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Rocky Mountain Milestone Challenge

Name: Rocky Mountain Milestone Challenge
Start: 2026-08-19
End: 2026-08-23
Location: Granby

Granby, United States • 19-23 Aug 2026

The Rocky Mountain Milestone Challenge will take place in Granby from Wednesday 19 August 2026 to Sunday 23 August 2026. You can run between 13 and 100 miles. Visit the organization's website for the most recent information.

United States Colorado Granby

Race information

Registration

100 mi

100 Miles

100 km

100k

50 mi

50 Miles

50 km

50k

26 mi

26.2 Miles

13 mi

13.1 Miles

Visit the organization's website for the most recent information.

Trail runs nearby

Saturday Aug 1

Winter Park 50K

Mountain trail races in Winter Park CO on August 1 2026 with 50K, 21K and 10K courses through high-alpine singletrack and town finishes.

Saturday Aug 15

Operation 14ERS

Silver Plume

Mud Run / Obstacle Run

9 mi

Summit Grays and Torreys Peaks in this 8.8 mile Colorado endurance event. Participants must carry a 20lb dry load while tackling 4,101 feet of elevation gain.

Saturday Aug 22

Byers Peak Stampede Half Marathon

Winter Park

5 km

13 mi

Trail-based chip timed half marathon and 5K near Fraser, Colorado, on unpaved roads and trails, with aid stations and proceeds supporting the Shining Stars Foundation.

Saturday Aug 29

Run Like the Wind 5K - Allenspark

Allenspark

2 km

5 km

Run Like the Wind in Allenspark on August 29, 2026 features a 5K race, a 2K run/walk and a dog jog option. Proceeds benefit The Old Gallery and participating dogs are entered in an amateur dog show.