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Berthoud Day 5K
Berthoud, CO
Saturday, June 6th, 2026
The Big Run Presented by Brooks
Denver, CO
Sunday, June 7th, 2026
Colorado 13er (Half Marathon/10k/5k)
Louisville, CO
Flamingo Day 5K
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DU Dash Colorado
Palmer Lake, CO
Sweat & Snack Community Run + Episode 1 Gel Pre...
Boulder, CO
Tuesday, June 9th, 2026
Holy Hammers Hustle for Habitat
Parker, CO
Saturday, June 13th, 2026
Treat Trot Denver
Thornton, CO
All-Out Summer Breeze
Arvada, CO
Stepping Stone 5K
Littleton, CO
Tutu Dash 5K
Broomfield, CO
The Bullfrog Splashdown
Sunday, June 14th, 2026
Unicorn 5k (North)
Saturday, June 20th, 2026
Parker Parks and Recreation
Muddy Dash | Denver 2026
Dacono, CO
Sunset Trail Running Festival
Sunday, June 21st, 2026
14th Annual Buffs4Life Kyle MacIntosh Memorial ...
VIRTUAL 14th Annual Buffs4Life Kyle MacIntosh M...
Father's Day Classic 10k, 5k, & 1 Mile
Juneteenth Fun Run 5K
The Red Schoolhouse Run
Tuesday, June 23rd, 2026
The Four Legged 5k
Bailey, CO
Friday, June 26th, 2026
Before The Fourth 5k
Saturday, June 27th, 2026
Denver Pride 5K
Fitness Expo On Tap at the Colorado Tap House
Firework Color Run
HRCA Independence Day 5K
Saturday, July 4th, 2026
Let Freedom Run 5k - LONGMONT
Longmont, CO
6th Annual July 4th ROCK-IT RUN
Castle Rock, CO
Let Freedom Run 5k/10k - Louisville
BRR All-Comers Summer Track & Field Series #3
Thursday, July 9th, 2026
Heatwave Half Marathon - Denver
Saturday, July 11th, 2026
DRMABPsi 1–5K Walk, Run & Roll
Cookie Chase
All-Out Dog Days
Westminster, CO
Diplo's Run Club Denver
Sunday, July 12th, 2026
Heritage Eagles 5K
Saturday, July 18th, 2026
Summer Splash Prairie Dog Half, 10k, & 5k
CU Anschutz Run Club 5K
Aurora, CO
The Hero's Journey 5K
Saturday, July 25th, 2026
Spirit of the West 5K Run/Walk
Golden, CO
Sunday, July 26th, 2026
Unicorn 5k (South)
Highlands Ranch, CO
Saturday, August 1st, 2026
12th Annual Run for the Ring
Move with MADD Denver 5k and Walk
RMRR August Trophy Series
Centennial, CO
Friday, August 7th, 2026
Summer Sizzler- Denver
Saturday, August 8th, 2026
Arapahoe Warrior 5K
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