Longmont's only Half Marathon - now offered in the cooler month of MAY! Join the Half Marathon or 5k distance! Walkers and Runners of all abilities welcome!
May 03, 2026
Distance — 13.1 Miles
Type — Running
07:30
$60.00
May 03, 2026
Distance — 5K
Type — Running
08:30
$35.00
These values represent the 3-year monthly averages for May in Longmont.
Longmont is a city of about 100,000 in North Central Colorado. The city lies in Boulder and Weld counties 30 miles (48 km) north-northwest of the Denver.
Read more launchExplore other exciting events happening in this same region.
location_on Longmont, Colorado, US
calendar_today May 02, 2026
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