Races within 50 miles of Thornton, CO on Saturdays
Evergreen, CO
Golddigger 5K
Jul 29, 2023
Elk Meadow Trail Race
Jun 22, 2024
Evergreen Mountain 15K
Jul 13, 2024
Staunton State Park 20K
Aug 3, 2024
Bergen Peak Half Marathon
Sep 14, 2024
Longmont, CO
Paws in the Park
Oct 7, 2023
Sole Mates 5K
Nov 4, 2023
Longmont Turkey Trot
Nov 11, 2023
Main Street Fun Run
Dec 9, 2023
Girls on the Run 5K
May 11, 2024
Sunrise Stampede 5K
Aug 10, 2024
Longmont Kids Only Triathlon
Aug 24, 2024
Longmont Try-a-Tri
Aug 24, 2024
Colorado Brewery Running Series
Dec 7, 2024
Thornton, CO
Lucky Dog Dash
Mar 2, 2024
Unicorn 5K North
Jun 22, 2024
Pirates Run for Booty
Jul 27, 2024
Its Fall Yall 5K and K9 Canter 1M Fun Run
Oct 5, 2024
Winterfest 5K
Dec 14, 2024
Greeley, CO
Too Hot to Trot 5K
Jun 17, 2023
Run for Women to Women
Mar 23, 2024
Frontier Academy Community 5K
Aug 24, 2024
Superhero Event
Sep 21, 2024
Denver, CO
Barkin Dog Duathlon
Apr 22, 2023
D'Evelyn Dash
Aug 26, 2023
Festival For Life: AIDS Walk & Run Colorado
Aug 26, 2023
Blue Shoe Run for Prostate Cancer
Sep 9, 2023
Roadrunners 5K
Sep 30, 2023
Dare Great Things Cross Country Challenge
Oct 7, 2023
Grace Race 5K
Oct 7, 2023
Miles for Moms
Oct 7, 2023
UpStander 5K
Oct 7, 2023
Hell Week Fitness 5K by Orangetheory Colorado
Oct 28, 2023
Chilly Cheeks Duathlon
Feb 24, 2024
Cupid's Undie Run
Feb 24, 2024
Fight for Air Climb
Apr 27, 2024
Denver Colfax Marathon
May 19, 2024
May 18, 2024
Girls on the Run 5K
May 18, 2024
REVEL Rockies
Jun 1, 2024
Rockies 5K
Jun 1, 2024
Jodi's Race 5K
Jun 8, 2024
Miles for Melanoma
Jun 8, 2024
More Life 5K
Jun 15, 2024
Denver Pride 5K
Jun 22, 2024
Colorado Brewery Running Series
Jul 6, 2024
Cookie Chase 5K
Jul 13, 2024
Denver CF Climb
Jul 27, 2024
Impact Uganda 5K/10K
Aug 17, 2024
Miles for Migraine
Aug 17, 2024
Donot Stop
Aug 31, 2024
Sloan's Lake Search Party (SLSP)! Marathon Hourly Loop Race
Sep 7, 2024
Colorado Brewery Running Series
Sep 14, 2024
Denver 5K
Sep 14, 2024
Move Forward 5K & 10K
Sep 21, 2024
Liberty Energy 5K
Oct 19, 2024
Colorado Brewery Running Series
Oct 26, 2024
MonsterDash Run
Oct 26, 2024
City Park 5K
Nov 2, 2024
Colorado Brewery Running Series
Nov 2, 2024
Denver Veterans Day Run
Nov 9, 2024
Pumpkin Pie 5K/10K
Nov 16, 2024
Santa's Dash for Cash
Dec 21, 2024
Aurora, CO
Smoky Hill Community 5K
Aug 19, 2023
Aurora Polar Plunge and 5K
Apr 6, 2024
The Hero's Journey 5K
Jul 20, 2024
Run for the Ring 5K
Aug 3, 2024
WW Clyde Family Sports Day
Aug 10, 2024
RexRun For PAWSitivity 5K Trail Run/Walk
Sep 7, 2024
SheSprints
Sep 7, 2024
OCA Panda Run
Sep 21, 2024
Colorado Brewery Running Series
Oct 12, 2024
Idaho Springs, CO
Halloween Fun Run
Oct 28, 2023
Georgetown to Idaho Springs Half Marathon
Aug 10, 2024
Georgetown, CO
Slacker Half Marathon
Jun 22, 2024
Georgetown to Idaho Springs Half Marathon
Aug 10, 2024
