March 14th:

Runnin' of the Green - Denver

April 11th:

Platte River Half Marathon - Denver

April 18th:

Horsetooth Half Marathon - Ft. Collins

April 25th:

Cherry Creek Sneak - Denver

May 9th:

Colorado Marathon/Half Marathon

May 16th:

Colfax Marathon/Half Marathon

May 31st:

Bolder Boulder 10K

June 6th:

Steamboat Marathon/Half Marathon 10K

June 13th:

Estes Park 5K/10K/Half Marathon/Marathon

June 26th:

August 14th:

Georgetown to Idaho Springs Half Marathon

August 21st/22nd:

Pikes Peak Ascent/Marathon

September 6th:

Aetna Park to Park 10 Miler

September 11th:

FASB Fitness Festival 5K

September 19th:

Boulder Marathon/Half Marathon

October 17th:

Rock n Roll Denver Marathon/Half Marathon

Upcoming Colorado and National Running Events:

Searchable Running Calendar