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Volunteer Opportunities - Colorado Runner Events

Below is a list of all events produced by Colorado Runner Events and the various volunteer opportunities available for each.

We appreciate all of our volunteers. Without you, we would not be able to host such well run events. Thank you!

However, if you do sign up for a volunteer position on a race morning, please do not also plan to run the event unless you are signing up for the race set-up shift.

We ask that all volunteers be at least aged 15 on race morning, otherwise they need to have an adult also volunteer with them.

All volunteers receive a free entry into another event produced by Colorado Runner Events, up to a half marathon. You can earn a free entry into the Greenland Trail 50K if you volunteer at two events.

Choose your events

December 21, 2025

Ugly Sweater 5K

Washington Park | Denver, CO

April 12, 2026

Donut Dash 5K

Washington Park | Denver, CO

Opens: Thu January 1, 2026 at 12:00am MST

May 2, 2026

Greenland Trail Race

Greenland Open Space | Larkspur, CO

Opens: Sun February 1, 2026 at 12:00am MST

Flamingo Day 5K

Time: Sunday Mar 1, 2026 12:00am MST - Sunday Jun 7, 2026 Midnight MDT

Sloan's Lake Park | Denver, CO

Opens: Sun March 1, 2026 at 12:00am MST

Cookie Chase 5K

Time: Wednesday Apr 1, 2026 12:00am - Saturday Jul 11, 2026 Midnight MDT

Sloan's Lake Park | Denver, CO

Opens: Wed April 1, 2026 at 12:00am MDT

Labor Day Half Marathon

Time: Monday Jun 1, 2026 12:00am - Monday Sep 7, 2026 Midnight MDT

Salisbury Park | Parker, CO

Opens: Mon June 1, 2026 at 12:00am MDT

Ghosts and Goblins 5K/10K

Time: Saturday Aug 1, 2026 12:00am - Sunday Oct 25, 2026 Midnight MDT

City Park | Denver, CO

Opens: Sat August 1, 2026 at 12:00am MDT

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