Colorado Run Listings

July 2018
Monday9Jul 2018
Silverton
Silverton 1000 Day 4
Multiday Run consisting of six separate running events
Tuesday10Jul 2018
Silverton
Silverton 1000 Day 5
Multiday Run consisting of six separate running events
Tuesday10Jul 2018
Frisco
Frisco Mountain Goat Kids Trail Running Series #2
Series of four kids trail running races over the summer
Wednesday11Jul 2018
Silverton
Silverton 1000 Day 6
Multiday Run consisting of six separate running events
Thursday12Jul 2018
Westminster
Six Pack Series - Summer-Fall #3
#RaceMyPace
Saturday14Jul 2018
Aspen
Aspen Valley Marathon
A beautiful and scenice run along the Rio Grande Trail.
Saturday14Jul 2018
Denver
Sand Creek Half Marathon
Also 5K and 10K
Saturday14Jul 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday14Jul 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday14Jul 2018
Frisco
Frisco Triathlon
Featuring stand-up-paddle boarding, mountain biking and trail running
Sunday15Jul 2018
Colorado Springs
USATri60
Indoor triathlon
Friday20Jul 2018
Silverton
Hardrock 100
An ultramarathon of 100.5 miles in length, plus 33,050 feet of climb and 33,050 feet of descent
Saturday21Jul 2018
Castle Rock
Prairie Dog Half, 5K, and 10K
5K 10K Half Marathon
Saturday21Jul 2018
Westminster
Dog Days 1M, 5K, 10K & Half Marathon
Superior events from start to finish
Saturday21Jul 2018
Palmer Lake
Kickers For Kids Fun Run
5K / 10K / 13.1 / 26.2 / 50K / 50 Miler
Saturday21Jul 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday21Jul 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday21Jul 2018
Littleton
Colorado Coyotes One Mile Race
How fast can you run a mile?
Saturday21Jul 2018
Vail
La Sportiva Camp Hale Half Marathon
Half marathon, 10K and 5K
Sunday22Jul 2018
Golden
Black Hawk Trail Half Marathon
If you are looking for one of the best "hill" courses the ERS has to offer, then look no further
Tuesday24Jul 2018
Frisco
Frisco Mountain Goat Kids Trail Running Series #3
Series of four kids trail running races over the summer
Thursday26Jul 2018
Westminster
Six Pack Series - Summer-Fall #4
#RaceMyPace
Saturday28Jul 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday28Jul 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday28Jul 2018
Colorado Springs
Color in Motion 5K
Your body moving while being plastered in an explosion of vibrant color with all your friends and family!
August 2018
Friday3Aug 2018
Fort Collins
Wild West Relay
Fort Collins to Steamboat Springs
Saturday4Aug 2018
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday4Aug 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday4Aug 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday4Aug 2018
Colorado Springs
Hears 5K Experience
Tuesday7Aug 2018
Frisco
Frisco Mountain Goat Kids Trail Running Series #4
Series of four kids trail running races over the summer
Thursday9Aug 2018
Westminster
Six Pack Series - Summer-Fall #5
#RaceMyPace
Saturday11Aug 2018
Estes Park
Rocky Mountain Half
#RMHalf
Saturday11Aug 2018
Aspen
Aspen Backcountry Marathon
Boasting spectacular views of the Elk Mountains and the city of Aspen
Saturday11Aug 2018
Ouray
Mt. Sneffels Marathon
Run point to point downhill on a dirt road along the Uncompahgre River
Saturday11Aug 2018
Westminster
Holy Cow Trail Stampede 5k/10k
Trail Stampede!
Saturday11Aug 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday11Aug 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday11Aug 2018
Arvada
Odyssey Beerwerks Beer Run
Are you ready to get your brew on?!?
Saturday18Aug 2018
Manitou Springs
Pikes Peak Ascent
Saturday18Aug 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday18Aug 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Sunday19Aug 2018
Manitou Springs
Pikes Peak Marathon
America's ultimate challenge
Sunday19Aug 2018
Denver
Dog Days of Summer
5K/10K & 1 Mile Doggy Dash
Thursday23Aug 2018
Westminster
Six Pack Series - Summer-Fall #6
#RaceMyPace
Saturday25Aug 2018
Arvada
Runapalooza 1M, 5K, 10K & Half Marathon
Superior events from start to finish
Saturday25Aug 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday25Aug 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Sunday26Aug 2018
Erie
Erie Half Marathon and 5K
Bring 5 non-perishable items on race day and get entered into the race-day raffle.
September 2018
Saturday1Sep 2018
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday1Sep 2018
Fountain
Start It Off 5k Color Run
A fun 5k color run to start off the festivities for the Labor Day weekend
Saturday1Sep 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday1Sep 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Sunday2Sep 2018
Colorado Springs
Cheap 5K
Celebrate cheap Americana - and eat pancakes!
Sunday2Sep 2018
Colorado Springs
Flea Market Mile
Monday3Sep 2018
Colorado Springs
ADT Marathon
10K, Half, Full
Friday7Sep 2018
Idaho Springs
Flaming Foliage Relay
Idaho Springs to Buena Vista
Saturday8Sep 2018
Arvada
Arvada Harvest Half Marathon
Half Marathon, 5K/10K/10M
Saturday8Sep 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday8Sep 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday8Sep 2018
Denver
The Denver 5k
Fun, flat and fast around beautiful Sloan's Lake!
