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Half Marathons Found In Fort Collins, Colorado
View all ↓Half Marathons in & near Fort Collins, Colorado 2026 - 2027
The most comprehensive list of Half Marathons in and near Fort Collins, Colorado in 2026 - 2027. Find your perfect race!
Race Calendar: Half Marathons Found In Fort Collins, Colorado
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Rocky Mountain Half Marathon & 5K
Estes Park, Larimer
Fri 31 Jul 26 - Sat 01 Aug 26
$85.80 - $213.00
🚀Boosted
Bagel Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 10 Oct 26
$32.80 - $48.70
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Denver, CO Galloway Training Program
Denver, Colorado
Mon 01 Jun 26 - Mon 31 May 27
$91.10 - $274.00
2.2 for 22q Walk/Run/Ride 2026
Anywhere, Colorado
Sat 06 Jun 26 - Sun 14 Jun 26
$29.62 - $38.10
All-Out Summer Breeze
Arvada, Colorado
Sat 13 Jun 26
$43.40 - $91.10
Red, White and Brew 5k, 10k & Half Marathon
Windsor, Colorado
Sat 20 Jun 26
$16.90 - $96.40
Slacker Half Marathon-Relay-4-Mile Races
Georgetown, Colorado
Sat 27 Jun 26
$38.10 - $144.10
6th Annual July 4th ROCK-IT RUN
Castle Rock, Colorado
Sat 04 Jul 26
Free - $59.30
All-Out Dog Days
Westminster, Colorado
Sat 11 Jul 26
$38.10 - $85.80
Heatwave Half Marathon - Denver
Littleton, Colorado
Sat 11 Jul 26
Free - $81.36
Summer Splash Prairie Dog Half, 10k, & 5k
Castle Rock, Colorado
Sat 18 Jul 26
$40.00 - $80.00
4.0
Rocky Mountain Half Marathon & 5K
Estes Park, Larimer
Fri 31 Jul 26 - Sat 01 Aug 26
$85.80 - $213.00
Bound for Boston Marathon & Half Marathon - Denver
Denver, Colorado
Sun 02 Aug 26
Free - $102.70
Choice City Running Festival
Fort Collins, Colorado
Fri 07 Aug 26 - Sat 08 Aug 26
Free - $102.93
All-Out Runapalooza
Arvada, Colorado
Sat 08 Aug 26
$27.50 - $75.20
Run for PB& J 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 15 Aug 26
$32.80 - $48.70
Bagel Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 15 Aug 26
$32.80 - $48.70
Erie Half & 5k
Erie, Colorado
Sun 16 Aug 26
$49.00 - $75.20
Byers Peak Stampede Half Marathon & 5K Run
Fraser, Colorado
Sat 22 Aug 26
$64.60 - $85.80
Staunton Rocks! Marathon and Half Marathon
Pine, Colorado
Sat 22 Aug 26
$107.00 - $128.20
Pioneer Prairie Dog Half, 10k & 5k
Westminster, Colorado
Sun 23 Aug 26
$40.00 - $80.00
Run for Breast Cancer 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 29 Aug 26
$32.80 - $48.70
Sloth Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 29 Aug 26
$32.80 - $48.70
Labor Day Half Marathon
Parker, Colorado
Mon 07 Sep 26
$37.64 - $83.00
Run for Mental Health 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 12 Sep 26
$32.80 - $48.70
National Chocolate Day: Run for Chocolates 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 12 Sep 26
$32.80 - $48.70
Black Squirrel Half Marathon
Bellvue, Colorado
Sat 12 Sep 26
$107.00
All-Out Fall Fest
Westminster, Colorado
Sat 19 Sep 26
$27.50 - $75.20
Fall Equinox
Fort Collins, Colorado
Sun 20 Sep 26 - Sat 03 Oct 26
$55.00 - $146.45
Red Feather Trail Jamboree
Red Feather Lakes, Colorado
Fri 25 Sep 26 - Sun 27 Sep 26
$107.00 - $316.00
Run for Donuts 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 26 Sep 26
$32.80 - $48.70
Oktoberfest Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 26 Sep 26
$32.80 - $48.70
Running for Children's Rights to Both Parents - 9 of 50 Half Marathons in 50 States - Colorado
Boulder, Colorado
Sun 27 Sep 26
$43.40 - $526.00
Spooky Sprint - Denver
Littleton, Colorado
Sat 03 Oct 26
$23.98 - $68.64
Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile Run
Windsor, Colorado
Sun 04 Oct 26
$20.00 - $115.00
Coffee Lovers Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 10 Oct 26
$32.80 - $48.70
The Long View Marathon
Fort Collins, Colorado
Sat 10 Oct 26
$38.10 - $107.00
Breckenridge RunFest
Breckenridge, Colorado
Sat 10 Oct 26
$30.25 - $130.95
Bagel Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 10 Oct 26
$32.80 - $48.70
Westy Half & 5k
Westminster, Colorado
Sun 11 Oct 26
$40.00 - $65.00
PB&J Fuel Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 31 Oct 26
$32.80 - $48.70
Halloween Trick or Trot Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 31 Oct 26
$32.80 - $48.70
Showing 1-40 of 63 results
