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AdventHealth Race to Rebuild
Lone Tree, CO
Wednesday, May 20th, 2026
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Farish Trail Race
Woodland Park, CO
Saturday, May 23rd, 2026
GMR Backyard Ultra
Golden, CO
Mile High Mile
Boulder, CO
Race Day Support Add-On
Wednesday, May 27th, 2026
Evergreen Trail Race Series
Evergreen, CO
Saturday, May 30th, 2026
Brooks Mile High Mile
Denver, CO
Global Running Day with Altra & Runners Roost
Wednesday, June 3rd, 2026
The Barmen Mile
Arvada, CO
RMRR June Trophy Series
Sunday, June 7th, 2026
Flamingo Day 5K
The Big Run Presented by Brooks
Colorado 13er (Half Marathon/10k/5k)
Louisville, CO
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
Holy Hammers Hustle for Habitat
Parker, CO
Stepping Stone 5K
Littleton, CO
All-Out Summer Breeze
Thornton, CO
Tutu Dash 5K
Broomfield, CO
The Bullfrog Splashdown
Sunday, June 14th, 2026
HRCA Happy Hour Half K
Friday, June 19th, 2026
Unicorn 5k (North)
Saturday, June 20th, 2026
Parker Parks and Recreation
Muddy Dash | Denver 2026
Dacono, CO
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
Before The Fourth 5k
Denver Pride 5K
Cade’s Cause: Concussion & CTE Awareness Run/Walk
Sunday, June 28th, 2026
Blue Sky Ascent & Round Trip (formerly the Mt. ...
Idaho Springs, CO
Avery Brewing Co. 4K on the 4th
Saturday, July 4th, 2026
Let Freedom Run 5k - LONGMONT
Longmont, CO
Palmer Lake July 4th Fun Run
Let Freedom Run 5k/10k - Louisville
4th of July Donut Hole Mile
HRCA Independence Day 5K
BRR All-Comers Summer Track & Field Series #3
Thursday, July 9th, 2026
Cookie Chase
Saturday, July 11th, 2026
DRMABPsi 1–5K Walk, Run & Roll
All-Out Dog Days
Westminster, CO
Heatwave Half Marathon - Denver
Diplo's Run Club Denver
Sunday, July 12th, 2026
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