Found 46 races near Grand County, CO

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JUN
25

Boulder, CO
• 49.7 miles
$20
Fun for all, from newcomers of any age racing for the first time to veteran competitors looking to test their fitness, all in a friendly, welcoming environment. We are back at CU Pott’s Field on...
15
JUN
26

Bailey, CO
• 36.3 miles
$10 -$20
A first-annual dog-friendly 5K on Dump Road in Bailey, CO benefiting local non-profit Peaceworks.
5K
11
JUN
27

Evergreen, CO
• 36.4 miles
DescriptionCome run with us in beautiful Evergreen at Alderfer/3 Sisters Park!This race day will offer a 10k race coursing through the amazing park.Play fun games from our rec trailer, visit our...
10K
27
JUN
27

Boulder, CO
• 50.1 miles
$25 -$45
The 29th Downtown Boulder Pearl Street Mile, a night of 1-Mile criterium races on the Pearl Street Mall.
21
JUN
27

Steamboat Springs, CO
• 53.1 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

Georgetown, CO
• 28.3 miles
$35 -$150
Hey Beautiful Slackers!   The 2026 Slacker Races will be held on June 27  Start Time 7:30am     There will be NO RACE DAY REGISTRATION  Get ready for an epic adventure at the 2026 Slacker...
4m Half Marathon
46
JUN
28

Idaho Springs, CO
• 29.2 miles
$175 -$185
Although the air will be noticeably thin at the starting line, Echo Lake's 10,600 feet of elevation is just the beginning. The climb totals nearly 4,000 vertical feet - much of it above treeline...
14m
26
JUL
3

Granby, CO
• 31.9 miles
The course runs through Kaibab Park as well as downtown Granby! Start and finish areas are at the Destination Granby offices (516 East Agate Ave.). The course elevation is 7,935 feet. The run is...
5K
15
JUL
4

Boulder, CO
• 53.6 miles
$40 -$45
17th annual flat-and-fast 4K fun run in Boulder with a post-race party.
4K
10
JUL
4

Tabernash, CO
• 27.1 miles
First annual 5K/15K run and walk at Devil's Thumb Ranch, Tabernash, CO on July 4.
5K 15K
13
JUL
4

Red Feather Lakes, CO
• 56.4 miles
$50
A 3.6-mile fun run around Red Feather Golf Course ending at The Tavern with a beer.
3m
49
JUL
4

Winter Park, CO
• 59.0 miles
$40
Continue your 4th of July celebration and join us in beautiful Winter Park, Colorado Unfiltered, for the Rendezvous Run for Independence 5k Run/Walk.  The 5K run/walk starts at  the Gondola Plaza...
5K
20
JUL
5

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

Boulder, CO
• 48.9 miles
A high-altitude day camp in Boulder for grades 6-12 to train with NCAA and elite runners.
20
JUL
6

Keystone, CO
• 5.7 miles
High altitude running camp for HS athletes
43
JUL
9

Boulder, CO
• 33.8 miles
$20
NO Race Day Registrations Fun for all, from newcomers of any age racing for the first time to veteran competitors looking to test their fitness, all in a friendly, welcoming environment. We are...
1m
13
JUL
13

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

Steamboat Springs, CO
• 43.9 miles
$35 -$55
9.5 Mile and 5K trail run in the Steamboat Springs Running Series, northern Colorado mountains.
5K 9m
31
JUL
23

Boulder, CO
• 47.4 miles
$20
USATF-sanctioned all-comers summer track and field meet at CU Potts Field in Boulder, CO.
13
JUL
25

Pine, CO
• 57.8 miles
DescriptionCome run with us in amazing Staunton State Park!This race day will offer a 10 mile distance.Play fun games from our rec trailer, visit our sponsors and vendor tents while you wait for...
10m
24