Race Director? Promote Your Race with RaceThread

Partner with us

Half Marathons in Colorado

Planning to run a Half Marathon in Colorado? Check out the full list below to see which races athletes have rated as the best half marathons in Colorado. View more running races by changing filters and expanding your search area.

Super Half Marathon

Colorado Springs, Colorado

February 4th, 2018

Running: Half Marathon, 5K

Ralston Creek Half Marathon

Arvada, Colorado

February 18th, 2018

Running: Half Marathon, 5K

Pueblo Marathon

Pueblo, Colorado

February 25th, 2018

Running: Half Marathon Trail Run, Marathon

Lantern Run Denver

Denver, Colorado

April 7th, 2018

Running: Half Marathon, 10K, 5K

Great Bay Half Marathon

Boulder, Colorado

April 8th, 2018

Running: Half Marathon, 5K

Desert RATS Rabbit Valley Half

Fruita, Colorado

May 12th, 2018

Running: Half Marathon Trail Run

Fear the Deer Trail Half Marathon

Littleton, Colorado

May 19th, 2018

Running: Half Marathon Trail Run

Spirit Trail Run

Buena Vista, Colorado

May 27th, 2018

Running: Half Marathon, 8K Trail Run

Vail Valor Races

Vail, Colorado

May 28th, 2018

Running: Half Marathon, Marathon, 1 Mile, 5 Miles, 5K

Palmer Lake Half Marathon

Palmer Lake, Colorado

June 2nd, 2018

Running: Half Marathon Trail Run, Kids Run/Fun Run, 10K

Park to Art Races

Meeker, Colorado

June 2nd, 2018

Running: Half Marathon, 10K, 5K

Park to Art Run

Meeker, Colorado

June 2nd, 2018

Running: Half Marathon

Skirt Sports 13er

Louisville, Colorado

June 3rd, 2018

Running: Half Marathon, 10K, 5K

Eagle Half Marathon

Eagle, Colorado

June 16th, 2018

Running: Half Marathon, 10K Trail Run

Mountain Ridge Trail Half Marathon and 10K

Highlands Ranch, Colorado

June 23rd, 2018

Running: Half Marathon, 10K Trail Run

Morgan Valley Marathon

Littleton, Colorado

June 30th, 2018

Running: Half Marathon, Marathon, 5K

Longmont Half Marathon

Longmont, Colorado

July 4th, 2018

Running: Half Marathon, 5K

Fueled by Fine Wine Half Marathon

Broomfield, Colorado

July 8th, 2018

Running: Half Marathon

Aspen Valley Marathon

Aspen, Colorado

July 14th, 2018

Running: Half Marathon, Marathon, 5K

Sand Creek Half Marathon

Denver, Colorado

July 14th, 2018

Running: Half Marathon, 10K, 5K