Colorado Run Listings
Saturday 2 Feb 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 2 Feb 2019
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday 2 Feb 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 2 Feb 2019
Six Pack Series - Winter #4
4M/5k
Saturday 2 Feb 2019
Abominable Winter Adventure Run
Expect steep inclines, deep snow, thick forests, walls and crawls, sledding sections and other challenging winter themed obstacles to overcome
Sunday 3 Feb 2019
Edora Park 8k Tortoise & Hare
All about anyone having the same ability to win the race
Sunday 3 Feb 2019
Winter Highlands Ranch Six Pack Series #4
4 Mile or 5k
Sunday 3 Feb 2019
Ralston Creek Half Marathon & 5k
Colorado's Premier Winter Half Marathon
Sunday 3 Feb 2019
Super Bowl 5K
Don't forgot to dress in your favorite team colors!
Sunday 3 Feb 2019
Super Half Marathon & Game Day 5K
Fundraiser for the Pikes Peak Road Runners and PikesPeakSports.us
Sunday 3 Feb 2019
Super Sunday Fun Run
Show your team spirit and wear your favorite team jersey or attire
Saturday 9 Feb 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 9 Feb 2019
Snow Queen Frosty February 5K
5k, 10k
Saturday 9 Feb 2019
Le Cours de L'Amour 5K/10K
5K, 10K and Kids Run
Saturday 9 Feb 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 9 Feb 2019
Sweetheart Classic
4-mile race and couples race
Saturday 9 Feb 2019
Catch Me If You Can
For this race all the ladies get a 3 minute head start
Saturday 9 Feb 2019
Platte River 7M and 5K
Runs on the South Platte concrete bike paths
Saturday 9 Feb 2019
Heart Throb Run 5k - Arvada
I'm a heart throb!
Saturday 9 Feb 2019
Heart Throb Run 5k - Longmont
I'm a heart throb!
Saturday 9 Feb 2019
Love 'em or Leave 'em 5K 10K
Will you embrace the holiday full of heart or run from Cupid?
Saturday 9 Feb 2019
Winter Series III
5M 10M
Sunday 10 Feb 2019
Valentines Twosome
Casual couples relay on a 5-km course at City Park
Sunday 10 Feb 2019
Valentine's Day 4-Mile
Denver's oldest Valentine's Day Run
Sunday 10 Feb 2019
Old Man Winter Rally
A fast, flat "Best of Lyons" 5.8-mile run course
Saturday 16 Feb 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 16 Feb 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 16 Feb 2019
Six Pack Series - Winter #5
5M/5k
Saturday 16 Feb 2019
Sweet Heart Run
5k/10k Run & Health Expo
Sunday 17 Feb 2019
Vail Mountain Winter Uphill Race
Takes runners, skiers, snowshoers and outdoor enthusiasts approximately 2,200 vertical feet, or two miles, up the groomed trails the top of Vail Mountain
Sunday 17 Feb 2019
Winter Highlands Ranch Six Pack Series #5
5 mile or 5k
Sunday 17 Feb 2019
Freeze Your Buns Off
Nice flat 5K course
Saturday 23 Feb 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 23 Feb 2019
Mardi Crawl 1M, 5K, 10K & Half Marathon
Superior events from start to finish line
Saturday 23 Feb 2019
Snowman Stampede
5-mile, 10-mile, kids run
Saturday 23 Feb 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 23 Feb 2019
Forty Furlongs
Warm up your winter running with this fast CMRA 5 mile (1600 rod) race
Saturday 23 Feb 2019
Chilly Cheeks Duathlon Series #3
Each race is comprised of approximately 4 miles of running on paved roads, bike paths, and dirt trails
Saturday 23 Feb 2019
Winter Series IV
10K 20K
Saturday 23 Feb 2019
Cupid's Undie Run
A mile(ish) run in your bedroom-best on Valentine's weekend to raise money for The Children's Tumor Foundation
Sunday 24 Feb 2019
Pueblo Marathon
Full and half
Saturday 2 Mar 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 2 Mar 2019
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday 2 Mar 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 2 Mar 2019
Six Pack Series - Winter #6
5k/10k
Sunday 3 Mar 2019
Fight For Air Climb
Supports the mission of the American Lung Association.
