Colorado Run Listings

March 2019
Saturday23Mar 2019
Manitou Springs
Hill Trail Marathon and Half
Single track on snow/icy/steep trails plus some dirt road section
Saturday23Mar 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday23Mar 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday23Mar 2019
Littleton
Spring Spree 10K
Bring some dry clothes and stay for breakfast after the race!
Sunday24Mar 2019
Fort Collins
Spring Equinox Half Marathon
Half Marathon and 4-Mile
Sunday24Mar 2019
Golden
Spring Fever 1M, 5K, 10K & Half Marathon
Superior events from start to finish.
Saturday30Mar 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday30Mar 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday30Mar 2019
Colorado Springs
Walk, Run, Roll for Daniel
Join us as we spread the love to our local family, Daniel Giffin
Sunday31Mar 2019
Fort Collins
Cottonwood Glen Park 12k Tortoise & Hare
All about anyone having the same ability to win the race
April 2019
Saturday6Apr 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday6Apr 2019
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday6Apr 2019
Denver
Three Creeks Half Marathon
Denver's Best Spring Half Marathon
Saturday6Apr 2019
Pueblo West
Baylon Michael Meyer 5K/10K Memorial Run/Walk
Providing scholarships to Pueblo District 70 high school seniors
Saturday6Apr 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday6Apr 2019
Westminster
Bobcat Boogie
5K Run/Walk and 1 Mile Foxtrot Fun Run
Saturday6Apr 2019
Lakewood
Westfax Brewing 5K Beer Run
We are the Colorado Brewery Running Series and we run for beer!
Sunday7Apr 2019
Colorado Springs
XTERRA Cheyenne Mountain State Park 5K/12K/24K
Open to runners of all ages and skill levels.
Sunday7Apr 2019
Fort Collins
Flying Pig 5K Run/Walk
Fundraiser to benefit families in the Family Support Services Program (FSSP)-Foothills Gateway, Inc.
Sunday7Apr 2019
Broomfield
Frank Shorter Race 4 Kids Health
Official 5K BolderBoulder Qualifier
Sunday7Apr 2019
Colorado Springs
Purple Run
This event is a fundraiser for those individuals with pancreatic cancer.
Sunday7Apr 2019
Littleton
Rockin' on the River 5K
Runs along the beautiful Platte River on the Mary Carter Greenway with LIVE music
Sunday7Apr 2019
Boulder
National Beer Day 5K
We are the Colorado Brewery Running Series and we run for beer!
Saturday13Apr 2019
Colorado Springs
Rattler Trail Race
50k, 25k, and 10k
Saturday13Apr 2019
Westminster
Beat the Heat 1M, 5K, 10K, Half and Full Marathon
Superior events from start to finish line.
Saturday13Apr 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday13Apr 2019
Palmer Lake
24 Hours of Palmer Lake Death Race & Fun Run
Run a race where runners come together for fun, no pressure.
Saturday13Apr 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday13Apr 2019
Colorado Springs
Tortoise and Hare
A unique handicap race based on age, weight, height and gender
Sunday14Apr 2019
Littleton
Platte River Half Marathon & Relay
Enjoy the best post-race party in Colorado
Sunday14Apr 2019
Arvada
Spring Fling Prairie Dog Half
Spring Fling!
Sunday14Apr 2019
Fort Collins
Horsetooth Half Marathon
Surprisingly fast course, with a net loss in elevation
Saturday20Apr 2019
Denver
Hoppin' Half
A great way to celebrate Spring and enjoy one of the best parks in the city
Saturday20Apr 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday20Apr 2019
Brighton
Five Star Fun Run and 5K
All funds raised will go toward enhancing wellness programs in Adams 12 schools
Saturday20Apr 2019
Denver
Bunny Bolt 5K/10K
Don't miss Denver's only GOLDEN EGG HUNT for adults!!
Saturday20Apr 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday20Apr 2019
Aurora
Hop & Hops Easter 5K
We are the Colorado Brewery Running Series and we run for beer!
