Colorado race calendar

July 2027 races in Colorado

Running races in Colorado in July 2027: 16 upcoming 5Ks, 10Ks, half marathons, marathons, and trail races with dates and entry fees.

upcoming races

2,027

year

By distance

July 2027

Red, White, and WARRIOR 5K

Grand Junction, Colorado7:30 AM start

5KKids

from $10

Greeley Freedom 5k Walk & Run

Greeley, Colorado7:00 AM start

from $29

Let Freedom Run 5k/10k - Louisville

Louisville, Colorado7:30 AM start

5K 10KKids

from Free

Independence Day Freedom 5K

Buena Vista, Colorado8:30 AM start

5KOther

from $25

Silverheels Trail Runs

Como, Colorado4:00 AM startTrail

100K UltraOther

from $60

Hardrock 100 Endurance Run

Silverton, Colorado6:00 AM startTrail

100 Mile

from $450

All-Out Dog Days

Westminster, Colorado7:00 AM start

5K 10K Half Marathon

from $35

Cookie Chase

Denver, Colorado8:00 AM start

from $30

Grin & Bear It

Crested Butte, Colorado8:00 AM start

15KOther

from $75

Summer Splash Prairie Dog Half, 10k, & 5k

Castle Rock, Colorado6:30 AM start

5K 10K Half Marathon

from $39

Heatwave Half Marathon/5K/10K - Denver

Denver, Colorado7:00 AM start

1 Mile5K 10K Half MarathonKids

from Free

Heatwave Half Marathon/5K/10K - Colorado Springs

Colorado Springs, Colorado7:00 AM start

1 Mile5K 10K Half MarathonKids

from Free

Pikes Peak Ultra

Colorado Springs, Colorado5:30 AM startTrail

50 Mile 50KOther

Spirit of the West 5K Run/Walk

Golden, Colorado7:00 AM start

5KOther

from Free

Popsicle 5K/10K/Half - Colorado Springs

Colorado Springs, Colorado7:00 AM start

5K 10K Half Marathon

from $25

Eat. Run. Adopt. 10K

Berthoud, Colorado10:00 AM start

10K

from $20