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Dash & Dine 5k
Boulder, CO
Tuesday, April 28th, 2026
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Friends of the National Center Science Stride 5K
Friday, May 1st, 2026
9th edition CollaBEERation 5k & Brew Fest Party
Longmont, CO
Saturday, May 2nd, 2026
High Line Canal 5K/10K Run
Centennial, CO
Adams County Foster Care 5K Run/Walk and 1 mile...
Brighton, CO
22nd Annual Bob Turner Classic 5K Run/Walk
Berthoud, CO
The Colorado Marathon
Fort Collins, CO
Sunday, May 3rd, 2026
Frank Shorter Track Classic
Emerge 5K
RMRR May Trophy Series
Denver, CO
Longmont Half & 5k (LM Half)
2026 Altitude Elementary Moose Mudder
Aurora, CO
Dash & Dine 5k #2
Tuesday, May 5th, 2026
HRCA Mother's Day 5K
Highlands Ranch, CO
Saturday, May 9th, 2026
Parker Parks and Recreation
Parker, CO
10th Annual Fort Collin's Mother's Day 5K
Cherry Creek Race for the Watershed 2026
2026 Five Star 5K, Mile of Smiles, and Wellness...
Hometown Half Marathon & 5k/10k - Denver
Sunday, May 10th, 2026
Denver Mother's Day 5K
Colorado Women's Classic - Westminster
Westminster, CO
Littleton, CO
Know. Grow. GO RUN. 5K
Loveland, CO
Friday, May 15th, 2026
Girls on the Run 5K at Colfax - Running Buddies...
Saturday, May 16th, 2026
Gluten Free Gallop 5K
Miles for Smiles 5K
Arvada, CO
Sunday, May 17th, 2026
Healing Warriors Program 2026 Annual 5K Fun Run
Canine On the Creek
Dumont, CO
DRMABPsi 1–5K Walk, Run & Roll
Saturday, May 30th, 2026
Dash4Hope 2026
Greeley, CO
J-Town Jog 5K and Youth Mile
Johnstown, CO
Saturday, June 6th, 2026
Berthoud Day 5K
StepUp For Women And Recovery
Flamingo Day 5K
Sunday, June 7th, 2026
The Big Run Presented by Brooks
Colorado 13er (Half Marathon/10k/5k)
Louisville, CO
Treat Trot - Denver
Thornton, CO
Saturday, June 13th, 2026
Treat Trot Denver
Stepping Stone 5K
Tutu Dash 5K
Broomfield, CO
All-Out Summer Breeze
The Bullfrog Splashdown
Sunday, June 14th, 2026
Sierra's 5K Run/Walk Race Against Meningitis
Saturday, June 20th, 2026
Parker Parks and Recreation Dash Across the Dam...
Muddy Dash | Denver 2026
Dacono, CO
Unicorn 5k (North)
Red, White and Brew 5k, 10k & Half Marathon
Windsor, CO
Sunset Trail Running Festival
Sunday, June 21st, 2026
14th Annual Buffs4Life Kyle MacIntosh Memorial ...
Father's Day Classic 10k, 5k, & 1 Mile
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