Sunday9Sep 2018
Brighton
Step4Life
Raises money to help support patients and their families that have been affected by lung cancer
Saturday15Sep 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday15Sep 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday22Sep 2018
Westminster
Fallfest 1M, 5K, 10K,Half Marathon, & Marathon
Superior events from start to finish line
Saturday22Sep 2018
Westminster
The Pioneer Prairie Dog Half, 10k & 5k
Prairie Dog Half Series
Saturday22Sep 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday22Sep 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Sunday23Sep 2018
Golden
XTERRA Golden Gate Canyon
This course best exemplifies the spirit of the XTERRA Trail Run offering a 7k and 20K distances
Saturday29Sep 2018
Colorado Springs
Colorado Springs Marathon
Full, half, 5K, Kids K
Saturday29Sep 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday29Sep 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday29Sep 2018
Durango
Horse Gulch Hustle Trail Run
Tackle thirteen miles of rocky, rugged trail in Durango's renowned Horse Gulch
Saturday29Sep 2018
Durango
Durango Double Half Trail Marathon
Benefits the Women's Resource Center
October 2018
Saturday6Oct 2018
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday6Oct 2018
Castle Rock
Ridgeline Trail Race
Ridgeline Trail 50K, Marathon, Half Marathon and 10K - LiveBIG 5K and Family Adventure Race
Saturday6Oct 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday6Oct 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday6Oct 2018
Denver
Color Me Rad
We're the only 5K that will send you running through RAD color stations
Sunday7Oct 2018
Boulder
Boulder Rez Marathon
Boulder's biggest marathon
Sunday7Oct 2018
Louisville
Louisville Trail Half Marathon
This Flat and Fast Course is sure to be a a PR breaker
Sunday7Oct 2018
Westminster
Costumed K9 Canter & 1 Mile Fun Run
Come show off your dog and his costume!
Saturday13Oct 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday13Oct 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday20Oct 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday20Oct 2018
Morrison
Great Trailhead Foot Race
10 Miler and 5k
Saturday20Oct 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday27Oct 2018
Denver
Pumpkin Smash and Dash 5K/10K
Get halloween weekend off to a great start with a little cardio and then some pumpkin carving, vendor trick or treats, costume contests, music, youth activities and much, much more
Saturday27Oct 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday27Oct 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Sunday28Oct 2018
Westminster
Westy Half and 5k
Walkers and Runners of all abilities welcome
Sunday28Oct 2018
Golden
Kooky-Spooky 1M, 5K, 10K, & Half Marathon
Superior events from start to finish
November 2018
Saturday3Nov 2018
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday3Nov 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday3Nov 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday10Nov 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday10Nov 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday17Nov 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday17Nov 2018
Denver
Pumpkin Pie 5K and 10K
Ends with a huge slice of pie
Saturday17Nov 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Thursday22Nov 2018
Parker
Parker Turkey Day 5k
Thursday22Nov 2018
Erie
The Pilgrimage Run
Join us on Thanksgiving Day - It's not about turkey!
Saturday24Nov 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday24Nov 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
December 2018
Saturday1Dec 2018
Boulder
Colder Bolder
This 5K is a little different, but so are those of us who enjoy running in the cold
Saturday1Dec 2018
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday1Dec 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday1Dec 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday8Dec 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday8Dec 2018
Westminster
Fa La La 1M, 5K, 10K, & Half Marathon
Superior events from start to finish
Saturday8Dec 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday15Dec 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday15Dec 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday22Dec 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday22Dec 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday29Dec 2018
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday29Dec 2018
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
January 2019
Tuesday1Jan 2019
Arvada
Resolute Runner 5k
5k on new year's day
Saturday5Jan 2019
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday5Jan 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday5Jan 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday12Jan 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday12Jan 2019
Arvada
Polar Prowl 1M, 5K, 10K, & Half Marathon
Superior events from start to finish line
Saturday12Jan 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday19Jan 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday19Jan 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Sunday20Jan 2019
Louisville
Arctic Prairie Dog Half, 10k & 5k
Prairie Dog Half
Saturday26Jan 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday26Jan 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
February 2019
Saturday2Feb 2019
Colorado Springs
Nielson Challenge
A monthly 2-mile run with a cool handicap algorithm.
Saturday2Feb 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday2Feb 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday9Feb 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday9Feb 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday9Feb 2019
Arvada
Heart Throb Run 5k - Arvada
I'm a heart throb!
Saturday9Feb 2019
Longmont
Heart Throb Run 5k - Longmont
I'm a heart throb!
Saturday16Feb 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday16Feb 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday23Feb 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday23Feb 2019
Lakewood
Mardi Crawl 1M, 5K, 10K & Half Marathon
Superior events from start to finish line
Saturday23Feb 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
March 2019
Saturday2Mar 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday2Mar 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday9Mar 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday9Mar 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday16Mar 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday16Mar 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
Saturday16Mar 2019
Westminster
Erin Go Braugh 7.77k
Colorado's Luckiest Race!
Saturday23Mar 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday23Mar 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
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
April 2019
Saturday6Apr 2019
Aspen
Aspen parkrun
Weekly Free 5km Timed Run
Saturday6Apr 2019
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
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
Boulder
South Boulder Creek parkrun
Weekly Free 5km Timed Run
May 2019
Sunday12May 2019
Westminster
Colorado Women's Classic
#runclassy