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Built on bad decisions in Boulder, CO.

Silverheels Trail Runs 100K

Draft Listing
  1. Human Potential Running Series
  2. 2026 Edition

63-mile point-to-point through Colorado's mining country from mountain start to historic Roundhouse finish

Directions
DeadlineJuly 05, 2026
Find a Qualifier
This event took place on July 10, 2026

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All trail races in Colorado→
July 10, 2026
Friday 4:00am MDT start
Como, CO
United States
63.1 miles
Point to Point Course
12,960 ft
Elevation Gain
Open Registration
No lottery
No Service Requirement
Does not require trail or volunteer work
Qualifier
Distance qualifier required (50M)
Very Challenging
Experienced ultrarunners
Links
WebsiteInstagramFacebookYouTube
2015
Established

What Makes It Great

A 100% point-to-point ultramarathon from the Burning Bear Trailhead in Grant to the historic Como Roundhouse, the Silverheels 100K shares its start with the 100-mile and traverses the same high-alpine terrain of Colorado's South Park through mountain passes, wildflower meadows, and historic mining areas. Runners climb to 12,000'+ passes and stay predominantly above 10,000' throughout. With over 10,000 feet of climbing across 63 miles, it's a substantial high-altitude challenge that requires a recent qualifying race for entry.

Difficulty

Advanced
7/10

Experienced ultrarunners

High Altitude
Steep Climbing
Night Running
Variable Weather
Remote Terrain

Finish Awards

Finisher's Medal
All official 100K finishers receive a finisher's medal.

Silverheels Trail Runs 100K

Como, CO, United StatesJuly 10, 2026

July 10, 2026
Course map for Silverheels Trail Runs 100K
DistDistance63.1 mi
GainElevation Gain12,960 ft
High AltitudeSteep ClimbingNight RunningVariable WeatherRemote Terrain

Entry Timeline

Qualifier Window EndMay 31, 2026
Registration DeadlineJuly 05, 2026
Race DayJuly 10, 2026

Lottery

This event uses open registration - no lottery entry required.

Qualifier

Requiredfor race entry

Must complete a 50 Mile race or longer within the qualification window

Qualifying window: January 01, 2024 – May 31, 2026

Completion of any official ultramarathon of 50 miles or longer between January 1, 2024 and May 31, 2026. Race must be official (permitted, timed, online results). Virtual, Fat Ass, and journey runs do not qualify.

Service Requirement

This race does not have a service requirement for entry.
63.1 mi
Distance
Point to Point
Route
10,889 ft
Average Elevation
12,960 ft
Total Ascent
12,770 ft
Total Descent
12,562 ft
High Point
9,603 ft
Low Point
Course map
Launch Course Explorer

Aid Stations

LocationMileElevation
Start
Start
0.09,619 ft
Finish
Finish
63.49,806 ft

Sign in to see cutoffs, crew access, drop bags, and services for every aid station.

On-Site Camping Available

Tent camping available at the race venue near the Como Roundhouse for $20/weekend, benefiting The South Park Rail Society. Check-in available from 2pm Thursday. No roof-top tents or trailers. A porta-potty will be on-site. No running water. Reserve a tent site via RunSignUp during registration or separately at https://runsignup.com/Race/Store/CO/Fairplay/Silverheels100MileEnduranceRun. Nearby towns with lodging: Fairplay (10 mi), Alma (16 mi), Breckenridge (33 mi), Bailey (30 mi).

Crew Access Points

Pacer Rules

  • Pacers allowed from Tarryall, Crooked Creek, and Poor Man's aid stations. One (1) pacer at a time.

Crew Rules

  • Crews welcome at designated aid stations only. One crew vehicle with placard per runner.
Weather
High Altitude

Average course elevation over 10,000'. Acclimatization recommended.

Lightning/Thunderstorm Risk

July monsoon season brings afternoon thunderstorms with lightning on exposed passes.

Gear Rules

Required Gear

No required gear specified

Recommended Gear

No recommended gear specified

Race Reports

Silverheels 100k — Race Report (2024)
By Lexi Goforth / RoamLab • 2024

Videos from other Silverheels Trail Runs events

Silverheels 100 | Running Through Colorado's Mining Past | My FIRST 100 Mile Race
Silverheels 100 | Running Through Colorado's Mining Past | My FIRST 100 Mile Race
Silverheels Trail Runs 100 Mile
2025
Conquering the Silverheels 100 Mile Endurance Run (2024)
Conquering the Silverheels 100 Mile Endurance Run (2024)
Silverheels Trail Runs 100 Mile
2024
The Newly Revamped Silverheels Trail Runs (Official HPRS Overview)
The Newly Revamped Silverheels Trail Runs (Official HPRS Overview)
Silverheels Trail Runs 100 Mile
Human Potential Running Series•2023

Race reports from other Silverheels Trail Runs events

Silverheels 100 Race Report (New Course, 2025)Silverheels Trail Runs 100 Mile
By Jen Wold / Single Step Running • 2025

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Register•July 10, 2026