Colorado Brewery Running Series
Sep 28, 2024
Centennial, CO
Pancakes for PDCD 5K/10K
Jul 29, 2023
Hoofin' It Through the Hollows 5K
Oct 21, 2023
High Line Canal Run
May 11, 2024
Arapahoe Warrior 5K
Aug 3, 2024
Parker, CO
Love 'em Or Leave 'em Valentine's Day 5K/10K
Feb 10, 2024
Cattle Crossing 5K
Jun 15, 2024
Kids' TRY-athlon
Jul 13, 2024
So Long to Summer 5K
Sep 21, 2024
Westminster, CO
Reach For Recovery 5K
Jun 3, 2023
The Day Quest - Fast Mile
Nov 18, 2023
Time Travel Half Marathon
Apr 20, 2024
Colorado Brewery Running Series
May 4, 2024
All-Out Dog Days
Jul 13, 2024
Holy Cow Trail Stampede
Aug 10, 2024
Jog in the Bog 5K
Aug 24, 2024
Westminster Trail Race
Aug 24, 2024
All-Out Fall Fest
Sep 14, 2024
Prairie Dog Half and 10K/5K
Sep 28, 2024
Big Waves Family 5K
Oct 5, 2024
Not So Flatt Breast Cancer Awareness Run/Walk
Oct 5, 2024
Spooky Sprint - Denver
Oct 5, 2024
All-Out Fa La La
Dec 7, 2024
Six Pack Series Winter Westminster 1 Mile and 5K
Jan 4, 2025
Six Pack Series Winter Westminster 2 Mile and 5K
Jan 11, 2025
Six Pack Series Winter Westminster 5K
Jan 25, 2025
Six Pack Series Winter Westminster 4 Mile and 5K
Feb 1, 2025
Six Pack Series Winter Westminster 5 Mile and 5K
Feb 8, 2025
Six Pack Series Winter Westminster 5K and 10K
Feb 22, 2025
Erin Go Braugh 7.77K
Mar 15, 2025
All-Out Beat the Heat
Apr 19, 2025
Winter Park, CO
Winter Wonderland 5K
Feb 3, 2024
Alpenglow Bounce 5K
Mar 9, 2024
Byers Peak Stampede
Aug 24, 2024
Elevation Everest - The Half Everest
Sep 28, 2024
Englewood, CO
Denver Athletics All Comers Spring Track Series
May 27, 2023
Front Range Classic
May 25, 2024
Centennial Airport Runway 5K
Jun 1, 2024
Colorado Brewery Running Series
Jun 1, 2024
Jeremy Bitner Fallen Officer 5K/10K Run
Jun 29, 2024
Erie, CO
Eerie Erie
Oct 28, 2023
Berthoud, CO
Berthoud Spartans 5K
Jun 3, 2023
Berthoud Family Fun Run
Aug 19, 2023
Bob Turner Classic 5K
May 4, 2024
Louisville, CO
Coyote Chase 5K
Aug 19, 2023
Louisville Trail Race
Sep 28, 2024
The Pretzel Run Colorado
Oct 12, 2024
Santa Claus Runs
Dec 14, 2024
Lyons, CO
Lucky Lyons
Mar 9, 2024
Castle Rock, CO
ShamROCK Stampede
Mar 16, 2024
Eggstravaganza Challenge 5K
Mar 30, 2024
Rock Hawk Trail Races
Apr 27, 2024
Memorial Day Run & March
May 18, 2024
Climb 4 Change
Jun 8, 2024
Prairie Dog Half and 10K - Castle Rock
Jul 20, 2024
Reece's Roundup
Aug 3, 2024
Castle Rock Trail Festival
Oct 5, 2024
Loveland, CO
Sweetheart Classic
Feb 10, 2024
Run the Ranch
Apr 5, 2024
Apr 6, 2024
Earth Day 5K/10K
Apr 20, 2024
NOCO Half Marathon & 10K
Apr 27, 2024
New Vision 5K
May 4, 2024
Run For The Trees
May 4, 2024
Run for the Trees - BSBF 2 Mile Run
May 4, 2024
Running for Hope
Jun 15, 2024
Sierra's Race 5K
Jun 15, 2024
Loveland Lake to Lake Triathlon
Jun 22, 2024
NoCo All-Comers Track Meet Series #2
Jun 29, 2024
NoCo All-Comers Track Meet Series #3
