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
USRunning Territory & Spot
Running Races in the Colorado Mountains
17 verified events (3 confirmed dates) and 48 races in Colorado Mountains with course maps and elevation profiles.
Events173 confirmed dates
Competitions48Races & courses
Distances5 - 194.6 kmCourse distance range
Max. Elevation Gain+10,120 m D+Course elevation profile
Selected Events
Featured Events & Highlights
Photo: Larry D. Moore · CC BY 4.0 · Wikimedia Commons
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: 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
Photo: Larry D. Moore · CC BY 4.0 · Wikimedia CommonsTrail RunningUTMB Index Races
Silverton Alpine
Silverton, United States
Date to be announcedDate TBA
51 km42.97 km12.88 km
MountainNature & Off-Road+1
Photo: NPS · Public Domain · Wikimedia CommonsTrail RunningUTMB Index Races
Sheep Mountain Trail Runs
Fairplay, United States
Date to be announcedDate TBA
80.47 km50 km21 km
High AltitudeMountain+1
Photo: NPS · Public Domain · Wikimedia CommonsTrail RunningUTMB Index Races
Silverton Ultra Dirty
Silverton, United States
Date to be announcedDate TBA
160.93 km95.8 km58.9 km
MountainNature & Off-Road+2
Photo: Larry D. Moore · CC BY 4.0 · Wikimedia CommonsTrail Running
North Fork 50K Trail Race
Pine Grove, United States
Date to be announcedDate TBA
80.47 km50 km
Nature & Off-RoadForest
Dates & Schedule
Race Calendar
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 |
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 | Silverton Alpine | Silverton, Colorado, US | Trail Running | 51 km42.97 km12.88 km |
| Date to be announced | Sheep Mountain Trail Runs | Fairplay, Colorado, US | Trail Running | 80.47 km50 km21 km |
| Date to be announced | Silverton Ultra Dirty | Silverton, Colorado, US | Trail Running | 160.93 km95.8 km58.9 km |
| Date to be announced | North Fork 50K Trail Race | Pine Grove, Colorado, US | Trail Running | 80.47 km50 km |
| Date to be announced | Triple Bypass | Idaho Springs, Colorado, US | Road Cycling | 194.6 km134.6 km |
| Date to be announced | Kendall Mountain Run | Silverton, Colorado, US | Trail Running | 19 km11 km |
| Date to be announced | Middle Creek Flyathlon | Saguache, Colorado, US | Trail Running | 20.92 km11.27 km |
| Date to be announced | Two Brothers Up-and-Down | Idaho Springs, Colorado, US | Trail Running | 10 km5 km |
Events by Month
Overview & Route Character
The running territory of Colorado Mountains (United States, Colorado) is represented in the RunningCompass catalog with 17 public events and 48 individual races, including 3 events with confirmed dates for the 2026-2027 season. Core disciplines include Trail Running and Road Cycling. Key host locations include Silverton, Ouray, Como, and Westcliffe. Notable events in the selection include Hardrock 100, Ouray 100 Mile Endurance Run, and Silverheels 100.
Race distances span from 5 km to 194.6 km, reaching up to +10,120 m of elevation gain on the most demanding courses. Every race listed for Colorado Mountains includes an interactive MapLibre course map powered by OpenStreetMap, a high-resolution SVG elevation profile with gradient telemetry, and a direct GPX track download.
Questions & Answers
Frequently asked questions (FAQ)
How many running events and races take place in Colorado Mountains?
RunningCompass currently lists 17 verified events with 48 individual races in Colorado Mountains. A total of 3 events have confirmed upcoming dates, while additional annual editions include full course and distance specifications. Notable events in the selection include Hardrock 100, Ouray 100 Mile Endurance Run, and Silverheels 100.
What disciplines and race distances are offered in Colorado Mountains?
Events in Colorado Mountains focus on Trail Running and Road Cycling. Course distances range from 5 km entry-level races up to 194.6 km endurance challenges. Primary host cities and towns include Silverton, Ouray, Como, and Westcliffe.
What is the course profile, terrain, and elevation gain like in Colorado Mountains?
The most selective courses in Colorado Mountains climb up to +10,120 m of positive elevation gain. Each event page provides exact altitude range, ascent (+m), descent (-m), average and maximum gradient, an interactive course map, and a downloadable GPX file.
How can I find dates and register for running events in Colorado Mountains?
The monthly race calendar on this page groups all confirmed dates chronologically alongside annual events awaiting their next date announcement. Use the discipline, distance, and month links or switch to the interactive map view (/en/events?view=map) to inspect individual event profiles and official organizer registration links.