5K races in Colorado, United States — 2026 running calendar

Sep

20

Connection 5k

Carbondale, Colorado, United States

Running

5K

Sep

19

Denver: Walk With Autism and Resource Fair

Denver, Colorado, United States

Running

5K

Sep

19

Stride for Hope 5K and Kids Fun Run

Delta, Colorado, United States

Running

5K 1.6K

Sep

19

Champions for Children 5K Run/Walk

Commerce City, Colorado, United States

Running

5K

Sep

19

Miles 4 Madison 5K & 1K

Littleton, Colorado, United States

Running

5K 1K

Sep

19

Montbello Alive! 5K

Denver, Colorado, United States

Running

5K

Sep

19

Northfield Nighthawk Invitational

Denver, Colorado, United States

Running

3K 5K +3

Sep

19

Wellington STAR Foundation 5K 10K

Wellington, Colorado, United States

Running

5K 10K +2

Sep

19

ColorFest Color Run/Walk 5K

Pagosa Springs, Colorado, United States

Running

5K

Sep

19

Gummball 5K

Brighton, Colorado, United States

Running

5K

Sep

19

Beulah Challenge and OverIt Series

Beulah, Colorado, United States

Running

Half-Marathon 10K 5K +2

Sep

18

Arvada West Invite

Arvada, Colorado, United States

Running

5K