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AdventHealth Race to Rebuild
Lone Tree, CO
Wednesday, May 20th, 2026
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8th Annual Angel Run at Red Leg Brewing
Colorado Springs, CO
Friday, May 22nd, 2026
GMR Backyard Ultra
Golden, CO
Saturday, May 23rd, 2026
Farish Trail Race
Woodland Park, CO
Mile High Mile
Boulder, CO
Race Day Support Add-On
Wednesday, May 27th, 2026
Brooks Mile High Mile
Denver, CO
Saturday, May 30th, 2026
Evergreen Trail Race Series
Evergreen, CO
The Big Run Presented By Brooks
Wednesday, June 3rd, 2026
Global Running Day with Altra & Runners Roost
The Barmen Mile
Arvada, CO
Nielson Challenge
Saturday, June 6th, 2026
Aiden's Adventure 5k
Colorado 13er (Half Marathon/10k/5k)
Louisville, CO
Sunday, June 7th, 2026
Flamingo Day 5K
RMRR June Trophy Series
The Big Run Presented by Brooks
DU Dash Colorado
Palmer Lake, CO
Sweat & Snack Community Run + Episode 1 Gel Pre...
Tuesday, June 9th, 2026
Treat Trot Denver
Saturday, June 13th, 2026
Treat Trot - Denver
Thornton, CO
Holy Hammers Hustle for Habitat
Parker, CO
Stepping Stone 5K
Littleton, CO
Tutu Dash 5K
Broomfield, CO
All-Out Summer Breeze
The Springs Downhill Mile
The Bullfrog Splashdown
Sunday, June 14th, 2026
Garden of the Gods 10 Mile/10K and Trail Run
Treat Trot Colorado Springs
Garden of the Gods Little Horn and Big Horn Kid...
HRCA Happy Hour Half K
Friday, June 19th, 2026
Unicorn 5k (North)
Saturday, June 20th, 2026
Fatherhood 5k Family Run/Walk
Muddy Dash | Denver 2026
Dacono, CO
Parker Parks and Recreation
14th Annual Buffs4Life Kyle MacIntosh Memorial ...
Sunday, June 21st, 2026
Father's Day Classic 10k, 5k, & 1 Mile
Juneteenth Fun Run 5K
Sunset Trail Running Festival
The Red Schoolhouse Run
Tuesday, June 23rd, 2026
Pearl Street Mile
Saturday, June 27th, 2026
Fitness Expo On Tap at the Colorado Tap House
Denver Pride 5K
Before The Fourth 5k
Blue Sky Ascent & Round Trip (formerly the Mt. ...
Idaho Springs, CO
Sunday, June 28th, 2026
Cade’s Cause: Concussion & CTE Awareness Run/Walk
HRCA Independence Day 5K
Saturday, July 4th, 2026
Avery Brewing Co. 4K on the 4th
4 Miles on the 4th
Let Freedom Run 5k - LONGMONT
Longmont, CO
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