 km80.47 km61 km+2
MountainNature & Off-Road+2
Photo: Larry D. Moore · CC BY 4.0 · Wikimedia CommonsTrail RunningUTMB Index Races
Sangre de Cristo Ultras
Westcliffe, United States
Date to be announcedDate TBA
160.93 km98.1 km80.47 km49.6 km+2
MountainHigh Altitude+2
Dates & Schedule
Race Calendar
April 2027
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Apr 9, 2027 - Apr 11, 2027 | Trail Running Festival Desert Rats by UTMB | Fruita, Colorado, US | Trail Running | 100 km48 km21 km9 km |
July 2027
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Jul 9, 2027 - Jul 11, 2027 | Hardrock 100 | Silverton, Colorado, US | Trail Running | 160.93 km |
| Jul 16, 2027 - Jul 18, 2027 | Ouray 100 Mile Endurance Run | Ouray, Colorado, US | Trail Running | 160.93 km80.47 km |
August 2027
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Aug 21, 2027 - Aug 22, 2027 | Leadville Trail 100 Run | Leadville, Colorado, US | Trail Running | 160.93 km |
September 2027
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Sep 11, 2027 | Imogene Pass Run | Ouray, Colorado, US | Trail Running | 27.52 km |
| Sep 18, 2027 - Sep 19, 2027 | Pikes Peak Marathon & Ascent | Manitou Springs, Colorado, US | Trail Running | 42.2 km21.4 km |
Date to be announced
| Date | Event | Location | Disciplines | Distances |
|---|---|---|---|---|
| Date to be announced | Silverheels 100 | Como, Colorado, US | Trail Running | 160.93 km102 km80.47 km61 km |
| Date to be announced | Sangre de Cristo Ultras | Westcliffe, Colorado, US | Trail Running | 160.93 km98.1 km80.47 km49.6 km |
| Date to be announced | Frisco Mountain Goat Kids Trail Running Series | Frisco, Colorado, US | Trail Running | 5 km2.5 km2.41 km805 m |
| Date to be announced | Greenland Trail Races | Larkspur, Colorado, US | Trail Running | 50 km25 km13 km6 km |
| Date to be announced | Powderhorn Mountain Ultra, Vertical Challenge and relay | Mesa, Colorado, US | Trail Running | 10 km6 h12 h |
| Date to be announced | Silverton Alpine | Silverton, Colorado, US | Trail Running | 51 km42.97 km12.88 km |
Events by Month
Overview & Route Character
Off-road running on singletrack, forest paths, and alpine ridges, spanning short discovery trails to high-mountain ultra-trails. Trail running is defined by elevation gain, technical terrain, and natural landscapes across forest singletrack, coastal cliffs, and mountain passes. In this Trail Running in Colorado directory, RunningCompass curates 50 events comprising 158 individual races, including 18 events with confirmed upcoming dates.
Courses span distances ranging from 0.8 km to 160.9 km and elevation gains up to +10,120 m. Key host locations include Fruita, Silverton, Ouray, Leadville. Notable events in this selection include Trail Running Festival Desert Rats by UTMB, Hardrock 100, Ouray 100 Mile Endurance Run.
Questions & Answers
Frequently asked questions (FAQ)
How many events and races are listed under Trail Running in Colorado?
This overview currently includes 50 verified events featuring 158 individual races. Of these, 18 events have confirmed upcoming dates on the calendar, while 32 events await next edition date confirmation from the organizer.
What race distances and elevation profiles are included in Trail Running in Colorado?
Races in this selection span distances of 0.8 km to 160.9 km. The most demanding courses reach up to +10,120 m of positive elevation gain. Featured disciplines include Trail Running.
Which host cities and flagship events stand out in Trail Running in Colorado?
Top host locations include Fruita, Silverton, Ouray, Leadville, Manitou Springs. Representative events in the catalog include Trail Running Festival Desert Rats by UTMB, Hardrock 100, Ouray 100 Mile Endurance Run, Leadville Trail 100 Run. Off-road running on singletrack, forest paths, and alpine ridges, spanning short discovery trails to high-mountain ultra-trails.
How can I inspect route maps, elevation charts, and date filters for Trail Running in Colorado?
Every event profile provides an interactive route map, a detailed elevation chart across all 158 races, and a GPX track download. You can also switch directly to the interactive map explorer to filter by date range and distance.