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Upcoming Half Marathon Races Near Timnath, CO

Longmont Half & 5k (LM Half)

Longmont, CO

Sunday, May 3rd, 2026

Featured

Half

5K

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

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The Colorado Marathon

Fort Collins, CO

Sunday, May 3rd, 2026

Marathon

Half

10K

BQ

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)

All-Out Summer Breeze

Arvada, CO

Saturday, June 13th, 2026

Half

10K

5K

View details for race All-Out Summer Breeze

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

Choice City Running Festival

Fort Collins, CO

Friday, August 7th, 2026

1 Mile

Half

10K

View details for race Choice City Running Festival

All-Out Runapalooza

Arvada, CO

Saturday, August 8th, 2026

Half

10K

5K

Trail

View details for race All-Out Runapalooza

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

Black Squirrel Half Marathon

Bellvue, CO

Saturday, September 12th, 2026

Half

Trail

View details for race Black Squirrel Half Marathon

All-Out Fall Fest

Westminster, CO

Saturday, September 19th, 2026

Half

10K

5K

Trail

View details for race All-Out Fall Fest

Fall Equinox

Fort Collins, CO

Sunday, September 20th, 2026

Half

Fast

View details for race Fall Equinox

Red Feather Trail Jamboree

Red Feather Lakes, CO

Friday, September 25th, 2026

Ultra

Half

Trail

View details for race Red Feather Trail Jamboree

Running for Children's Rights to Both Parents -...

Boulder, CO

Sunday, September 27th, 2026

Half

5K

10K

View details for race Running for Children's Rights to Both Parents - 9 of 50 Half Marathons in 50 States

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

The Long View Marathon

Fort Collins, CO

Saturday, October 10th, 2026

Marathon

Half

5K

View details for race The Long View Marathon

Westy Half & 5k

Westminster, CO

Sunday, October 11th, 2026

Half

5K

View details for race Westy Half & 5k

TURKEY TREK (13.1, 10k, 5k & 2k)

Arvada, CO

Saturday, November 21st, 2026

Half

10K

5K

View details for race TURKEY TREK (13.1, 10k, 5k & 2k)

All-Out Fa La La

Westminster, CO

Saturday, December 5th, 2026

Half

10K

5K

Trail

View details for race All-Out Fa La La

All-Out Polar Prowl

Arvada, CO

Saturday, January 9th, 2027

Half

10K

5K

Trail

View details for race All-Out Polar Prowl

All-Out Mardi Crawl

Arvada, CO

Saturday, February 6th, 2027

Half

10K

5K

Trail

View details for race All-Out Mardi Crawl

All-Out Beat the Heat

Westminster, CO

Saturday, April 24th, 2027

Half

10K

5K

Trail

View details for race All-Out Beat the Heat

Explore more in Timnath, CO

Distances:

5K 10K Half Marathon Marathon

Months:

Tags:

Trail Boston Qualifiers Fast Courses

State:

All Colorado races

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