Jul 20, 2024
Valley 5000
Aug 17, 2024
Long View Marathon
Oct 12, 2024
Bell Ringer 4 Miler
Nov 9, 2024
Toy Drop
Dec 7, 2024
Nederland, CO
Ned Ned Run
Sep 9, 2023
Broomfield, CO
Jag Jog 5K
Sep 14, 2024
Miner Gold Rush
Sep 28, 2024
Runway 5K Run for the Angels
Sep 28, 2024
Highlands Ranch, CO
Q Man Classic
Aug 12, 2023
ThunderRidge Grizzly 2 Mile
Aug 19, 2023
HRCA St. Patrick's Day 5K
Mar 23, 2024
HRCA Mother's Day 5K
May 11, 2024
Mountain Ridge Trail Race
Jun 1, 2024
Half K For Hope
Jul 27, 2024
Unicorn 5K South
Aug 3, 2024
HRCA Backcountry Wilderness Half Marathon
Nov 2, 2024
Littleton, CO
Lookin For A Cure Denver
Sep 23, 2023
Get Your Rear in Gear - Denver Metro
Oct 7, 2023
Colorado Friends of First Responders
May 11, 2024
Colorado Friends of First Responders Annual Run
May 11, 2024
Unicorn 5K
Jun 8, 2024
The 80s Run
Jun 22, 2024
Before The Fourth 5K
Jun 29, 2024
Heritage Eagles 5K
Jul 20, 2024
Respect Life 5K
Jul 20, 2024
HRCA Splash Mash Dash Kids Triathlon
Aug 3, 2024
Colorado 6 Dot Dash
Aug 24, 2024
HRCA Oktoberfest 5K
Sep 14, 2024
Miles 4 Madison 5K
Sep 21, 2024
HRCA Wildcat Mountain Trail Races
Sep 28, 2024
Arvada, CO
Lisa Nelson's Mustang Stampede
Sep 16, 2023
Forge 5K
Sep 30, 2023
Hope House 5K & Fun Run
May 4, 2024
CMRA Tucker Lake 6.5 Mile
May 11, 2024
All-Out Summer Breeze
Jun 8, 2024
All-Out Runapalooza
Aug 3, 2024
Colorado Brewery Running Series
Aug 10, 2024
Apex Foundation Trick or Trot 5K
Oct 26, 2024
10K Turkey Trek & 5K Turkey Trot
Nov 23, 2024
Colorado Brewery Running Series
Nov 30, 2024
All-Out Polar Prowl
Jan 11, 2025
Heart Throb 5K
Feb 15, 2025
All-Out Mardi Crawl
Feb 22, 2025
Estes Park, CO
Duck Waddle 5K
May 4, 2024
Estes Park Marathon
Jun 16, 2024
Jun 15, 2024
Longs Peak 5 Miler
Jun 15, 2024
Rocky Mountain Half Marathon
Aug 2, 2024
Aug 3, 2024
Rut Run 5K
Sep 28, 2024
Boulder, CO
Mile High Mile
Jul 29, 2023
Transperfect Victory Lap 5K
Aug 19, 2023
Boulder XC Series Meet 1
Oct 14, 2023
Boulder XC Series Meet 2
Oct 28, 2023
Colleen De Reuck XC Classic
Nov 11, 2023
BRR Masters Invite Indoor Mile
Jan 13, 2024
The Day Quest - Flatirons Vista to Spring Brook
Mar 23, 2024
Boulder Rez Half
Apr 13, 2024
South Boulder Creek parkrun
Mar 22, 2025
Mar 29, 2025
Apr 5, 2025
Apr 13, 2024
48 more
The Diabetes Link at CU 5K Run/Walk
Apr 13, 2024
Colorado Triathlon
Jun 1, 2024
Ironman 70.3 Boulder
Jun 8, 2024
Tri Boulder
Jul 20, 2024
Boulder Rez Marathon
Aug 3, 2024
Pearl Street Mile
Aug 3, 2024
Boulder Sunset 10K/5K
Aug 24, 2024
Boulder Sunset Triathlon
Aug 24, 2024
Harvest Moon Long Course Triathlon
Sep 7, 2024
ColderBOLDER
Dec 7, 2024
Brighton, CO
Raptor Run
Apr 6, 2024
Five Star Fun Run and 5K
Apr 20, 2024
Runs With Scissors Races
Apr 27, 2024
Adams County Foster Care 5K
May 4, 2024
I Can 5K with Deja Vu 10K
Jul 13, 2024
Gummball 5K
Oct 19, 2024
Lafayette, CO
Feeding the 5K/5K
