Longmont Half & 5k (LM Half)

Rec Center, Longmont CO

Sunday, May 4th, 2025

Longmont's only Half Marathon - now offered in the cooler month of MAY! Join the Half Marathon or 5k distance! Walkers and Runners of all abilities welcome!

Course Map

Find The Run Newsletter - Latest Edition

Suggested Races

Narrowleaf Lake Run & Pumpkin Run

Loveland, CO

Sunday, October 26th, 2025

1 Mile

10K

15K

View details for race Narrowleaf Lake Run & Pumpkin Run

Muddy Dash | Denver | May 10th, 2025

Erie, CO

Saturday, May 10th, 2025

View details for race Muddy Dash | Denver | May 10th, 2025

21st Annual Bob Turner Classic 5k Run/Walk

Berthoud, CO

Saturday, May 3rd, 2025

View details for race 21st Annual Bob Turner Classic 5k Run/Walk

13th Annual Buffs4Life 5k Walk/Run

Boulder, CO

Sunday, June 22nd, 2025

View details for race 13th Annual Buffs4Life 5k Walk/Run

Dash & Dine 5k #2

Boulder, CO

Tuesday, May 6th, 2025

View details for race Dash & Dine 5k #2

Dash & Dine 5k #3

Boulder, CO

Tuesday, May 13th, 2025

View details for race Dash & Dine 5k #3

Dash & Dine 5k #4 - Series Finale

Boulder, CO

Tuesday, May 20th, 2025

View details for race Dash & Dine 5k #4 - Series Finale

Crazy Legs 10k+ Trail Run

Loveland, CO

Sunday, June 1st, 2025

View details for race Crazy Legs 10k+ Trail Run

Resolute Runner 5k

Arvada, CO

Thursday, January 1st, 2026

View details for race Resolute Runner 5k

All-Out Mardi Crawl

Arvada, CO

Sunday, February 22nd, 2026

Half

10K

View details for race All-Out Mardi Crawl

All-Out Polar Prowl

Arvada, CO

Saturday, January 10th, 2026

Half

10K

View details for race All-Out Polar Prowl

All-Out Runapalooza

Arvada, CO

Saturday, August 2nd, 2025

Half

10K

View details for race All-Out Runapalooza

All-Out Summer Breeze

Arvada, CO

Saturday, June 7th, 2025

Half

10K

View details for race All-Out Summer Breeze

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

Arvada, CO

Sunday, June 15th, 2025

10K

1 Mile

View details for race Father's Day Classic 10k, 5k, & 1 Mile

Heart Throb 5k

Arvada, CO

Saturday, February 14th, 2026

View details for race Heart Throb 5k

Miles for Smiles 5K

Arvada, CO

Sunday, May 18th, 2025

View details for race Miles for Smiles 5K

10k Turkey Trek & 5k Turkey Trot - Now With HAL...

Arvada, CO

Saturday, November 22nd, 2025

10K

Half

View details for race 10k Turkey Trek & 5k Turkey Trot - Now With HALF MARATHON DISTANCE!

Apex Foundation Trick or Trot 5K & Kids' Hallow...

Arvada, CO

Saturday, October 25th, 2025

1 Mile

View details for race Apex Foundation Trick or Trot 5K & Kids' Halloween Hunt

Avery Brewing Co. 4K on the 4th

Boulder, CO

Friday, July 4th, 2025

View details for race Avery Brewing Co. 4K on the 4th

BRR All-Comers Summer Track & Field Series #3

Boulder, CO

Wednesday, July 2nd, 2025

1 Mile

View details for race BRR All-Comers Summer Track & Field Series #3