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Half Marathons Near Denver
Showing the next 50 runs that match your filters
Featured
Run the Rocks
Get 10% Off - Use Code RUNGUIDES2026
Date: Oct 11, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Golden, Colorado
Featured
The Stride 5K & Kids Run
Fun 5K, Kids Run + Fitness Expo!
Date: Oct 25, 2026 - Sunday
Size: 500 - 1,000 participants
Location: Littleton, Colorado
Bagel Run 5K/10K/13.1 - Denver/Aurora
Date: Oct 10, 2026 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
Westy Half & 5k
Date: Oct 11, 2026 - Sunday
Size: 100 - 500 participants
Location: Westminster, Colorado
Halloween Trick or Trot Run 5K/10K/13.1 - Denver/ Aurora
Date: Oct 31, 2026 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
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All-Out Kooky-Spooky
Date: Nov 1, 2026 - Sunday
Size: 500 - 1,000 participants
Location: Arvada, Colorado
Louisville Trail Race
Date: Nov 14, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Louisville, Colorado
Run for Mental Health 5K/10K/13.1 - Denver/Aurora
Date: Nov 14, 2026 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
TURKEY TREK (13.1, 10k, 5k & 2k)
Date: Nov 21, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Arvada, Colorado
Coffee Lovers Run 5K/10K/13.1 - Denver/Aurora
Date: Nov 28, 2026 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
All-Out Fa La La
Date: Dec 5, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Westminster, Colorado
Run for Breast Cancer 5K/10K/13.1 - Denver/Aurora
Date: Dec 12, 2026 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
A Merry Christmas Run 5K/10K/13.1 - Denver/Aurora
Date: Dec 26, 2026 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
All-Out Polar Prowl
Date: Jan 9, 2027 - Saturday
Size: 100 - 500 participants
Location: Arvada, Colorado
MLK Jr. Freedom Run 5K/10K/13.1 - Denver/Aurora
Date: Jan 16, 2027 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
Chilly Willy 5K/10K/Half Marathon - Colorado Springs
Date: Jan 23, 2027 - Saturday
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Coffee Lover Run 5K/10K/13.1 - Denver/Aurora
Date: Jan 30, 2027 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
All-Out Mardi Crawl
Date: Feb 6, 2027 - Saturday
Size: 100 - 500 participants
Location: Arvada, Colorado
Valentine's Day Run 5K/10K/13.1 - Denver/Aurora
Date: Feb 13, 2027 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
Ralston Creek Half Marathon & 5k
Date: Feb 14, 2027 - Sunday
Size: 100 - 500 participants
Location: Arvada, Colorado
Run Together Against Breast Cancer 5K/10K/13.1 - Denver/Aurora
Date: Feb 27, 2027 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
Time to Paddy 5K/10K & Lucky 13.1 - Denver
Date: Mar 6, 2027 - Saturday
Size: 100 - 500 participants
Location: Denver, Colorado
That DAM Run 13.1M, 10K & 5K
Date: Mar 7, 2027 - Sunday
Size: 1,000 - 5,000 participants
Location: Greenwood Village, Colorado
St. Paddy's Day Lucky Run - Denver/Aurora
Date: Mar 20, 2027 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
All-Out Spring Fever
Date: Mar, 2027 (TBD)
Size: 500 - 1,000 participants
Location: Arvada, Colorado
Always Hope Easter Run - Denver/Aurora
Date: Mar 27, 2027 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
Three Creeks Half Marathon
Date: Apr, 2027 (TBD)
Size: 100 - 500 participants
Location: Greenwood Village, Colorado
Run for Bagels 5K/10K/13.1 - Denver/Aurora
Date: Apr 10, 2027 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
Mountain Ridge Trail Race
Date: Apr, 2027 (TBD)
Size: 100 - 500 participants
Location: Highlands Ranch, Colorado
Boulder Rez Half
Date: Apr, 2027 (TBD)
Size: 100 - 500 participants
Location: Boulder, Colorado
The Spring Fling Prairie Dog Half, 10K & 5K
Date: Apr, 2027 (TBD)
Size: 500 - 1,000 participants
Location: Arvada, Colorado
DoNot Stop Half Marathon/5k/10k - Denver
Date: Apr, 2027 (TBD)
Size: 100 - 500 participants
Location: Littleton, Colorado
Bigfoot Half Marathon & 5K
Date: Apr 24, 2027 - Saturday
Size: 500 - 1,000 participants
Location: Estes Park, Colorado
Coffee Lover Run - Denver/Aurora
Date: Apr 24, 2027 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
NoCo Half Marathon & 10K
Date: Apr, 2027 (TBD)
Size: 100 - 500 participants
Location: Loveland, Colorado
Blue Heron Half Marathon and 5K
Date: Apr, 2027 (TBD)
Size: 100 - 500 participants
Location: Thornton, Colorado
Longmont Half & 5k
Date: May, 2027 (TBD)
Size: 100 - 500 participants
Location: Longmont, Colorado
Mother's Day Run - Boulder Half, 10k & 5k
Date: May, 2027 (TBD)
Size: 100 - 500 participants
Location: Boulder County, Colorado
Hometown Half Marathon & 5k/10k - Denver
Date: May, 2027 (TBD)
Size: 100 - 500 participants
Location: Littleton, Colorado
Super Mom 5K/10K/Half - Colorado Springs
Date: May, 2027 (TBD)
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Colfax Marathon
Date: May 15-16, 2027 - Saturday to Sunday
Size: 10,000+ participants
Location: Denver, Colorado
Colorado 13er, 10k and 5k
Date: Jun, 2027 (TBD)
Size: 100 - 500 participants
Location: Louisville, Colorado
All-Out Summer Breeze
Date: Jun, 2027 (TBD)
Size: 100 - 500 participants
Location: Arvada, Colorado
Barr Lake Trail Race
Date: Jun, 2027 (TBD)
Size: 100 - 500 participants
Location: Commerce City, Colorado
Estes Park Marathon
Date: Jun 19-20, 2027 - Saturday to Sunday
Size: 500 - 1,000 participants
Location: Estes Park, Colorado
July 4th ROCK-IT RUN 5k, Half Marathon & Relay
Date: Jul, 2027 (TBD)
Size: 100 - 500 participants
Location: Castle Rock, Colorado
All-Out Dog Days
Date: Jul, 2027 (TBD)
Size: 100 - 500 participants
Location: Westminster, Colorado
All-Out Beat the Heat
Date: Jul, 2027 (TBD)
Size: 100 - 500 participants
Location: Westminster, Colorado
Heatwave Half Marathon - Denver
Date: Jul, 2027 (TBD)
Size: 100 - 500 participants
Location: Littleton, Colorado
Summer Splash Prairie Dog Half Marathon, 10k & 5k
Date: Jul, 2027 (TBD)
Size: 100 - 500 participants
Location: Castle Rock, Colorado
Rocky Mountain Half Marathon and 5K
Date: Jul, 2027 (TBD)
Size: 500 - 1,000 participants
Location: Estes Park, Colorado
Popsicle 5K/10K/Half - Colorado Springs
Date: Aug, 2027 (TBD)
Size: 100 - 500 participants
Location: Colorado Springs, Colorado