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Labor Day Half Marathon
Parker, CO
Monday, September 1st, 2025
All-Out Fall Fest
Westminster, CO
Saturday, September 13th, 2025
National Chocolate Day: Run for Chocolates DENV...
Centennial, CO
Spooky Sprint - Denver
Littleton, CO
Sunday, September 14th, 2025
Denver, CO
National Coffee Day: Run for Coffee DENVER/AURORA
Saturday, September 27th, 2025
Pioneer Prairie Dog Half, 10k & 5k
National Singles Day: Singles & Friends Running...
Layafette Music Fest Half-Marathon/10K/5K
Louisville, CO
Sunday, October 5th, 2025
Westy Half & 5k
Sunday, October 12th, 2025
All-Out Kooky-Spooky
Golden, CO
Sunday, November 2nd, 2025
HRCA Backcountry Wilderness Half Marathon
Lone Tree, CO
Saturday, November 8th, 2025
10k Turkey Trek & 5k Turkey Trot - Now With HAL...
Arvada, CO
Saturday, November 22nd, 2025
All-Out Fa La La
Saturday, December 6th, 2025
All-Out Polar Prowl
Saturday, January 10th, 2026
Arctic Prairie Dog Half, 10k & 5k
Sunday, January 18th, 2026
All-Out Mardi Crawl
Sunday, February 22nd, 2026
All-Out Spring Fever
Sunday, March 22nd, 2026
Platte River Half-Marathon and Relay
Sunday, April 12th, 2026
Spring Fling Prairie Dog Half, 10k, & 5k
All-Out Beat the Heat
Saturday, April 18th, 2026
Runs With Scissors Races
Brighton, CO
Saturday, April 25th, 2026
Longmont Half & 5k (LM Half)
Longmont, CO
Sunday, May 3rd, 2026
Colorado 13er (Half Marathon/10k/5k)
Sunday, June 7th, 2026
All-Out Summer Breeze
Saturday, June 13th, 2026
All-Out Dog Days
Saturday, July 11th, 2026
Summer Splash Prairie Dog Half, 10k, & 5k
Castle Rock, CO
Saturday, July 18th, 2026
Erie Half & 5k
Erie, CO
Sunday, August 16th, 2026
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