Colorado

Colorado Race Calendar — Running Events

(As of Thursday, April 03, 2025) Print VersionPrint  For event listing corrections, please contact us.
Date Event Location
Sat., 4/5/25
8:15 AM
Cayson Pearson Memorial 5k Run/Walk
5K Run
Green Mountain High School
Lakewood, CO
Sat., 4/5/25
Imperial Challenge
Run
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Breckenridge Recreation Center
Breckenridge, CO
Sun., 4/6/25
9:00 AM
Donut Dash
5K Run
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Washington Park
Denver, CO
Sat., 4/12/25
8:00 AM
Run Through The Decades 6K/7K/8K/Half – Colorado Springs
6K Run, 7K Run, 8K Run, Half Marathon Run
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Cottonwood Creek Park
Colorado Springs, CO
Sun., 4/13/25
Horsetooth Half Marathon
Run
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New Belgium Brewery
Fort Collins, CO
Sun., 4/13/25
8:00 AM
Horsetooth Half Marathon
Half Marathon Run
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Holiday Twin Drive In
Fort Collins, CO
Sun., 4/13/25
8:00 AM
Three Creeks Half Marathon
Half Marathon Run
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Englewood, CO
Sat., 4/19/25
7:00 AM
Great Western Trail Race
5K Run, 10K Run, Half Marathon Run
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Severance, CO
Sun., 4/27/25
7:00 AM
NoCo Half Marathon & 10K
Half Marathon Run, 10K Run
Boyd Lake State Park
Loveland, CO
Sun., 4/27/25
9:00 AM
Unicorn 5k (Denver – East)
5K Run
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Great Lawn Park
Denver, CO
Sat., 5/3/25
Bob Turner Classic 5k Run/Walk
Run
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Turner Middle School
Berthoud, CO
Sat., 5/10/25
4:00 PM
Colterris Wine Run 5k
5K Run
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Colterris Winery
Palisade, CO
Sat., 5/10/25
5:30 AM
Quad Rock 50/25mi
50 Mile Run, 25 Mile Run
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Lory State Park
Fort Collins, CO
Sat., 5/10/25
Quad Rock 50/25mi
Run
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Lory State Park
Bellvue, CO
Sun., 5/11/25
8:00 AM
Colorado Women's Classic
10 Mile Run, 5K Run, 10K Run
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Westminster Promenade Terrace
Westminster, CO
Fri., 5/23/25
12:00 PM
Weld Your Mettle Running Festival
7K Run, 3, 6, 9, 12, 24, 48 Hour Loop Race Run
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Woodland Home Marketplace
Eaton, CO
Sat., 5/31/25
Basalt Half Marathon & Relay
Run
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Basalt Middle School
Basalt, CO
Sat., 6/21/25
7:00 AM
Red, White, and Brew - 5k, 10k, 1/2 Marathon, 12 Hour "Last Person Standing"
5K Run, 10K Run, Half Marathon Run, 12 Hour Last Person Standing Run
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Hoedown Hill
Windsor, CO
Sat., 6/21/25
8:00 AM
Unicorn 5k (North)
5K Run
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Carpenter Park
Thornton, CO
Sat., 6/28/25
7:00 AM
Timberview Trail Run
10 Mile Run, 5 Mle Run, 5K Run
Lory State Park
Bellvue, CO
Fri., 7/25/25
5:30 AM
Never Summer 100k/60k
100K Run, 60K Run
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State Forest State Park
Gould, CO
Fri., 8/1/25
5:00 AM
Wild West Relay
200 Mile Point to Point Run
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Fort Collins, CO
Sat., 8/2/25
8:00 AM
Unicorn 5k (South)
5K Run
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Highlands Heritage Regional Park
Highlands Ranch, CO
Sun., 8/3/25
6:30 AM
I'm Bound for Boston Marathon & Half Marathon – Denver
Marathon Run, Half Marathon Run
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Northfield High School
