5K, 10K, Half & Full Marathons

5k races

Name	City	Date	Website
Winter Six Pack Series	Westminster, CO	29 January 2022	Winter Six Pack Series
Rio Frio 5K on Ice	Alamosa, CO	29 January 2022	Rio Frio 5K on Ice
South Boulder Creek parkrun	Boulder, CO	29 January 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	29 January 2022	Aspen parkrun
Aspen parkrun	Aspen, CO	5 February 2022	Aspen parkrun
Winter Six Pack Series	Westminster, CO	5 February 2022	Winter Six Pack Series
SuperBowl 5K	Denver, CO	5 February 2022	SuperBowl 5K
Snowshoe for Peru 5K	Eagle, CO	5 February 2022	Snowshoe for Peru 5K
South Boulder Creek parkrun	Boulder, CO	5 February 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	12 February 2022	Aspen parkrun
South Boulder Creek parkrun	Boulder, CO	12 February 2022	South Boulder Creek parkrun
Heart Throb 5K	Arvada, CO	12 February 2022	Heart Throb 5K
Super Half Marathon	Colorado Springs, CO	13 February 2022	Super Half Marathon
Winter Six Pack Series	Westminster, CO	19 February 2022	Winter Six Pack Series
Aspen parkrun	Aspen, CO	19 February 2022	Aspen parkrun
South Boulder Creek parkrun	Boulder, CO	19 February 2022	South Boulder Creek parkrun
All-Out Mardi Crawl	Arvada, CO	26 February 2022	All-Out Mardi Crawl
South Boulder Creek parkrun	Boulder, CO	26 February 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	26 February 2022	Aspen parkrun
Winter Six Pack Series	Westminster, CO	26 February 2022	Winter Six Pack Series
Highlands Ranch 5K/10K	Highlands Ranch, CO	27 February 2022	Highlands Ranch 5K/10K
Lucky Dog Dash	Thornton, CO	5 March 2022	Lucky Dog Dash
Aspen parkrun	Aspen, CO	5 March 2022	Aspen parkrun
South Boulder Creek parkrun	Boulder, CO	5 March 2022	South Boulder Creek parkrun
That Dam Run Half Marathon	Greenwood Village, CO	6 March 2022	That Dam Run Half Marathon
South Boulder Creek parkrun	Boulder, CO	12 March 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	12 March 2022	Aspen parkrun
South Boulder Creek parkrun	Boulder, CO	19 March 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	19 March 2022	Aspen parkrun
All-Out Spring Fever	Golden, CO	20 March 2022	All-Out Spring Fever
Aspen parkrun	Aspen, CO	26 March 2022	Aspen parkrun
South Boulder Creek parkrun	Boulder, CO	26 March 2022	South Boulder Creek parkrun
Central Park 5K	Denver, CO	27 March 2022	Central Park 5K
South Boulder Creek parkrun	Boulder, CO	2 April 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	2 April 2022	Aspen parkrun
Donut Dash 5K	Denver, CO	3 April 2022	Donut Dash 5K
Woody's Tortoise and Hare	Colorado Springs, CO	9 April 2022	Woody's Tortoise and Hare
South Boulder Creek parkrun	Boulder, CO	9 April 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	9 April 2022	Aspen parkrun
Spring Fling Prairie Dog Half	Arvada, CO	10 April 2022	Spring Fling Prairie Dog Half
Koala Bottle Cheyenne Mountain State Park 12K/24K	Colorado Springs, CO	10 April 2022	Koala Bottle Cheyenne Mountain State Park 12K/24K
Run the Ranch	Loveland, CO	15 April 2022	Run the Ranch
