Found 32 races

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JUN
25

Alma, CO
• 124.4 miles
$10 -$155
At Town Park finisher beer, trail, scenic, family-friendly
6m 10K 13m Half Marathon 26m 40m
76
JUN
27

Steamboat Springs, CO
• 52.9 miles
$35 -$55
Come join us for an exciting new race as part of the SBT GRVL race weekend. Experience the challenging yet beautiful trails at the historic Howelsen Hill ski area, one of the oldest in the...
5K 10K
24
JUN
27

Glenwood Springs, CO
• 68.8 miles
$50 -$110
Welcome to the Sunlight Mountain Race Series brought to you by Arc'teryx Aspen, where mountain air, winding trails, and a vibrant community come together for an unforgettable summer of running....
5K 10K Half Marathon
25
JUL
4

Aspen, CO
• 103.1 miles
$65 -$150
Join us for the 40th Annual Boogie's Buddy Race, Presented by Aspen Valley Health!Saturday, July 4, 2026  Rio Grande Park Aspen: 427 Rio Grande Pl, Aspen Kick off your Fourth of July weekend at...
1m 5K 5m
46
JUL
4

Fairplay, CO
• 58.8 miles
$35
5K tour of Fairplay's River Park Trail with dirt/gravel trails and mountain views at 9,953 ft.
5K
45
JUL
4

Saratoga, WY
• 87.3 miles
Annual Fourth of July 5K run/walk and kids fun run in Saratoga, WY.
2m 5K
6
JUL
4

Grand Junction, CO
• 104.1 miles
$10 -$35
First annual July 4th 5K at Las Colonias benefiting the Central High School Warrior Marching Band.
5K
34
JUL
4

Meeker, CO
• 29.5 miles
$20 -$30
Kick off the 4th of July with a family-friendly and festive 5K.  This fun run/walk is perfect for first-time 5K participants, elite runners, kids, parents with strollers, and everyone in...
5K
24
JUL
5

Clark, CO
• 51.1 miles
$45 -$50
8 Mile vertical trail race in the Steamboat Springs Running Series, northern Colorado.
8m
23
JUL
6

Keystone, CO
• 116.5 miles
High altitude running camp for HS athletes
43
JUL
13

Keystone, CO
• 116.5 miles
$1350
High altitude running camp for HS athletes
54
JUL
18

Aspen, CO
• 103.3 miles
$115 -$145
The Audi Power of Four Trail Run offers runners a scenic mix of trails across the mountains of Aspen Snowmass. Registrants can choose between the 3 distances offered including 50K, 25K & 10K.  
10K 25K 50K
53
JUL
18

Alma, CO
• 124.5 miles
$10 -$30
Laid-back community Firefighter 5K and Doggie Dash in Alma, CO with a pancake breakfast.
5K
30
JUL
18

Steamboat Springs, CO
• 53.9 miles
$35 -$55
9.5 Mile and 5K trail run in the Steamboat Springs Running Series, northern Colorado mountains.
5K 9m
31
JUL
25

Aspen, CO
• 103.2 miles
$80 -$260
http://www.aspenvalleymarathon.com
Half Marathon Marathon
49
AUG
1

Craig, CO
• 15.8 miles
$30
Kick off an unforgettable weekend at the Moffat County Hot Air Balloon Festival with our vibrant, can’t-miss Flying Colors 5K Fun Run/Walk!  Join us at Loudy Simpson Park for a lively stroll or...
1m 5K
40
AUG
1

Fairplay, CO
• 129.8 miles
$100 -$180
The Human Potential Running Series Presents: The Sheep Mountain Trail Runs @ Fairplay, CO Come ready my friends, this...
Half Marathon 50K 50m
94
AUG
9

Leadville, CO
• 117.3 miles
$65 -$80
Leadville Boom Days International Pack Burro RaceHauling Ass for Over 70 Years Step back into the grit and glory of the Old West at the legendary Leadville Boom Days International Pack Burro...
13
AUG
29

Steamboat Springs, CO
• 54.2 miles
Trail run in the northern Colorado mountains with 50k, 16 Mile, and 5 Mile options.
5m 16m 50K
29
SEP
5

Keystone, CO
• 116.1 miles
$80 -$90
Prizes Prizes will be distributed at the end of each race and for the overall series winners
64