Sunday21Apr 2019
Colorado Springs
Hams and Hamstrings® 5K
Colorado's Easter Sunday 5K - every finisher gets a free mini Easter Ham
Saturday27Apr 2019
Westminster
Westminster Trail Half Marathon/10K/5K
Marathon, 10K, and 5K
Saturday27Apr 2019
Castle Rock
Rock Hawk Trail Race
Held on the gorgeous, thrilling and rolling trails of Castle Rock's Miller Park & Ridgeline Trail systems
Saturday27Apr 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday27Apr 2019
Colorado Springs
Cheyenne Mountain Trail Race
10K, 25K, 50K
Saturday27Apr 2019
Denver
Donut Dash 5K and 10K
#DonutDash5K
Saturday27Apr 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday27Apr 2019
Colorado Springs
Bash the Bluffs
In memory of Dr. Ed Burke (1949-2002)
Sunday28Apr 2019
Denver
Cherry Creek Sneak
10-mile, 5-mile, 5k or 1.5-mile
Sunday28Apr 2019
Denver
Zuni Street Brewing 5K Beer Run
We are the Colorado Brewery Running Series and we run for beer!
May 2019
Thursday2May 2019
Colorado Springs
Run/Walk for Mental Health
Be part of our journey to raise awareness and understanding for mental illness in all 50 states in 50 days
Saturday4May 2019
Buena Vista
Collegiate Peaks Races
25 miles and 50 miles
Saturday4May 2019
Palisade
Grand Valley Marathon
See some of the most historic and scenic areas in the Grand Valley
Saturday4May 2019
Larkspur
Greenland Trail 50K
50K, 25K, 8M, 4M
Saturday4May 2019
Canon City
runBlossom
1/2 marathon and both a 5k & 5mile option as well as a Kids' Fun Run & Toddler Trot
Saturday4May 2019
Colorado Springs
Take 5 in the Garden
5K and 5Mile Courses
Saturday4May 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday4May 2019
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday4May 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday4May 2019
Denver
BT5K
Part of the American Brain Tumor Association's Breakthrough for Brain Tumors 5K series
Saturday4May 2019
Denver
Furry Scurry
Walk with us to raise funds for homeless pets and horses
Saturday4May 2019
Estes Park
Duck Waddle 5K
Run with us and automatically adopt a rubber Duck to float down the Fall River
Saturday11May 2019
Fruita
Rabbit Valley Half
With short steep climbs, rock gardens and sand traps runners will enjoy 13.1 miles of gorgeous early season desert.
Saturday11May 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday11May 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday11May 2019
Firestone
Carbon Valley Half Marathon, Family & Friends Relay, 5K & Fun Run
To benefit Autism Research
Saturday11May 2019
Littleton
Airlife Memorial 10K/5K
The 5K and 10K are both official USATF certified qualifiers for the BolderBoulder
Saturday11May 2019
Denver
Cross Country Challenge 6k
Runners will compete over a 6K distance on a course starting and finishing on the Great Lawn Park
Saturday11May 2019
Montrose
Montrose Aruna Run/Walk
Run or walk for an enslaved woman by name whom the Aruna Project staff personally know and are working to free from the brothels
Saturday11May 2019
Colorado Springs
Lustgarten Foundation Pancreatic Cancer Research Walk and 5K
Saturday11May 2019
Colorado Springs
Women's Distance Festival 5K
Supporting Girls on the Run
Sunday12May 2019
Pueblo
Yappy Dog 8.6M
Race #5 of the SCR Prediction Series
Sunday12May 2019
Westminster
Colorado Women's Classic
#runclassy
Sunday12May 2019
Denver
Denver Mother's Day 5K
Celebrate Mother's Day mom's way
Saturday18May 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday18May 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday18May 2019
Evergreen
Elk Meadow 5k Trail Race
This 5K race leads runners throughout the rolling hills of Elk Meadow Open Space Park
Saturday18May 2019
Colorado Springs
Run to the Shrine
4-mile Run/Walk up to the Will Rogers Shrine of the Sun and back down into the Zoo
Saturday18May 2019
Denver
Colfax 5K
Your chance to be a part of marathon weekend but at a much shorter distance
Sunday19May 2019
Denver
Colfax Marathon and Half Marathon
Enjoy Denver's iconic landmarks
Sunday19May 2019
Colorado Springs
NORAD Trail Race
Full marathon, half marathon, and 4-mile
Saturday25May 2019
Colorado Springs
High Drive Challenge
10-mile and 4-mile
Saturday25May 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday25May 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Monday27May 2019
Boulder
Bolder Boulder
America's All Time Best 10K
Monday27May 2019
Fort Collins
Colorado Run
Moving to Memorial Day with a new beautiful race courses & great post-race party
June 2019
Saturday1Jun 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday1Jun 2019
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday1Jun 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday1Jun 2019
Louisville
Taste of Louisville
Saturday1Jun 2019
Denver