May 20, 2023
Waneka Classic
Sep 9, 2023
Colorado Brewery Running Series
May 18, 2024
Lone Tree, CO
For a City 5K
Sep 16, 2023
Freedom 4 Miler
Jun 29, 2024
South Suburban Youth & Adult Beginner TRYathlon
Jul 27, 2024
Morrison, CO
Great Trailhead Foot Race
Oct 19, 2024
Allenspark, CO
Run Like the Wind
Aug 31, 2024
Wheat Ridge, CO
Feed Your Soul Fund Turkey Trot
Nov 18, 2023
Colorado Brewery Running Series
Aug 17, 2024
Pine, CO
Suffer Better Fall Trail Run
Oct 14, 2023
Running Up For Air - Staunton Rocks
Feb 24, 2024
Feb 25, 2024
North Fork 50M/50K
Jun 1, 2024
Staunton Rocks! Marathon & Half
Aug 24, 2024
Sawmill Trail Runs
Dec 7, 2024
Windsor, CO
Windsor Wiesn Mile and 5 Mile
Sep 23, 2023
Lucky Brew Race
Mar 16, 2024
Red, White and Brew 5K, 10K & Half Marathon
Jun 22, 2024
Santa Catch 5K & 10K
Dec 14, 2024
Greenwood Village, CO
Selian 5K
Sep 16, 2023
Lakewood, CO
Bark & Brew 5K
Sep 9, 2023
Ram Run 5K
Mar 30, 2024
Federal Cup 5K
May 4, 2024
GiGi's 5K
May 4, 2024
Littlefoot Triathlon
Sep 7, 2024
Bear Chase Race - Half Marathon & 10K
Sep 29, 2024
Sep 28, 2024
Commerce City, CO
Night Nation Run - Denver
Sep 28, 2024
Conifer, CO
Elevation Run/Walk
Jul 27, 2024
Johnstown, CO
Johnstown BBQ Day 5K
Jun 1, 2024
Fort Lupton, CO
WineRun Denver at Salt and Acres
Jun 15, 2024
Empire, CO
Devil on the Divide
Sep 7, 2024
Firestone, CO
Carbon Valley Half Marathon
May 11, 2024
Dumont, CO
Canine On the Creek
May 18, 2024
Northglenn, CO
Colorado Brewery Running Series
May 11, 2024
Byers, CO
BINGO! Trail Runs
Nov 9, 2024
Larkspur, CO
Greenland Trail Races
May 4, 2024
Keenesburg, CO
Into The Wild Running Festival
Jun 8, 2024
Sedalia, CO
Indian Creek Trail Runs
Oct 12, 2024
Fort Collins, CO
Colorado Run
May 27, 2023
Be a Hero 5K
Aug 19, 2023
CSU Homecoming 5K
Oct 14, 2023
Mustang Music 5K
Oct 14, 2023
Run Fur Fun 5K
Oct 28, 2023
Turkey Donut Predict Run
Nov 18, 2023
Sweaty Sweater 5K
Dec 9, 2023
Polar 5K & Polar Bear Plunge
Jan 20, 2024
Sharin' O' the Green 5K
Mar 16, 2024
CSU International Run for Relief 5K
Mar 23, 2024
Healthy Kids Running Series
Apr 27, 2024
May 4, 2024
May 18, 2024
Apr 20, 2024
1 more
Quad Rock 50
May 11, 2024
Fire Hydrant 5K
Jun 1, 2024
StepUp For Women and Recovery
Jun 1, 2024
XTERRA Lory Triathlon
Jun 15, 2024
Colorado Brewery Running Series
Jul 13, 2024
Human Race
Aug 10, 2024
Long View Marathon
Oct 12, 2024
Blue Sky Trail Marathon
Oct 19, 2024
Colorado 24 Hour Run
Nov 2, 2024
Deckers, CO
Battle by the Brook
Sep 21, 2024
Frederick, CO
Miner's Day 5K
Sep 16, 2023
Cerus DryTri
Mar 2, 2024
La Salle, CO
Cerus Fitness Festival
Sep 14, 2024
Severance, CO
Howl-O-Ween 5K
Oct 21, 2023
Great Western Trail Race
Apr 20, 2024
Severance Days 5K
Aug 24, 2024
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Event Category
Click Here to find out what Classic, Multisport, and Variety mean.