Sunday 3 Mar 2019
Lee Martinez Park 10k Tortoise & Hare
All about anyone having the same ability to win the race
Sunday 3 Mar 2019
Spring Runoff 5K 10K
5K, 10K, 10-mile, 3-mile
Sunday 3 Mar 2019
That Dam Run
Come Crush that Dam and the 13.1 Half Marathon, 10K, or our 5K
Sunday 3 Mar 2019
Winter Highlands Ranch Six Pack Series #6
5k or 10k
Saturday 9 Mar 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 9 Mar 2019
Lucky Charm 1M, 5K, 10K
You can grab a bowl of LUCKY CHARMS at the end
Saturday 9 Mar 2019
Salida Run Through Time Marathon
One of Colorado's premier trail races
Saturday 9 Mar 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 16 Mar 2019
Sharin' O' the Green 5K
Supports Partners Mentoring Youth in Northern Colorado
Saturday 16 Mar 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 16 Mar 2019
Lucky Laces 5K/10K
5K, 10K, Little Leprechaun Fun Run
Saturday 16 Mar 2019
Erin Go Braugh 7.77k
Colorado's Luckiest Race!
Saturday 16 Mar 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 16 Mar 2019
St. Patrick's Day 5K
Once you finish your 5K, your first beer is on us!
Saturday 16 Mar 2019
5K for St Patricks Day
First race of the Grand Prix of Running
Saturday 16 Mar 2019
Blue Sky Blizzard Run 5K
Proceeds benefit Adults & Children with Developmental Disabilities
Saturday 16 Mar 2019
Saint Patrick's Brew Run
Wear your Greenest Green
Sunday 17 Mar 2019
Runnin' of the Green Lucky 7K
One of the largest 7K's in the United States
Saturday 23 Mar 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 23 Mar 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 23 Mar 2019
Spring Spree 10K
Bring some dry clothes and stay for breakfast after the race!
Sunday 24 Mar 2019
Spring Equinox Half Marathon
Half Marathon and 4-Mile
Sunday 24 Mar 2019
Spring Fever 1M, 5K, 10K & Half Marathon
Superior events from start to finish.
Saturday 30 Mar 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 30 Mar 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 30 Mar 2019
Walk, Run, Roll for Daniel
Join us as we spread the love to our local family, Daniel Giffin
Sunday 31 Mar 2019
Cottonwood Glen Park 12k Tortoise & Hare
All about anyone having the same ability to win the race
Saturday 6 Apr 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 6 Apr 2019
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday 6 Apr 2019
Three Creeks Half Marathon
Denver's Best Spring Half Marathon
Saturday 6 Apr 2019
Baylon Michael Meyer 5K/10K Memorial Run/Walk
Providing scholarships to Pueblo District 70 high school seniors
Saturday 6 Apr 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 6 Apr 2019
Bobcat Boogie
5K Run/Walk and 1 Mile Foxtrot Fun Run
Sunday 7 Apr 2019
XTERRA Cheyenne Mountain State Park 5K/12K/24K
Open to runners of all ages and skill levels.
Sunday 7 Apr 2019
Flying Pig 5K Run/Walk
Fundraiser to benefit families in the Family Support Services Program (FSSP)-Foothills Gateway, Inc.
Sunday 7 Apr 2019
Purple Run
This event is a fundraiser for those individuals with pancreatic cancer.
Saturday 13 Apr 2019
Rattler Trail Race
50k, 25k, and 10k
Saturday 13 Apr 2019
Beat the Heat 1M, 5K, 10K, Half and Full Marathon
Superior events from start to finish line.
Saturday 13 Apr 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 13 Apr 2019
24 Hours of Palmer Lake Death Race & Fun Run
Run a race where runners come together for fun, no pressure.
Saturday 13 Apr 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 13 Apr 2019
Tortoise and Hare
A unique handicap race based on age, weight, height and gender
Sunday 14 Apr 2019
Platte River Half Marathon & Relay
Enjoy the best post-race party in Colorado
Sunday 14 Apr 2019
Spring Fling Prairie Dog Half
Spring Fling!
