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Calarat Challenge Trail Running Festival
Jamestown, CO
Saturday, August 30th, 2025
Orangetheory 5k at Labor Day Lift Off
Colorado Springs, CO
Sunday, August 31st, 2025
Wine Run 5k at The Winery at Holy Cross Abbey
Canon City, CO
Labor Day Half Marathon
Parker, CO
Monday, September 1st, 2025
Oak Creek No Fun Run
Oak Creek, CO
3rd Annual Roost Rebellion Relays
Denver, CO
Wednesday, September 3rd, 2025
RexRun For PAWSitivity 2025 5K Trail Run/Walk
Aurora, CO
Saturday, September 6th, 2025
Flyin' Lion 5K
Littleton, CO
Sunday, September 7th, 2025
Denver Rocks Run 5K/10K
Conservation Colorado 5k
RMRR September Trophy Series
Thornton, CO
Rebel Run 5k
National Chocolate Day: Run for Chocolates DENV...
Centennial, CO
Saturday, September 13th, 2025
Historic Elizabeth Main Street 5K & Family Colo...
Elizabeth, CO
The Denver 5k
Spooky Sprint - Colorado Springs
Break Your Neck: Walk, Run, or Roll
Pueblo, CO
2024 Spirit of the Valley 5k
Grand Junction, CO
Highland Homecoming 5k Run & Walk
Ault, CO
Parker Parks and Recreation So Long to Summer 5...
All-Out Fall Fest
Westminster, CO
Muddy Dash | Denver
Dacono, CO
Spooky Sprint - Denver
Sunday, September 14th, 2025
9/11 Heroes Run - Denver, Colorado
Move Forward 5K & 10K
Saturday, September 20th, 2025
13th Annual Superhero Event
Greeley, CO
Denver: Walk With Autism and Resource Fair
Miles 4 Madison 5K & 1K
2025 ColorFest Color Run/Walk 5K
Pagosa Springs, CO
Rim to Rim Royal Gorge Races: 5K Road Run, Trai...
2025 Montbello Alive! 5K
Autumn Run
Buena Vista, CO
19th Annual Golden Gallop
Golden, CO
Sunday, September 21st, 2025
Farmers 5000
Wheat Ridge, CO
Tiger Prowl 5K
Mesa County Search & Rescue 5K
Fruita, CO
Saturday, September 27th, 2025
Pagosa Mountain Chile Cha Cha Trail Races
Race in the Clouds - Festival 5K
Alma, CO
Pioneer Prairie Dog Half, 10k & 5k
Lisa Nelson’s Mustang Stampede 5K
Arvada, CO
Bayfield Heritage Days 5k
Bayfield, CO
McGinn Memorial Cross Country Challenge
National Singles Day: Singles & Friends Running...
National Coffee Day: Run for Coffee DENVER/AURORA
Runway 5K - Run for the Angels
Broomfield, CO
Rising Phoenix Festival & 5K
Loveland, CO
WWE ANNUAL RUN WITH THE WOLVES
Sunday, September 28th, 2025
14er Fest 14K & 5K
Flyin' Ryan Memorial 5k
Friday, October 3rd, 2025
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