Upcoming Half Marathon Races Near Aurora, CO

Name: All-Out Summer Breeze
Start: 2026-06-13
End: 2026-06-13
Location: Arvada

Fleet Feet Denver Fall Half-Marathon Twelve-Wee...

Littleton, CO

Tuesday, July 8th, 2025

Half

View details for race Fleet Feet Denver Fall Half-Marathon Twelve-Week Training Program

All-Out Dog Days

Westminster, CO

Saturday, July 12th, 2025

Half

10K

View details for race All-Out Dog Days

Summer Splash Prairie Dog Half, 10k, & 5k

Castle Rock, CO

Saturday, July 19th, 2025

Half

10K

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

All-Out Runapalooza

Arvada, CO

Saturday, August 2nd, 2025

Half

10K

Trail

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Bound for Boston Marathon & Half Marathon - Denver

Denver, CO

Sunday, August 3rd, 2025

Marathon

Half

Fast

View details for race Bound for Boston Marathon & Half Marathon - Denver

Erie Half & 5k

Erie, CO

Sunday, August 17th, 2025

Half

View details for race Erie Half & 5k

Staunton Rocks! Marathon & Half

Conifer, CO

Saturday, August 23rd, 2025

Half

Marathon

Trail

View details for race Staunton Rocks! Marathon & Half

Staunton Rocks! Marathon and Half Marathon

Pine, CO

Saturday, August 23rd, 2025

Marathon

Half

Trail

View details for race Staunton Rocks! Marathon and Half Marathon

Calarat Challenge Trail Running Festival

Jamestown, CO

Saturday, August 30th, 2025

Half

10K

Trail

View details for race Calarat Challenge Trail Running Festival

Labor Day Half Marathon

Parker, CO

Monday, September 1st, 2025

Half

10K

Fast

View details for race Labor Day Half Marathon

National Chocolate Day: Run for Chocolates DENV...

Centennial, CO

Saturday, September 13th, 2025

10K

Half

View details for race National Chocolate Day: Run for Chocolates DENVER/AURORA

All-Out Fall Fest

Westminster, CO

Saturday, September 13th, 2025

Half

10K

Trail

View details for race All-Out Fall Fest

Spooky Sprint - Denver

Littleton, CO

Sunday, September 14th, 2025

1 Mile

10K

View details for race Spooky Sprint - Denver

Spooky Sprint - Denver

Denver, CO

Sunday, September 14th, 2025

10K

1 Mile

View details for race Spooky Sprint - Denver

13th Annual Superhero Event

Greeley, CO

Saturday, September 20th, 2025

10K

1 Mile

View details for race 13th Annual Superhero Event

National Coffee Day: Run for Coffee DENVER/AURORA

Centennial, CO

Saturday, September 27th, 2025

10K

Half

View details for race National Coffee Day: Run for Coffee DENVER/AURORA

Pioneer Prairie Dog Half, 10k & 5k

Westminster, CO

Saturday, September 27th, 2025

10K

Half

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

National Singles Day: Singles & Friends Running...

Centennial, CO

Saturday, September 27th, 2025

10K

Half

View details for race National Singles Day: Singles & Friends Running DENVER/AURORA

Layafette Music Fest Half-Marathon/10K/5K

Louisville, CO

Sunday, October 5th, 2025

Half

View details for race Layafette Music Fest Half-Marathon/10K/5K

Westy Half & 5k

Westminster, CO

Sunday, October 12th, 2025

Half

View details for race Westy Half & 5k

All-Out Kooky-Spooky

Golden, CO

Sunday, November 2nd, 2025

Half

10K

Trail

View details for race All-Out Kooky-Spooky

HRCA Backcountry Wilderness Half Marathon

Lone Tree, CO

Saturday, November 8th, 2025

Half

Trail

View details for race HRCA Backcountry Wilderness Half Marathon

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

Arvada, CO

Saturday, November 22nd, 2025

10K

Half

Trail

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

All-Out Fa La La

Westminster, CO

Saturday, December 6th, 2025

Half

10K

Trail

View details for race All-Out Fa La La

All-Out Polar Prowl

Arvada, CO

Saturday, January 10th, 2026

Half

10K

Trail

View details for race All-Out Polar Prowl

Arctic Prairie Dog Half, 10k & 5k

Louisville, CO

Sunday, January 18th, 2026

Half

10K

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

Run for Coffee Lovers 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Saturday, February 7th, 2026

10K

Half

View details for race Run for Coffee Lovers 5K/10K/13.1 DENVER/AURORA

All-Out Mardi Crawl

Arvada, CO

Sunday, February 22nd, 2026

Half

10K

Trail

View details for race All-Out Mardi Crawl

All-Out Spring Fever

Golden, CO

Sunday, March 22nd, 2026

Half

10K

Trail

View details for race All-Out Spring Fever

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

Arvada, CO

Sunday, April 12th, 2026

Half

10K

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

Platte River Half-Marathon and Relay

Littleton, CO

Sunday, April 12th, 2026

Half

Trail

View details for race Platte River Half-Marathon and Relay

All-Out Beat the Heat

Westminster, CO

Saturday, April 18th, 2026

Half

10K

Trail

View details for race All-Out Beat the Heat

Runs With Scissors Races

Brighton, CO

Saturday, April 25th, 2026

Half

Marathon

Ultra

View details for race Runs With Scissors Races

Longmont Half & 5k (LM Half)

Longmont, CO

Sunday, May 3rd, 2026

Half

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

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

Louisville, CO

Sunday, June 7th, 2026

Half

10K

Trail

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

All-Out Summer Breeze

Arvada, CO

Saturday, June 13th, 2026

Half

10K

Trail

View details for race All-Out Summer Breeze

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