Sunday 14 Apr 2019
Horsetooth Half Marathon
Surprisingly fast course, with a net loss in elevation
Saturday 20 Apr 2019
Hoppin' Half
A great way to celebrate Spring and enjoy one of the best parks in the city
Saturday 20 Apr 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 20 Apr 2019
Five Star Fun Run and 5K
All funds raised will go toward enhancing wellness programs in Adams 12 schools
Saturday 20 Apr 2019
Bunny Bolt 5K/10K
Don't miss Denver's only GOLDEN EGG HUNT for adults!!
Saturday 20 Apr 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Sunday 21 Apr 2019
Hams and Hamstrings® 5K
Colorado's Easter Sunday 5K - every finisher gets a free mini Easter Ham
Saturday 27 Apr 2019
Westminster Trail Half Marathon/10K/5K
Marathon, 10K, and 5K
Saturday 27 Apr 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 27 Apr 2019
Cheyenne Mountain Trail Race
10K, 25K, 50K
Saturday 27 Apr 2019
Donut Dash 5K and 10K
#DonutDash5K
Saturday 27 Apr 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 27 Apr 2019
Bash the Bluffs
In memory of Dr. Ed Burke (1949-2002)
Sunday 28 Apr 2019
Cherry Creek Sneak
10-mile, 5-mile, 5k or 1.5-mile
Saturday 4 May 2019
Collegiate Peaks Races
25 miles and 50 miles
Saturday 4 May 2019
Greenland Trail 50K
50K, 25K, 8M, 4M
Saturday 4 May 2019
runBlossom
1/2 marathon and both a 5k & 5mile option as well as a Kids' Fun Run & Toddler Trot
Saturday 4 May 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 4 May 2019
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday 4 May 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 4 May 2019
BT5K
Part of the American Brain Tumor Association's Breakthrough for Brain Tumors 5K series
Saturday 4 May 2019
Furry Scurry
Walk with us to raise funds for homeless pets and horses
Saturday 11 May 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 11 May 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 11 May 2019
Carbon Valley Half Marathon, Family & Friends Relay, 5K & Fun Run
To benefit Autism Research
Saturday 11 May 2019
Cross Country Challenge 6k
Runners will compete over a 6K distance on a course starting and finishing on the Great Lawn Park
Sunday 12 May 2019
Colorado Women's Classic
#runclassy
Sunday 12 May 2019
Denver Mother's Day 5K
Celebrate Mother's Day mom's way
Saturday 18 May 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 18 May 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 18 May 2019
Run to the Shrine
4-mile Run/Walk up to the Will Rogers Shrine of the Sun and back down into the Zoo
Sunday 19 May 2019
Colfax Marathon and Half Marathon
Enjoy Denver's iconic landmarks
Saturday 25 May 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 25 May 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Monday 27 May 2019
Bolder Boulder
America's All Time Best 10K
Monday 27 May 2019
Colorado Run
Moving to Memorial Day with a new beautiful race courses & great post-race party
Saturday 1 Jun 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 1 Jun 2019
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday 1 Jun 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 1 Jun 2019
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
Sunday 2 Jun 2019
Colorado 13er
13er, 10k, 5k
Saturday 8 Jun 2019
Mt. Evans Ascent
The climb totals nearly 4,000 vertical feet - much of it above treeline
Saturday 8 Jun 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 8 Jun 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 8 Jun 2019
Big Dog Brag
Colorado's Family-Friendly 5K & 2K Fun Mud Obstacle Run
Sunday 9 Jun 2019
Garden of the Gods 10 miler
Big Hills, Awesome Rocks, All Challenge
Thursday 13 Jun 2019
Summer Six Pack Series #1
1M/5k
Saturday 15 Jun 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 15 Jun 2019
Happy Camper Fun Run
13.1 Mile / 26.2 Mile / 50 Mile / 100 Mile
Saturday 15 Jun 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Sunday 16 Jun 2019
Fathers Day 5K/10K
Celebrate your Father, Brother, Son, Uncle, Grandfather, Husband or Friend with a great run or walk
Sunday 16 Jun 2019
Father's Day Classic
Come to race and stay for the FREE Father's Day Car Show
Sunday 16 Jun 2019
Desert RATS Kokopelli 150
Fruita, CO to Moab, UT
Saturday 22 Jun 2019
Summer Breeze 1M, 5K, 10K and Half Marathon
