Upcoming 10K Races Near Windsor, CO

All-Out Mardi Crawl

Arvada, CO

Saturday, February 22nd, 2025

Six Pack Series Winter Westminster 5k and 10k

Westminster, CO

Saturday, February 22nd, 2025

Time to Paddy 5k/10k & Lucky 13.1 - Denver

Denver, CO

Saturday, March 1st, 2025

Lucky Brew Race 5K, 10K, and 15K

Windsor, CO

Sunday, March 16th, 2025

Spring Fling Prairie Dog Half, 10k, & 5k

Arvada, CO

Sunday, April 13th, 2025

All-Out Beat the Heat

Westminster, CO

Saturday, April 19th, 2025

Great Western Trail Race

Severance, CO

Saturday, April 19th, 2025

NoCo Half Marathon & 10K

Loveland, CO

Sunday, April 27th, 2025

The Colorado Marathon

Fort Collins, CO

Sunday, May 4th, 2025

DoNot Stop Half Marathon (5k/10k) - Denver

Denver, CO

Saturday, May 10th, 2025

Colorado Women's Classic - Westminster

Westminster, CO

Sunday, May 11th, 2025

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

Louisville, CO

Sunday, June 1st, 2025

All-Out Summer Breeze

Arvada, CO

Saturday, June 7th, 2025

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

Arvada, CO

Sunday, June 15th, 2025

Hometown Half Marathon & 5k/10k - Denver

Westminster, CO

Saturday, June 21st, 2025

Hometown Half Marathon & 5k/10k - Denver

Denver, CO

Saturday, June 21st, 2025

Red, White and Brew 5k, 10k, Half Marathon & 12...

Windsor, CO

Saturday, June 21st, 2025

Let Freedom Run 5k/10k

Louisville, CO

Friday, July 4th, 2025

All-Out Dog Days

Westminster, CO

Saturday, July 12th, 2025

All-Out Runapalooza

Arvada, CO

Saturday, August 2nd, 2025

Summer Sizzler- Denver

Denver, CO

Saturday, August 16th, 2025

RMRR September Trophy Series

Thornton, CO

Sunday, September 7th, 2025

All-Out Fall Fest

Westminster, CO

Saturday, September 13th, 2025

Spooky Sprint - Denver

Denver, CO

Sunday, September 14th, 2025

Move Forward 5K & 10K

Denver, CO

Saturday, September 20th, 2025

Pioneer Prairie Dog Half, 10k & 5k

Westminster, CO

Saturday, September 27th, 2025

Not So Flatt Breast Cancer Awareness Run/Walk

Westminster, CO

Saturday, October 4th, 2025

Windsor Marathon, Half Marathon, 10k & 5k

Windsor, CO

Sunday, October 5th, 2025

The bRUNch Run™

Denver, CO

Sunday, October 12th, 2025

City Park 5k/10k & 1 Mile Walk of Hope for Panc...

Denver, CO

Saturday, November 1st, 2025

Turkey Trails- Denver

Denver, CO

Sunday, November 2nd, 2025

Denver Veterans Day Run

Denver, CO

Saturday, November 8th, 2025

Pumpkin Pie 5K/10K

Denver, CO

Saturday, November 15th, 2025

10k Turkey Trek & 5k Turkey Trot

Arvada, CO

Saturday, November 22nd, 2025

Broomfield Turkey Day 5K/10K

Broomfield, CO

Thursday, November 27th, 2025

All-Out Fa La La

Westminster, CO

Saturday, December 6th, 2025

Santa Catch 5k & 10k

Windsor, CO

Saturday, December 13th, 2025

All-Out Polar Prowl

Arvada, CO

Saturday, January 10th, 2026