All-Out Beat the Heat	Westminster, CO	16 April 2022	All-Out Beat the Heat
Aspen parkrun	Aspen, CO	16 April 2022	Aspen parkrun
South Boulder Creek parkrun	Boulder, CO	16 April 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	23 April 2022	Aspen parkrun
South Boulder Creek parkrun	Boulder, CO	23 April 2022	South Boulder Creek parkrun
Mile High Mile and 5K	Denver, CO	24 April 2022	Mile High Mile and 5K
South Boulder Creek parkrun	Boulder, CO	30 April 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	30 April 2022	Aspen parkrun
South Boulder Creek parkrun	Boulder, CO	7 May 2022	South Boulder Creek parkrun
Take 5 in the Garden	Colorado Springs, CO	7 May 2022	Take 5 in the Garden
STRIDE Storybook 5K	Denver, CO	7 May 2022	STRIDE Storybook 5K
Aspen parkrun	Aspen, CO	7 May 2022	Aspen parkrun
Carbon Valley Half Marathon	Firestone, CO	7 May 2022	Carbon Valley Half Marathon
Airlife Memorial Run	Denver, CO	7 May 2022	Airlife Memorial Run
Colorado Women's Classic - Westminster	Westminster, CO	8 May 2022	Colorado Women's Classic - Westminster
Denver Colfax Marathon	Denver, CO	14 May 2022	Denver Colfax Marathon
Aspen parkrun	Aspen, CO	14 May 2022	Aspen parkrun
South Boulder Creek parkrun	Boulder, CO	14 May 2022	South Boulder Creek parkrun
Federal Cup 5K	Lakewood, CO	14 May 2022	Federal Cup 5K
South Boulder Creek parkrun	Boulder, CO	21 May 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	21 May 2022	Aspen parkrun
Aspen parkrun	Aspen, CO	28 May 2022	Aspen parkrun
South Boulder Creek parkrun	Boulder, CO	28 May 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	4 June 2022	Aspen parkrun
South Boulder Creek parkrun	Boulder, CO	4 June 2022	South Boulder Creek parkrun
Aiden's Adventure 5K	Colorado Springs, CO	4 June 2022	Aiden's Adventure 5K
Colorado 13er	Louisville, CO	5 June 2022	Colorado 13er
Six Pack Summer Series Westminster	Westminster, CO	9 June 2022	Six Pack Summer Series Westminster
Unicorn 5K	North Thornton, CO	11 June 2022	Unicorn 5K
Into The Wild Running Festival	Keenesburg, CO	11 June 2022	Into The Wild Running Festival
South Boulder Creek parkrun	Boulder, CO	11 June 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	11 June 2022	Aspen parkrun
Six Pack Summer Series Westminster	Westminster, CO	16 June 2022	Six Pack Summer Series Westminster
Aspen parkrun	Aspen, CO	18 June 2022	Aspen parkrun
South Boulder Creek parkrun	Boulder, CO	18 June 2022	South Boulder Creek parkrun
Father's Day Classic	Arvada, CO	19 June 2022	Father's Day Classic
Six Pack Summer Series Westminster	Westminster, CO	23 June 2022	Six Pack Summer Series Westminster
All-Out Summer Breeze	Arvada, CO	25 June 2022	All-Out Summer Breeze
Aspen parkrun	Aspen, CO	25 June 2022	Aspen parkrun
South Boulder Creek parkrun	Boulder, CO	25 June 2022	South Boulder Creek parkrun
The Colorado Mud Run	Colorado Springs, CO	25 June 2022	The Colorado Mud Run
Mountain Child Run4Hope	Centennial, CO	25 June 2022	Mountain Child Run4Hope
South Boulder Creek parkrun	Boulder, CO	2 July 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	2 July 2022	Aspen parkrun
