Upcoming Races within 50 miles of Windsor, CO
Longmont, CO
Colorado Brewery Running Series
Apr 21, 2024
Boulder Track Series Meet 2
Apr 28, 2024
Girls on the Run 5K
May 11, 2024
Frank Shorter Track Classic
May 12, 2024
Longmont Half & 5k
Jul 4, 2024
Roger's River Run
Jul 12, 2024
Sunrise Stampede 5K
Aug 10, 2024
Outdoor Divas Sprint Triathlon
Aug 18, 2024
Longmont Kids Only Triathlon
Aug 24, 2024
Longmont Try-a-Tri
Aug 24, 2024
Colorado Brewery Running Series
Sep 15, 2024
Oktoberfest Sprint Triathlon
Sep 22, 2024
Colorado Brewery Running Series
Dec 7, 2024
Thornton, CO
RMRR Spring Marathon Training Series
Mar 24, 2024
Apr 28, 2024
Head and Neck Cancer A Hard Thing to Swallow 5K/10K
May 12, 2024
Unicorn 5K North
Jun 22, 2024
Pirates Run for Booty
Jul 27, 2024
RMRR Trophy Series - September
Sep 8, 2024
Its Fall Yall 5K and K9 Canter 1M Fun Run
Oct 5, 2024
Winterfest 5K
Dec 14, 2024
Greeley, CO
Greeley Freedom 5K Walk and Run
Jul 4, 2024
Frontier Academy Community 5K
Aug 24, 2024
Superhero Event
Sep 21, 2024
Cheyenne, WY
Cinco de Mayo 5K
May 4, 2024
Run Like A Mother 5K
May 11, 2024
Dog Jog 5K
May 18, 2024
FORMAK 5K
Jun 8, 2024
Spring into Green 5K
Jun 15, 2024
Kristy's Kindness 5K
Jun 22, 2024
Superday 5K
Jun 22, 2024
USI Statewide 5K
Jun 29, 2024
Cheyenne Firecracker 5K and 10K
Jul 4, 2024
Will Run for Cannoli 5K
Jul 13, 2024
Cheyenne Schools Foundation - Run for 1
Sep 14, 2024
Cowboy Tough Adventure Race
Aug 9, 2025
Steamboat Springs, CO
Wild West Relay
Aug 2, 2024
Westminster, CO
Time Travel Half Marathon
Apr 20, 2024
Colorado Brewery Running Series
May 4, 2024
Colorado Women's Classic - Westminster
May 12, 2024
All-Out Dog Days
Jul 13, 2024
Summer Sizzler
Jul 21, 2024
Holy Cow Trail Stampede
Aug 10, 2024
Eye Love Logan and Zoe 5K
Aug 11, 2024
Hometown Half Marathon
Aug 11, 2024
Westminster Trail Race
Aug 24, 2024
All-Out Fall Fest
Sep 14, 2024
Prairie Dog Half and 10K/5K
Sep 28, 2024
Not So Flatt Breast Cancer Awareness Run/Walk
Oct 5, 2024
Spooky Sprint - Denver
Oct 5, 2024
Westy Half & 5K
Oct 13, 2024
All-Out Fa La La
Dec 7, 2024
Candy Cane Run
Dec 15, 2024
Candy Cane Course
Dec 22, 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
Erie, CO
Healthy Kids Running Series
May 19, 2024
May 26, 2024
Jun 2, 2024
Jun 9, 2024
1 more
Erie Half & 5K
Aug 18, 2024
Berthoud, CO
Bob Turner Classic 5K
May 4, 2024
Louisville, CO
Colorado 13er
Jun 2, 2024
Let Freedom Run
Jul 4, 2024
Louisville Trail Race
Sep 28, 2024
The Pretzel Run Colorado
Oct 12, 2024
MonsterDash Run
Oct 27, 2024
Louisville Turkey Trot
Nov 28, 2024
Santa Claus Runs
Dec 14, 2024
Arctic Prairie Dog Half
Jan 19, 2025
Loveland, CO
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
Crazy Legs 10K+ Trail Run
Jun 2, 2024
NoCo All-Comers Track Meet Series #1
Jun 12, 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
Loveland Liberty 5K
Jul 4, 2024
NoCo All-Comers Track Meet Series #3
Jul 20, 2024
NoCo All-Comers Track Meet Series #4
Jul 31, 2024
Valley 5000
Aug 17, 2024
Honey Bee Hustle
Sep 8, 2024
Last Call Triathlon
Sep 29, 2024
Long View Marathon
Oct 12, 2024
Narrowleaf Lake Run
Oct 27, 2024
Bell Ringer 4 Miler
Nov 9, 2024
Huffin' for Stuffin' 2-Mile Fun Run
Nov 28, 2024
Toy Drop
Dec 7, 2024
Broomfield, CO
Jag Jog 5K
Sep 14, 2024
Miner Gold Rush
Sep 28, 2024
Runway 5K Run for the Angels
Sep 28, 2024
Broomfield Turkey Day 5K/10K
Nov 28, 2024
Arvada, CO
Hope House 5K & Fun Run
May 4, 2024
CMRA Tucker Lake 6.5 Mile
May 11, 2024
Miles for Smiles 5K
May 19, 2024
All-Out Summer Breeze
Jun 8, 2024
Father's Day Classic
Jun 16, 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
Resolute Runner 5K
Jan 1, 2025
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
South Boulder Creek parkrun
Mar 22, 2025
Mar 29, 2025
Apr 6, 2024
Apr 13, 2024
48 more
Dash & Dine 5K Series
Apr 30, 2024
May 7, 2024
May 14, 2024
May 21, 2024
Boulder Mothers Day Run
May 12, 2024
BOLDERBoulder 10K
May 27, 2024
Boulder Stroke & Stride Series
May 30, 2024
Jun 5, 2024
Jun 13, 2024
Jun 20, 2024
5 more
Colorado Triathlon
Jun 1, 2024
