Upcoming Half Marathon Races Near Severance, CO

All-Out Fa La La

Westminster, CO

Saturday, December 6th, 2025

Featured

Half

10K

5K

Trail

View details for race All-Out Fa La La

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Arctic Prairie Dog 10k & 5k

Louisville, CO

Sunday, January 18th, 2026

Half

10K

5K

View details for race Arctic Prairie Dog 10k & 5k

Lucky Brew Race 5K, 10K, 15k & Half Marathon

Severance, CO

Saturday, March 14th, 2026

5K

10K

15K

View details for race Lucky Brew Race 5K, 10K, 15k & Half Marathon

Prairie Dog Run Series

Louisville, CO

Sunday, April 12th, 2026

Half

View details for race Prairie Dog Run Series

Great Western Trail Race

Severance, CO

Saturday, April 18th, 2026

5K

10K

Half

Trail

Fast

View details for race Great Western Trail Race

All-Out Beat the Heat

Westminster, CO

Saturday, April 18th, 2026

Half

10K

5K

Trail

View details for race All-Out Beat the Heat

Horsetooth Half Marathon

Fort Collins, CO

Sunday, April 19th, 2026

Half

Trail

Fast

View details for race Horsetooth Half Marathon

Runs With Scissors Races

Brighton, CO

Saturday, April 25th, 2026

Half

Marathon

Ultra

View details for race Runs With Scissors Races

Bigfoot Half Marathon

Estes Park, CO

Saturday, April 25th, 2026

Half

5K

View details for race Bigfoot Half Marathon

Longmont Half & 5k (LM Half)

Longmont, CO

Sunday, May 3rd, 2026

Half

5K

View details for race Longmont Half & 5k (LM Half)

The Colorado Marathon

Fort Collins, CO

Sunday, May 3rd, 2026

Marathon

Half

10K

View details for race The Colorado Marathon

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

Louisville, CO

Sunday, June 7th, 2026

Half

10K

5K

Trail

View details for race Colorado 13er (Half Marathon/10k/5k)

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

Windsor, CO

Saturday, June 20th, 2026

5K

10K

Half

View details for race Red, White and Brew 5k, 10k, Half Marathon & 12 Hour Last Person Standing

All-Out Dog Days

Westminster, CO

Saturday, July 11th, 2026

Half

10K

5K

Trail

View details for race All-Out Dog Days

Erie Half & 5k

Erie, CO

Sunday, August 16th, 2026

Half

5K

View details for race Erie Half & 5k

Pioneer Prairie Dog Half, 10k & 5k

Westminster, CO

Sunday, August 23rd, 2026

Half

10K

5K

View details for race Pioneer Prairie Dog Half, 10k & 5k

All-Out Fall Fest

Westminster, CO

Saturday, September 19th, 2026

Half

10K

5K

Trail

View details for race All-Out Fall Fest

Windsor Marathon, Half Marathon, 10k, 5k & 1 Mi...

Windsor, CO

Sunday, October 4th, 2026

Marathon

Half

10K

Trail

View details for race Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile Run

Westy Half & 5k

Westminster, CO

Sunday, October 11th, 2026

Half

5K

View details for race Westy Half & 5k

Explore more in Severance, CO

Distances:

5K 10K Half Marathon Marathon

Months:

November December January

Tags:

Trail Boston Qualifiers Fast Courses

State:

All Colorado races

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