Let Freedom Run	Louisville, CO	4 July 2022	Let Freedom Run
Longmont Half Marathon	Longmont, CO	4 July 2022	Longmont Half Marathon
Live Free ROCK-IT Run	Castle Rock, CO	4 July 2022	Live Free ROCK-IT Run
Six Pack Summer Series Westminster	Westminster, CO	7 July 2022	Six Pack Summer Series Westminster
South Boulder Creek parkrun	Boulder, CO	9 July 2022	South Boulder Creek parkrun
I Can 5K with Deja Vu 10K & 15K	Brighton, CO	9 July 2022	I Can 5K with Deja Vu 10K & 15K
Aspen parkrun	Aspen, CO	9 July 2022	Aspen parkrun
Six Pack Summer Series Westminster	Westminster, CO	14 July 2022	Six Pack Summer Series Westminster
Prairie Dog Half and 10K - Castle Rock	Castle Rock, CO	16 July 2022	Prairie Dog Half and 10K - Castle Rock
South Boulder Creek parkrun	Boulder, CO	16 July 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	16 July 2022	Aspen parkrun
Six Pack Summer Series Westminster	Westminster, CO	21 July 2022	Six Pack Summer Series Westminster
South Boulder Creek parkrun	Boulder, CO	23 July 2022	South Boulder Creek parkrun
All-Out Dog Days	Westminster, CO	23 July 2022	All-Out Dog Days
Aspen parkrun	Aspen, CO	23 July 2022	Aspen parkrun
Rocky Mountain Half Marathon	Estes Park, CO	29 July 2022	Rocky Mountain Half Marathon
South Boulder Creek parkrun	Boulder, CO	30 July 2022	South Boulder Creek parkrun
Atalanta 5K	Pueblo, CO	30 July 2022	Atalanta 5K
Aspen parkrun	Aspen, CO	30 July 2022	Aspen parkrun
Pirates Run for Booty	Thornton, CO	31 July 2022	Pirates Run for Booty
Spirit Of The West 5K	Golden, CO	31 July 2022	Spirit Of The West 5K
Unicorn 5K South	Highlands Ranch, CO	6 August 2022	Unicorn 5K South
Aspen parkrun	Aspen, CO	6 August 2022	Aspen parkrun
South Boulder Creek parkrun	Boulder, CO	6 August 2022	South Boulder Creek parkrun
Evergreen Town Race	Evergreen, CO	7 August 2022	Evergreen Town Race
Holy Cow Trail Stampede	Westminster, CO	13 August 2022	Holy Cow Trail Stampede
South Boulder Creek parkrun	Boulder, CO	13 August 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	13 August 2022	Aspen parkrun
Aspen parkrun	Aspen, CO	20 August 2022	Aspen parkrun
All-Out Runapalooza	Arvada, CO	20 August 2022	All-Out Runapalooza
South Boulder Creek parkrun	Boulder, CO	20 August 2022	South Boulder Creek parkrun
Erie Half Marathon	Erie, CO	21 August 2022	Erie Half Marathon
South Boulder Creek parkrun	Boulder, CO	27 August 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	27 August 2022	Aspen parkrun
Das Bier Burner 5K	Keystone, CO	3 September 2022	Das Bier Burner 5K
South Boulder Creek parkrun	Boulder, CO	3 September 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	3 September 2022	Aspen parkrun
Labor Day Half Marathon	Parker, CO	5 September 2022	Labor Day Half Marathon
South Boulder Creek parkrun	Boulder, CO	10 September 2022	South Boulder Creek parkrun
Denver 5K	Denver, CO	10 September 2022	Denver 5K
Aspen parkrun	Aspen, CO	10 September 2022	Aspen parkrun
Aspen parkrun	Aspen, CO	17 September 2022	Aspen parkrun