To narrow your search by a distance or event type, you will need to select Classic, Multisport, or Variety first.
To narrow your search by a distance or event type, you will need to select Classic, Multisport, or Variety first.
City Location
1. Barkin Dog Duathlon
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Past DateApr 22, 2023Saturday
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sprint, supersprint duathlon
More Information
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Denver, CO
9 miles point to pointDenver County, CO
2. Feeding the 5K/5K
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Past DateMay 20, 2023Saturday
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5K trail run
More Information
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Lafayette, CO
11 miles point to pointBoulder County, CO
3. Colorado Run
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Past DateMay 27, 2023Saturday
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10K, 5K run
More Information
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Fort Collins, CO
50 miles point to pointLarimer County, CO
4. Denver Athletics All Comers Spring Track Series
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Past DateMay 27, 2023Saturday
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track meet
More Information
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Englewood, CO
15 miles point to pointArapahoe County, CO
5. Berthoud Spartans 5K
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Past DateJun 3, 2023Saturday
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5K run
More Information
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Berthoud, CO
31 miles point to pointLarimer County, CO
6. Reach For Recovery 5K
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Past DateJun 3, 2023Saturday
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5K run
More Information
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Westminster, CO
4 miles point to pointAdams County, COJefferson County, CO
7. Too Hot to Trot 5K
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Past DateJun 17, 2023Saturday
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5K run
More Information
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Greeley, CO
41 miles point to pointWeld County, CO
8. Golddigger 5K
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Past DateJul 29, 2023Saturday
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5K run
More Information
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Evergreen, CO
24 miles point to pointJefferson County, CO
9. Mile High Mile
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Past DateJul 29, 2023Saturday
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1M run
More Information
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Boulder, CO
19 miles point to pointBoulder County, CO
10. Pancakes for PDCD 5K/10K
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Past DateJul 29, 2023Saturday
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10K, 5K run
Virtual OptionMore Information
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Centennial, CO
20 miles point to pointArapahoe County, CO
11. Q Man Classic
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Past DateAug 12, 2023Saturday
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5K run
More Information
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Highlands Ranch, CO
22 miles point to pointDouglas County, CO
12. Be a Hero 5K
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Past DateAug 19, 2023Saturday
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5K run
More Information
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Fort Collins, CO
50 miles point to pointLarimer County, CO
13. Berthoud Family Fun Run
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Past DateAug 19, 2023Saturday
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2M run | kids run
More Information
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Berthoud, CO
31 miles point to pointLarimer County, CO
14. Coyote Chase 5K
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Past DateAug 19, 2023Saturday
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5K run
More Information
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Louisville, CO
11 miles point to pointBoulder County, CO
15. Smoky Hill Community 5K
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Past DateAug 19, 2023Saturday
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5K run
More Information
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Aurora, CO
12 miles point to pointArapahoe County, CO
16. ThunderRidge Grizzly 2 Mile
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Past DateAug 19, 2023Saturday
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2M run
More Information
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Highlands Ranch, CO
22 miles point to pointDouglas County, CO
17. Transperfect Victory Lap 5K - Boulder
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Past DateAug 19, 2023Saturday
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5K run
More Information
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Boulder, CO
19 miles point to pointBoulder County, CO
18. D'Evelyn Dash
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Past DateAug 26, 2023Saturday
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5K, 2K run
More Information
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Denver, CO
9 miles point to pointDenver County, CO
19. Festival For Life: AIDS Walk & Run Colorado
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Past DateAug 26, 2023Saturday
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5K run
More Information
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Denver, CO
9 miles point to pointDenver County, CO
20. Bark & Brew 5K
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Past DateSep 9, 2023Saturday
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5K run
More Information
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Lakewood, CO
13 miles point to pointJefferson County, CO
For the love of all that Is good And moisture wicking...
Though we Try To be accurate And On top Of things... Race details can change When we aren't lookin. And once in a while we simply make a mistake.
ALWAYS visit the race's website for the most complete and accurate race information.
ALWAYS visit the race's website for the most complete and accurate race information.