Superior events from start to finish line
Saturday 22 Jun 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 22 Jun 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Thursday 27 Jun 2019
Summer Six Pack Series #2
2M/5k
Saturday 29 Jun 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 29 Jun 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 29 Jun 2019
Big Dog Brag
Colorado's Family-Friendly 5K & 2K Fun Mud Obstacle Run
Thursday 4 Jul 2019
Longmont Half and 5k
Walkers and Runners of all abilities welcome
Thursday 4 Jul 2019
Let Freedom Run
1 mile fun run, 5k, 10k
Saturday 6 Jul 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 6 Jul 2019
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday 6 Jul 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Thursday 11 Jul 2019
Summer Six Pack Series #3
5k
Saturday 13 Jul 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 13 Jul 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 20 Jul 2019
Summer Splash Prairie Dog Half, 10K, and 5K
5K 10K Half Marathon
Saturday 20 Jul 2019
Dog Days 1M, 5K, 10K & Half Marathon
Superior events from start to finish line
Saturday 20 Jul 2019
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
Saturday 20 Jul 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 20 Jul 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Thursday 25 Jul 2019
Summer Six Pack Series #4
4M/5k
Saturday 27 Jul 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 27 Jul 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 3 Aug 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 3 Aug 2019
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday 3 Aug 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Thursday 8 Aug 2019
Summer Six Pack Series #5
5M/5k
Saturday 10 Aug 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 10 Aug 2019
Holy Cow Trail Stampede 5k/10k
Trail Stampede!
Saturday 10 Aug 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 17 Aug 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 17 Aug 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Thursday 22 Aug 2019
Summer Six Pack Series #6
10k/5k
Saturday 24 Aug 2019
Pikes Peak Ascent
Saturday 24 Aug 2019
Runapalooza 1M, 5K, 10K and Half Marathon
Superior events from start to finish line.
Saturday 24 Aug 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 24 Aug 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Sunday 25 Aug 2019
Pikes Peak Marathon
America's ultimate challenge
Sunday 25 Aug 2019
Erie Half and 5k
Saturday 31 Aug 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 31 Aug 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Sunday 1 Sep 2019
Flea Market Mile
Sunday 1 Sep 2019
Cheap 5K
Celebrate cheap Americana - and eat pancakes!
Saturday 7 Sep 2019
Palmer Lake Half Marathon and 10K
Can you say, "Wide Open Spaces.."
Saturday 7 Sep 2019
Aspen parkrun
Weekly Free 5km Timed Run
Saturday 7 Sep 2019
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday 7 Sep 2019
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday 14 Sep 2019
The Denver 5k
THE Denver 5k - Fun, Flat, Fast!
Saturday 21 Sep 2019
Fallfest 1M, 5K, 10K, Half and Full Marathon
Superior events from start to finish line.
Saturday 28 Sep 2019
Pioneer Prairie Dog Half, 10k, & 5k
Part of the prairie dog half series
Saturday 28 Sep 2019
Haxtun Corn Festival 5K
Saturday 5 Oct 2019
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Sunday 6 Oct 2019
K9 Canter
Costumed K9 Canter and 1 Mile Fun Run
Sunday 6 Oct 2019
Hot Chocolate 15K/5K
Start and finish at Civic Center Park amongst Denver's biggest chocolate aficionados
Saturday 19 Oct 2019
The Great Trailhead Foot Race 10 Miler and 5k
At Bear Creek Lake Park
Sunday 27 Oct 2019
Westy Half and 5k
Part of the Hometown Race Series
Sunday 27 Oct 2019
Kooky-Spooky 1M, 5K, 10K and Half Marathon
Superior events from start to finish line.
Saturday 2 Nov 2019
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday 23 Nov 2019
10k Turkey Trek
Can you conquer the challenge?
Thursday 28 Nov 2019
Broomfield Turkey Day 5k/10k
Finisher's Medals!
Saturday 7 Dec 2019
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday 4 Jan 2020
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