Denver, CO
Tue., 8/5/25
6:00 PM
Lory Summer Trail Series – Eltuck Valley 5k
5K Run
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Lory State Park
Bellvue, CO
Tue., 8/12/25
6:00 PM
Lory Summer Trail Series – Into the Hills Eltuck 10k
10K Run
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Lory State Park
Bellvue, CO
Tue., 8/19/25
6:00 PM
Lory Summer Trail Series – Into the Hills Eltuck 5k
5K Run
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Lory State Park
Bellvue, CO
Fri., 8/22/25
12:00 PM
NoCo Urban Ultra and Relay
50 Mile Run (Start in Bellvue), 50 Mile Relay Run (Start in Bellvue), 100 Mile Run, 100 Mile Relay Run
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Greeley Stampede
Greeley, CO
Sat., 8/23/25
7:00 AM
Staunton Rocks! Marathon & Half
Marathon Run, Half Marathon Run
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Staunton State Park
Pine, CO
Sun., 8/24/25
9:15 AM
Unicorn Festival 5k
5K Run
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Arapahoe Fairgrounds
Aurora, CO
Tue., 8/26/25
6:00 PM
Lory Summer Trail Series – Eltuck Valley 12K
12K Run
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Lory State Park
Bellvue, CO
Sun., 8/31/25
10:00 AM
Wine Run 5k at The Winery at Holy Cross Abbey
5K Run
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The Winery At Holy Cross Abbey
Canon City, CO
Fri., 9/5/25
5:00 AM
Flaming Foliage Relay – Idaho Springs to Buena Vista
165 Mile Relay Run
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River Park Pavilion
Buena Vista, CO
Sat., 9/6/25
7:00 AM
Black Squirrel Half Marathon
Half Marathon (13.5 Mile) Run
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Lory State Park
Fort Collins, CO
Fri., 9/26/25
6:00 AM
Red Feather Trail Jamboree
50 Mile Run, 50K Run, Half Marathon Run
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Ben Delatour Scout Ranch
Red Feather Lakes, CO
Sun., 10/5/25
7:00 AM
Windsor Marathon, Half Marathon, 10K & 5K
Half Marathon Run, 10K Run, 5K Run
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The Island at Pelican Lakes
Windsor, CO
Sat., 10/11/25
7:30 AM
Long View Marathon & Half Marathon
Marathon Run, Half Marathon Run
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Edora Park
Fort Collins, CO
Sat., 10/18/25
7:00 AM
Blue Sky Marathon & Half
Marathon (26.7 Mile) Run, Half Marathon (13.3 Mile) Run
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Blue Sky Trailhead
Fort Collins, CO
Sat., 10/18/25
9:00 AM
The Great Trailhead Footrace
10 Mile Run, 5 Mile Run
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Bear Creek Lake Park - Pelican Picnic Shelters
Lakewood, CO
Sun., 10/26/25
8:30 AM
Narrowleaf Lake Run
15K Run, 10K Run, 5K Run
Boyd Lake State Park
Loveland, CO
Sat., 11/1/25
9:00 AM
City Park 5k & 1 Mile Walk of Hope for Pancreatic Cancer Research
5K Run, 1 Mile Run
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City Park
Denver, CO
Sat., 11/1/25
8:00 AM
Colorado 24 Hour Run
24 Hour Run, 12 Hour Run, 6 Hour Run, Relay (24, 12, 6 hour) Run
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Colorado Youth Outdoors
Fort Collins, CO
Thu., 11/27/25
9:00 AM
Pelican Lakes Turkey Trot
5K Run, 5K Walk
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Pelican Lakes Resort & Golf
Windsor, CO
Sat., 12/13/25
8:00 AM
Santa Catch 5k and 10k
5K Run, 10K Run, Kid's Fun Run
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NOCO Sports Center
Windsor, CO
Wed., 12/31/25
6:00 PM
Resolution Run 5K
5K Run
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Edora Pool Ice Center (EPIC)
Fort Collins, CO
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