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WinterFest 5k & Fun Run
Thornton, CO
Saturday, December 13th, 2025
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Superior Stocking Run
Superior, CO
2025 Jingle Bell Run - Colorado
Denver, CO
Sunday, December 14th, 2025
Santa's Dash for Ca$h
Saturday, December 20th, 2025
Ugly Sweater 5K
Sunday, December 21st, 2025
Candy Cane Course - Denver
Saturday, December 27th, 2025
Westminster, CO
Resolute Runner 5k
Arvada, CO
Thursday, January 1st, 2026
Sentinel Flurry
Golden, CO
Saturday, January 10th, 2026
All-Out Polar Prowl
Colorado Cold Rush
Louisville, CO
Sunday, January 18th, 2026
Arctic Prairie Dog 10k & 5k
Freakin Freezin 5K - Denver
Sunday, January 25th, 2026
Westy Winter Waggle 5&10k
Saturday, February 7th, 2026
Heart Throb 5k
Saturday, February 14th, 2026
Ralston Creek Half Marathon & 5k
Sunday, February 15th, 2026
All-Out Mardi Crawl
Sunday, February 22nd, 2026
Time to Paddy 5k/10k & Lucky 13.1 - Denver
Saturday, February 28th, 2026
All-Out Spring Fever
Sunday, March 22nd, 2026
Central Park 5k
Donut Dash
Sunday, April 12th, 2026
Spring Fling Prairie Dog Half, 10k, & 5k
All-Out Beat the Heat
Saturday, April 18th, 2026
Unicorn 5k (Denver-East)
Sunday, April 26th, 2026
Friends of the National Center Science Stride 5K
Boulder, CO
Friday, May 1st, 2026
Longmont Half & 5k (LM Half)
Longmont, CO
Sunday, May 3rd, 2026
Hometown Half Marathon & 5k/10k - Denver
Sunday, May 10th, 2026
Colorado Women's Classic - Westminster
J-Town Jog 5K and Youth Mile
Johnstown, CO
Saturday, June 6th, 2026
Colorado 13er (Half Marathon/10k/5k)
Sunday, June 7th, 2026
Flamingo Day 5K
All-Out Summer Breeze
Saturday, June 13th, 2026
Treat Trot Denver
Unicorn 5k (North)
Saturday, June 20th, 2026
Father's Day Classic 10k, 5k, & 1 Mile
Sunday, June 21st, 2026
Let Freedom Run 5k - LONGMONT
Saturday, July 4th, 2026
Let Freedom Run 5k/10k - Louisville
Heatwave Half Marathon - Denver
Saturday, July 11th, 2026
All-Out Dog Days
Cookie Chase
All-Out Runapalooza
Saturday, August 8th, 2026
Summer Sizzler- Denver
Erie Half & 5k
Erie, CO
Sunday, August 16th, 2026
Ram Run
Saturday, August 22nd, 2026
Pioneer Prairie Dog Half, 10k & 5k
Sunday, August 23rd, 2026
Golden Harvest Half Marathon & 5k/10k - Denver
Saturday, September 5th, 2026
The Denver 5k
Saturday, September 12th, 2026
All-Out Fall Fest
Saturday, September 19th, 2026
I Can 5k
Saturday, October 3rd, 2026
Spooky Sprint - Denver
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