Upcoming Races Near Boulder, CO

Name: Denver Pride 5K
Start: 2026-06-27
End: 2026-06-27
Location: Denver

Know. Grow. GO RUN. 5K

Loveland, CO

Friday, May 15th, 2026

Featured

Trail

View details for race Know. Grow. GO RUN. 5K

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Girls on the Run 5K at Colfax - Running Buddies...

Denver, CO

Saturday, May 16th, 2026

View details for race Girls on the Run 5K at Colfax - Running Buddies and Volunteers

Gluten Free Gallop 5K

Littleton, CO

Saturday, May 16th, 2026

View details for race Gluten Free Gallop 5K

Growing Home - Colfax Fundraiser

Denver, CO

Saturday, May 16th, 2026

View details for race Growing Home - Colfax Fundraiser

Girls on the Run Rockies Colfax SoleMates 2026

Denver, CO

Sunday, May 17th, 2026

Marathon

Half

View details for race Girls on the Run Rockies Colfax SoleMates 2026

Miles for Smiles 5K

Arvada, CO

Sunday, May 17th, 2026

Trail

View details for race Miles for Smiles 5K

Healing Warriors Program 2026 Annual 5K Fun Run

Fort Collins, CO

Sunday, May 17th, 2026

View details for race Healing Warriors Program 2026 Annual 5K Fun Run

Canine On the Creek

Dumont, CO

Sunday, May 17th, 2026

1 Mile

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AdventHealth Race to Rebuild

Lone Tree, CO

Wednesday, May 20th, 2026

1 Mile

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Mile High Mile

Boulder, CO

Saturday, May 23rd, 2026

1 Mile

View details for race Mile High Mile

GMR Backyard Ultra

Golden, CO

Saturday, May 23rd, 2026

View details for race GMR Backyard Ultra

Youth TNT Program

Fort Collins, CO

Tuesday, May 26th, 2026

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Race Day Support Add-On

Boulder, CO

Wednesday, May 27th, 2026

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Dash4Hope 2026

Greeley, CO

Saturday, May 30th, 2026

View details for race Dash4Hope 2026

Weld Your Mettle Running Festival

Eaton, CO

Saturday, May 30th, 2026

Ultra

Marathon

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Evergreen Trail Race Series

Evergreen, CO

Saturday, May 30th, 2026

Trail

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The Barmen Mile

Arvada, CO

Wednesday, June 3rd, 2026

1 Mile

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Global Running Day with Altra

Denver, CO

Wednesday, June 3rd, 2026

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Berthoud Day 5K

Berthoud, CO

Saturday, June 6th, 2026

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StepUp For Women And Recovery

Fort Collins, CO

Saturday, June 6th, 2026

View details for race StepUp For Women And Recovery

J-Town Jog 5K and Kids 1 Mile Dash

Johnstown, CO

Saturday, June 6th, 2026

1 Mile

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Summits Trail Runs

Granby, CO

Saturday, June 6th, 2026

1 Mile

Trail

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The Big Run Presented by Brooks

Denver, CO

Sunday, June 7th, 2026

View details for race The Big Run Presented by Brooks

Crazy Legs 10k+ Trail Run

Loveland, CO

Sunday, June 7th, 2026

10K

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RMRR June Trophy Series

Denver, CO

Sunday, June 7th, 2026

Fast

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Colorado 13er (Half Marathon/10k/5k)

Louisville, CO

Sunday, June 7th, 2026

Half

10K

Trail

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Flamingo Day 5K

Denver, CO

Sunday, June 7th, 2026

View details for race Flamingo Day 5K

Treat Trot Denver

Thornton, CO

Saturday, June 13th, 2026

10K

15K

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All-Out Summer Breeze

Arvada, CO

Saturday, June 13th, 2026

Half

10K

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Holy Hammers Hustle for Habitat

Parker, CO

Saturday, June 13th, 2026

View details for race Holy Hammers Hustle for Habitat

Stepping Stone 5K

Littleton, CO

Saturday, June 13th, 2026

View details for race Stepping Stone 5K

Treat Trot Denver

Denver, CO

Saturday, June 13th, 2026

10K

15K

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Guardian Games

Loveland, CO

Saturday, June 13th, 2026

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Tutu Dash 5K

Broomfield, CO

Saturday, June 13th, 2026

1 Mile

Trail

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The Bullfrog Splashdown

Littleton, CO

Sunday, June 14th, 2026

10K

1 Mile

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HRCA Happy Hour Half K

Littleton, CO

Friday, June 19th, 2026

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Sierra's 5K Run/Walk Race Against Meningitis

Loveland, CO

Saturday, June 20th, 2026

View details for race Sierra's 5K Run/Walk Race Against Meningitis

Muddy Dash | Denver 2026

Dacono, CO

Saturday, June 20th, 2026

View details for race Muddy Dash | Denver 2026

Parker Parks and Recreation

Parker, CO

Saturday, June 20th, 2026

View details for race Parker Parks and Recreation

Unicorn 5k (North)

Thornton, CO

Saturday, June 20th, 2026

View details for race Unicorn 5k (North)

Red, White and Brew 5k, 10k & Half Marathon

Windsor, CO

Saturday, June 20th, 2026

10K

Half

View details for race Red, White and Brew 5k, 10k & Half Marathon

Juneteenth Fun Run 5K

Denver, CO

Sunday, June 21st, 2026

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Sunset Trail Running Festival

Boulder, CO

Sunday, June 21st, 2026

12K

Trail

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14th Annual Buffs4Life Kyle MacIntosh Memorial ...

Boulder, CO

Sunday, June 21st, 2026

View details for race 14th Annual Buffs4Life Kyle MacIntosh Memorial 5K Run/Walk

Father's Day Classic 10k, 5k, & 1 Mile

Arvada, CO

Sunday, June 21st, 2026

10K

1 Mile

View details for race Father's Day Classic 10k, 5k, & 1 Mile

The Red Schoolhouse Run

Louisville, CO

Tuesday, June 23rd, 2026

View details for race The Red Schoolhouse Run

Fitness Expo On Tap at the Colorado Tap House

Arvada, CO

Saturday, June 27th, 2026

1 Mile

View details for race Fitness Expo On Tap at the Colorado Tap House

Pearl Street Mile

Boulder, CO

Saturday, June 27th, 2026

1 Mile

View details for race Pearl Street Mile

Timberview Trail Run

Bellvue, CO

Saturday, June 27th, 2026

Trail

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Denver Pride 5K

Denver, CO

Saturday, June 27th, 2026

View details for race Denver Pride 5K

Explore more in Boulder, CO

Distances:

5K 10K Half Marathon Marathon

Months:

May June July

Tags:

Trail Boston Qualifiers Fast Courses

State:

All Colorado races

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