Denver Brain Tumor Walk
An opportunity for individuals and teams to honor and remember loved ones, connect with others interested in the brain tumor community and raise awareness
Sunday2Jun 2019
Louisville
Colorado 13er
13er, 10k, 5k
Sunday2Jun 2019
Steamboat Springs
Steamboat Marathon
Find out why the Steamboat Marathon was ranked as one of the "Top 10 Destination Marathons in North America"
Sunday2Jun 2019
Centennial
Splash Dash 5K
Prepare to get wet as you wind through the adjacent Southglenn subdivision
Saturday8Jun 2019
Idaho Springs
Mt. Evans Ascent
The climb totals nearly 4,000 vertical feet - much of it above treeline
Saturday8Jun 2019
Divide
Mueller Marathon
Marathon and 25K at Mueller State Park
Saturday8Jun 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday8Jun 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday8Jun 2019
Pueblo
Big Dog Brag
Colorado's Family-Friendly 5K & 2K Fun Mud Obstacle Run
Sunday9Jun 2019
Colorado Springs
Garden of the Gods 10 miler
Big Hills, Awesome Rocks, All Challenge
Thursday13Jun 2019
Westminster
Summer Six Pack Series #1
1M/5k
Saturday15Jun 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday15Jun 2019
Westminster
Happy Camper Fun Run
13.1 Mile / 26.2 Mile / 50 Mile / 100 Mile
Saturday15Jun 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Sunday16Jun 2019
Denver
Fathers Day 5K/10K
Celebrate your Father, Brother, Son, Uncle, Grandfather, Husband or Friend with a great run or walk
Sunday16Jun 2019
Arvada
Father's Day Classic
Come to race and stay for the FREE Father's Day Car Show
Sunday16Jun 2019
Fruita
Desert RATS Kokopelli 150
Fruita, CO to Moab, UT
Saturday22Jun 2019
Arvada
Summer Breeze 1M, 5K, 10K and Half Marathon
Superior events from start to finish line
Saturday22Jun 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday22Jun 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday22Jun 2019
Georgetown
Slacker Half Marathon
The highest downhill half marathon in the country and possibly the highest dowhill 4 Mile Run
Thursday27Jun 2019
Westminster
Summer Six Pack Series #2
2M/5k
Saturday29Jun 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday29Jun 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday29Jun 2019
Colorado Springs
Big Dog Brag
Colorado's Family-Friendly 5K & 2K Fun Mud Obstacle Run
July 2019
Thursday4Jul 2019
Longmont
Longmont Half and 5k
Walkers and Runners of all abilities welcome
Thursday4Jul 2019
Louisville
Let Freedom Run
1 mile fun run, 5k, 10k
Saturday6Jul 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday6Jul 2019
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday6Jul 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Thursday11Jul 2019
Westminster
Summer Six Pack Series #3
5k
Saturday13Jul 2019
Aspen
Aspen Valley Marathon
A beautiful and scenice run along the Rio Grande Trail.
Saturday13Jul 2019
Denver
Sand Creek Half Marathon
Also 5K and 10K
Saturday13Jul 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday13Jul 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday20Jul 2019
Castle Rock
Summer Splash Prairie Dog Half, 10K, and 5K
5K 10K Half Marathon
Saturday20Jul 2019
Westminster
Dog Days 1M, 5K, 10K & Half Marathon
Superior events from start to finish line
Saturday20Jul 2019
Palmer Lake
Kickers For Kids Fun Run
0.82 Mile, 5K, 10K, 13.1, 26.2, 50K, 50 Mile, 100K, 3-Person 50 Mile Relay, 6-Person 50 Mile Relay
Saturday20Jul 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday20Jul 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Thursday25Jul 2019
Westminster
Summer Six Pack Series #4
4M/5k
Saturday27Jul 2019
Colorado Springs
Pikes Peak Ultra
50-mile, 50K, and 30K
Saturday27Jul 2019
Conifer
Elevation 5K
Fundraiser for Conifer Lobos Unified Boosters and the Conifer Community Trails
Saturday27Jul 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday27Jul 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday27Jul 2019
Hesperus
Kennebec Mountain Run
An alpine trail race held in the La Plata Mountains
Sunday28Jul 2019
Manitou Springs
Barr Trail Mountain Race
One of the Front Range's historic summer mountain running events
August 2019
Saturday3Aug 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday3Aug 2019
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday3Aug 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday3Aug 2019
Colorado Springs
Hears 5K Experience
Sunday4Aug 2019
Castle Rock
XTERRA Castle Rock
5K, 10k, 20K
Sunday4Aug 2019
Evergreen
Evergreen Town Race
The fastest 5K ever run in Colorado was run on this course
Thursday8Aug 2019
Westminster
Summer Six Pack Series #5
5M/5k
Saturday10Aug 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday10Aug 2019
Westminster
Holy Cow Trail Stampede 5k/10k
Trail Stampede!
