drag and zoom the map
Next week
7SAT
23
MAY
Mile High Mile
Boulder, US
SAT
23
MAY
GMR Backyard Ultra
Golden, US
SAT
23
MAY
Samson's Revenge
Estes Park, US
SAT
23
MAY
Memorial Day Run 5K/10K/13.1
Centennial, US
SAT
23
MAY
Memorial Day Run 5K/10K/13.1 DENVER/AURORA
Centennial, US
SAT
23
MAY
Run for Mental Health 5K/10K/13.1 DENVER/AURORA
Centennial, US
SAT
23
MAY
Farish Trail Race
Woodland Park, US
This month
8SUN
24
MAY
Wyoming Marathon Races
Laramie, US
SUN
24
MAY
2026 CKF Cape Town Marathon
Aspen, US
MON
25
MAY
BOLDERBoulder by Runners Roost
Boulder, US
MON
25
MAY
8th Annual Angel Run at Red Leg Brewing
Colorado Springs, US
MON
25
MAY
Angel Run at Red Leg Brewing
Colorado Springs, US
MON
25
MAY
Smiles For Miles Memorial Day Fun Run
Pueblo, US
MON
25
MAY
Smiles for Miles Memorial Day Fun Run - Sponsored by Dignity Memorial - Supporting Operation School Bell
Pueblo, US
FRI
29
MAY
Bolder BOULDER 10K
Boulder, US
Mile High Mile
Saturday, May 23, 2026 · Boulder, United States
Distances
1.6km
Start location
About this race
This season features a new, more accessible, flexible, and fun format. Run a mile with your crew or chase a PR. Community miles offer a low-pressure, high-fun environment. As the sun sets, competitive heats heat up with a true track meet atmosphere and the fastest mile racing in Colorado. Designed for first-timers, families, and serious racers, with community energy early leading to an electric racing atmosphere late.