All-Out Fallfest	Westminster, CO	17 September 2022	All-Out Fallfest
Autumn Color Run	Buena Vista, CO	17 September 2022	Autumn Color Run
South Boulder Creek parkrun	Boulder, CO	17 September 2022	South Boulder Creek parkrun
Mountain RATS	Eagle, CO	17 September 2022	Mountain RATS
Superhero Event	Greeley, CO	17 September 2022	Superhero Event
Farmers 5000	Wheat Ridge, CO	18 September 2022	Farmers 5000
Aspen parkrun	Aspen, CO	24 September 2022	Aspen parkrun
South Boulder Creek parkrun	Boulder, CO	24 September 2022	South Boulder Creek parkrun
Prairie Dog Half and 10K/5K	Westminster, CO	24 September 2022	Prairie Dog Half and 10K/5K
Colorado Springs Marathon	Colorado Springs, CO	1 October 2022	Colorado Springs Marathon
South Boulder Creek parkrun	Boulder, CO	1 October 2022	South Boulder Creek parkrun
Aspen parkrun	Aspen, CO	1 October 2022	Aspen parkrun
Hot Chocolate 15K/5K - Denver	Denver, CO	2 October 2022	Hot Chocolate 15K/5K - Denver
Aspen parkrun	Aspen, CO	8 October 2022	Aspen parkrun
South Boulder Creek parkrun	Boulder, CO	8 October 2022	South Boulder Creek parkrun
Windsor Marathon	Windsor, CO	9 October 2022	Windsor Marathon

10k races

Name	City	Date	Website
Old Man Winter Rally	Lyons, CO	6 February 2022	Old Man Winter Rally
Winter Series	Colorado Springs, CO	19 February 2022	Winter Series
All-Out Mardi Crawl	Arvada, CO	26 February 2022	All-Out Mardi Crawl
Highlands Ranch 5K/10K	Highlands Ranch, CO	27 February 2022	Highlands Ranch 5K/10K
That Dam Run Half Marathon	Greenwood Village, CO	6 March 2022	That Dam Run Half Marathon
All-Out Spring Fever	Golden, CO	20 March 2022	All-Out Spring Fever
Spring Fling Prairie Dog Half	Arvada, CO	10 April 2022	Spring Fling Prairie Dog Half
Run the Ranch	Loveland, CO	15 April 2022	Run the Ranch
All-Out Beat the Heat	Westminster, CO	16 April 2022	All-Out Beat the Heat
Rattler Trail Race	Colorado Springs, CO	16 April 2022	Rattler Trail Race
Desert RATS Trail Running Festival	Fruita, CO	17 April 2022	Desert RATS Trail Running Festival
Cheyenne Mountain Trail Race	Colorado Springs, CO	30 April 2022	Cheyenne Mountain Trail Race
Airlife Memorial Run	Denver, CO	7 May 2022	Airlife Memorial Run
Colorado Women's Classic - Westminster	Westminster, CO	8 May 2022	Colorado Women's Classic - Westminster
NOCO Half Marathon & 10K	Loveland, CO	14 May 2022	NOCO Half Marathon & 10K
Colorado 13er	Louisville, CO	5 June 2022	Colorado 13er
Steamboat Marathon	Steamboat Springs, CO	5 June 2022	Steamboat Marathon
Into The Wild Running Festival	Keenesburg, CO	11 June 2022	Into The Wild Running Festival
Father's Day Classic	Arvada, CO	19 June 2022	Father's Day Classic
All-Out Summer Breeze	Arvada, CO	25 June 2022	All-Out Summer Breeze
Mountain Child Run4Hope	Centennial, CO	25 June 2022	Mountain Child Run4Hope
Let Freedom Run	Louisville, CO	4 July 2022	Let Freedom Run
I Can 5K with Deja Vu 10K & 15K	Brighton, CO	9 July 2022	I Can 5K with Deja Vu 10K & 15K
Prairie Dog Half and 10K - Castle Rock	Castle Rock, CO	16 July 2022	Prairie Dog Half and 10K - Castle Rock