Saturday10Aug 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday17Aug 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday17Aug 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Thursday22Aug 2019
Westminster
Summer Six Pack Series #6
10k/5k
Saturday24Aug 2019
Manitou Springs
Pikes Peak Ascent
Saturday24Aug 2019
Arvada
Runapalooza 1M, 5K, 10K and Half Marathon
Superior events from start to finish line.
Saturday24Aug 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday24Aug 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Sunday25Aug 2019
Manitou Springs
Pikes Peak Marathon
America's ultimate challenge
Sunday25Aug 2019
Erie
Erie Half and 5k
Saturday31Aug 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday31Aug 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
September 2019
Sunday1Sep 2019
Colorado Springs
Flea Market Mile
Sunday1Sep 2019
Colorado Springs
Cheap 5K
Celebrate cheap Americana - and eat pancakes!
Saturday7Sep 2019
Palmer Lake
Palmer Lake Half Marathon and 10K
Can you say, "Wide Open Spaces.."
Saturday7Sep 2019
Eagle
Mountain RATS
Fun and adventurous trail running challenge
Saturday7Sep 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday7Sep 2019
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday7Sep 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday14Sep 2019
Denver
The Denver 5k
THE Denver 5k - Fun, Flat, Fast!
Saturday21Sep 2019
Westminster
Fallfest 1M, 5K, 10K, Half and Full Marathon
Superior events from start to finish line.
Sunday22Sep 2019
Colorado Springs
XTERRA Half Marathon, 12K and 5K
The original trail marathon race at Colorado Springs' Cheyenne Mountain State Park
Saturday28Sep 2019
Westminster
Pioneer Prairie Dog Half, 10k, & 5k
Part of the prairie dog half series
Saturday28Sep 2019
Commerce City
Foam Glow 5K
Glowing Foam and a ton of Blacklights all over the course
Saturday28Sep 2019
Haxtun
Haxtun Corn Festival 5K
October 2019
Saturday5Oct 2019
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday5Oct 2019
Brighton
Blacklight Run
A unique night 5K fun run focused less on speed and more on UV Neon Glowing fun with friends and family
Sunday6Oct 2019
Westminster
K9 Canter
Costumed K9 Canter and 1 Mile Fun Run
Sunday6Oct 2019
Denver
Hot Chocolate 15K/5K
Start and finish at Civic Center Park amongst Denver's biggest chocolate aficionados
Saturday19Oct 2019
Lakewood
The Great Trailhead Foot Race 10 Miler and 5k
At Bear Creek Lake Park
Sunday20Oct 2019
Glenwood Springs
XTERRA Glenwood Springs
Half marathon 12K and 5K trail race
Sunday27Oct 2019
Westminster
Westy Half and 5k
Part of the Hometown Race Series
Sunday27Oct 2019
Golden
Kooky-Spooky 1M, 5K, 10K and Half Marathon
Superior events from start to finish line.
November 2019
Saturday2Nov 2019
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday23Nov 2019
Arvada
10k Turkey Trek
Can you conquer the challenge?
Thursday28Nov 2019
Broomfield
Broomfield Turkey Day 5k/10k
Finisher's Medals!
Thursday28Nov 2019
Evergreen
EChO Annual Turkey Trot
Step Up to Stomp Out Hunger!
December 2019
Saturday7Dec 2019
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
January 2020
Saturday4Jan 2020
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
February 2020
Saturday1Feb 2020
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
March 2020
Saturday7Mar 2020
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.