Six Pack Summer Series Westminster	Westminster, CO	21 July 2022	Six Pack Summer Series Westminster
All-Out Dog Days	Westminster, CO	23 July 2022	All-Out Dog Days
Evergreen Town Race	Evergreen, CO	7 August 2022	Evergreen Town Race
Holy Cow Trail Stampede	Westminster, CO	13 August 2022	Holy Cow Trail Stampede
Leadville Trail 10K	Leadville, CO	14 August 2022	Leadville Trail 10K
Mt Sneffels Marathon	Ouray, CO	20 August 2022	Mt Sneffels Marathon
All-Out Runapalooza	Arvada, CO	20 August 2022	All-Out Runapalooza
Labor Day Half Marathon	Parker, CO	5 September 2022	Labor Day Half Marathon
Superhero Event	Greeley, CO	17 September 2022	Superhero Event
Autumn Color Run	Buena Vista, CO	17 September 2022	Autumn Color Run
All-Out Fallfest	Westminster, CO	17 September 2022	All-Out Fallfest
Prairie Dog Half and 10K/5K	Westminster, CO	24 September 2022	Prairie Dog Half and 10K/5K
Windsor Marathon	Windsor, CO	9 October 2022	Windsor Marathon

Half marathons

Name	City	Date	Website
Super Half Marathon	Colorado Springs, CO	13 February 2022	Super Half Marathon
All-Out Mardi Crawl	Arvada, CO	26 February 2022	All-Out Mardi Crawl
That Dam Run Half Marathon	Greenwood Village, CO	6 March 2022	That Dam Run Half Marathon
Run Through Time Marathon	Salida, CO	12 March 2022	Run Through Time Marathon
Spring Equinox Half Marathon	Fort Collins, CO	20 March 2022	Spring Equinox Half Marathon
All-Out Spring Fever	Golden, CO	20 March 2022	All-Out Spring Fever
Runs With Scissors Races	Brighton, CO	2 April 2022	Runs With Scissors Races
Spring Fling Prairie Dog Half	Arvada, CO	10 April 2022	Spring Fling Prairie Dog Half
Platte River Half Marathon	Littleton, CO	10 April 2022	Platte River Half Marathon
All-Out Beat the Heat	Westminster, CO	16 April 2022	All-Out Beat the Heat
Desert RATS Trail Running Festival	Fruita, CO	17 April 2022	Desert RATS Trail Running Festival
Carbon Valley Half Marathon	Firestone, CO	7 May 2022	Carbon Valley Half Marathon
Fruita Trail Half	Fruita, CO	8 May 2022	Fruita Trail Half
Valkyrie Trail Race	Colorado Springs, CO	14 May 2022	Valkyrie Trail Race
NOCO Half Marathon & 10K	Loveland, CO	14 May 2022	NOCO Half Marathon & 10K
Denver Colfax Marathon	Denver, CO	15 May 2022	Denver Colfax Marathon
Runoff Runoff	Creede, CO	4 June 2022	Runoff Runoff
REVEL Rockies	Denver, CO	4 June 2022	REVEL Rockies
Colorado 13er	Louisville, CO	5 June 2022	Colorado 13er
Steamboat Marathon	Steamboat Springs, CO	5 June 2022	Steamboat Marathon
South Park Trail Marathon	Fairplay, CO	11 June 2022	South Park Trail Marathon
All-Out Summer Breeze	Arvada, CO	25 June 2022	All-Out Summer Breeze
Longmont Half Marathon	Longmont, CO	4 July 2022	Longmont Half Marathon
Live Free ROCK-IT Run	Castle Rock, CO	4 July 2022	Live Free ROCK-IT Run
Prairie Dog Half and 10K - Castle Rock	Castle Rock, CO	16 July 2022	Prairie Dog Half and 10K - Castle Rock
All-Out Dog Days	Westminster, CO	23 July 2022	All-Out Dog Days
Rocky Mountain Half Marathon	Estes Park, CO	30 July 2022	Rocky Mountain Half Marathon
Georgetown to Idaho Springs Half Marathon	Georgetown, CO	13 August 2022	Georgetown to Idaho Springs Half Marathon
Mt Sneffels Marathon	Ouray, CO	20 August 2022	Mt Sneffels Marathon
All-Out Runapalooza	Arvada, CO	20 August 2022	All-Out Runapalooza
Erie Half Marathon	Erie, CO	21 August 2022	Erie Half Marathon
Staunton Rocks! Marathon & Half	Pine, CO	27 August 2022	Staunton Rocks! Marathon & Half
Thirsty 13 Half Marathon	Durango, CO	27 August 2022	Thirsty 13 Half Marathon
Labor Day Half Marathon	Parker, CO	5 September 2022	Labor Day Half Marathon
Black Squirrel Half Marathon	Fort Collins, CO	10 September 2022	Black Squirrel Half Marathon
Mountain RATS	Eagle, CO	17 September 2022	Mountain RATS
Autumn Color Run	Buena Vista, CO	17 September 2022	Autumn Color Run
Golden Leaf Half Marathon	Aspen, CO	17 September 2022	Golden Leaf Half Marathon
All-Out Fallfest	Westminster, CO	17 September 2022	All-Out Fallfest
Superhero Event	Greeley, CO	17 September 2022	Superhero Event
Fall Equinox Marathon	Fort Collins, CO	18 September 2022	Fall Equinox Marathon
Prairie Dog Half and 10K/5K	Westminster, CO	24 September 2022	Prairie Dog Half and 10K/5K
Colorado Springs Marathon	Colorado Springs, CO	1 October 2022	Colorado Springs Marathon
Windsor Marathon	Windsor, CO	9 October 2022	Windsor Marathon
Boulderthon: Downtown Boulder Marathon & Half Marathon	Boulder, CO	9 October 2022	Boulderthon: Downtown Boulder Marathon & Half Marathon

Marathons

Name	City	Date	Website
Run Through Time Marathon	Salida, CO	12 March 2022	Run Through Time Marathon
Runs With Scissors Races	Brighton, CO	2 April 2022	Runs With Scissors Races
All-Out Beat the Heat	Westminster, CO	16 April 2022	All-Out Beat the Heat
Desert RATS Trail Running Festival	Fruita, CO	16 April 2022	Desert RATS Trail Running Festival
Valkyrie Trail Race	Colorado Springs, CO	14 May 2022	Valkyrie Trail Race
Denver Colfax Marathon	Denver, CO	15 May 2022	Denver Colfax Marathon
REVEL Rockies	Denver, CO	4 June 2022	REVEL Rockies
Runoff Runoff	Creede, CO	4 June 2022	Runoff Runoff
Steamboat Marathon	Steamboat Springs, CO	5 June 2022	Steamboat Marathon
South Park Trail Marathon	Fairplay, CO	11 June 2022	South Park Trail Marathon
Leadville Trail Marathon & Heavy Half	Leadville, CO	18 June 2022	Leadville Trail Marathon & Heavy Half
Silverton Alpine Marathon & 50K	Silverton, CO	9 July 2022	Silverton Alpine Marathon & 50K
Mt Sneffels Marathon	Ouray, CO	20 August 2022	Mt Sneffels Marathon
Staunton Rocks! Marathon & Half	Pine, CO	27 August 2022	Staunton Rocks! Marathon & Half
All-Out Fallfest	Westminster, CO	17 September 2022	All-Out Fallfest
Mountain RATS	Eagle, CO	17 September 2022	Mountain RATS
Fall Equinox Marathon	Fort Collins, CO	18 September 2022	Fall Equinox Marathon
Colorado Springs Marathon	Colorado Springs, CO	1 October 2022	Colorado Springs Marathon
Boulderthon: Downtown Boulder Marathon & Half Marathon	Boulder, CO	9 October 2022	Boulderthon: Downtown Boulder Marathon & Half Marathon
Windsor Marathon	Windsor, CO	9 October 2022	Windsor Marathon
Blue Sky Trail Marathon	Fort Collins, CO	15 October 2022	Blue Sky Trail Marathon