BRR All Comers Summer Track and Field Series
Jun 6, 2024
Jun 20, 2024
Jul 18, 2024
Aug 1, 2024
Ironman 70.3 Boulder
Jun 8, 2024
Boulder Sunrise 10K and 5K
Jun 23, 2024
Boulder Sunrise Triathlon
Jun 23, 2024
Buffs4Life Kyle MacIntosh Memorial Fun Run
Jun 23, 2024
Sunset Trail Running Festival
Jun 23, 2024
Colorado Brewery Running Series
Jun 30, 2024
Avery Brewing Company Four on the Fourth 4K
Jul 4, 2024
Boulder Peak Triathlon
Jul 14, 2024
Tri Boulder
Jul 20, 2024
Boulder Rez Marathon
Aug 3, 2024
Pearl Street Mile
Aug 3, 2024
Rocky Mountain Tri Fest
Aug 11, 2024
Boulder Sunset 10K/5K
Aug 24, 2024
Boulder Sunset Triathlon
Aug 24, 2024
Harvest Moon Long Course Triathlon
Sep 7, 2024
Boulderthon: Downtown Boulder Marathon
Sep 29, 2024
Alpine Bank Boulder Thanksgiving Day 5K
Nov 28, 2024
ColderBOLDER
Dec 7, 2024
Lucky Leprechaun 5K
Mar 16, 2025
Brighton, CO
Five Star Fun Run and 5K
Apr 20, 2024
Blue Heron Half and 5K
Apr 21, 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
Barr Lake Trail Race
Jul 14, 2024
Lafayette, CO
Colorado Brewery Running Series
May 18, 2024
Allenspark, CO
Run Like the Wind
Aug 31, 2024
Eldorado Springs, CO
Eldorado Springs Run for the Cure
Aug 15, 2024
Windsor, CO
Red, White and Brew 5K, 10K & Half Marathon
Jun 22, 2024
Windsor Marathon
Oct 6, 2024
Pelican Lakes Turkey Trot
Nov 28, 2024
Santa Catch 5K & 10K
Dec 14, 2024
Commerce City, CO
Night Nation Run - Denver
Sep 28, 2024
Wild For Life Triathlon
Oct 13, 2024
Johnstown, CO
Johnstown BBQ Day 5K
Jun 1, 2024
Fort Lupton, CO
WineRun Denver at Salt and Acres
Jun 15, 2024
Firestone, CO
Carbon Valley Half Marathon
May 11, 2024
Northglenn, CO
Colorado Brewery Running Series
May 11, 2024
Keenesburg, CO
Into The Wild Running Festival
Jun 8, 2024
Fort Collins, CO
Healthy Kids Running Series
Apr 27, 2024
May 4, 2024
May 18, 2024
Apr 20, 2024
1 more
Flying Pig 5K
Apr 28, 2024
Colorado Marathon
May 5, 2024
Quad Rock 50
May 11, 2024
Healing Warriors Program 5K Fun Run
May 19, 2024
Fire Hydrant 5K
Jun 1, 2024
StepUp For Women and Recovery
Jun 1, 2024
XTERRA Lory Triathlon
Jun 15, 2024
FireKracker 5K
Jul 4, 2024
Colorado Brewery Running Series
Jul 13, 2024
Wild West Relay
Aug 2, 2024
Lory Summer Trail Series
Aug 6, 2024
Aug 27, 2024
Aug 20, 2024
Aug 13, 2024
Mountain Ave Mile
Aug 9, 2024
Human Race
Aug 10, 2024
Fall Equinox Marathon
Sep 22, 2024
Colorado Brewery Running Series
Oct 6, 2024
Long View Marathon
Oct 12, 2024
Blue Sky Trail Marathon
Oct 19, 2024
Colorado 24 Hour Run
Nov 2, 2024
Resolution Run 5K
Dec 31, 2024
La Salle, CO
Cerus Fitness Festival
Sep 14, 2024
Red Feather Lakes, CO
5K Fun Run of Red Feather Lakes
Jul 6, 2024
Red Feather Trail Jamboree
Sep 21, 2024
Sep 20, 2024
Sep 22, 2024
Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
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.
1. Earth Day 5K/10K
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Apr 20, 2024Saturday
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10K, 5K run | kids run
More Information
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Loveland, CO
11 miles point to pointLarimer County, CO
2. Five Star Fun Run and 5K
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Apr 20, 2024Saturday
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5K, 1M run
More Information
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Brighton, CO
34 miles point to pointAdams County, CO
3. Great Western Trail Race
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Apr 20, 2024Saturday
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13.1M, 10K, 5K run | kids run
More Information
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Severance, CO
4 miles point to pointWeld County, CO
4. Healthy Kids Running Series - Fort Collins
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Apr 20, 2024Saturday
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kids run
More Information
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Fort Collins, CO
12 miles point to pointLarimer County, CO
5. South Boulder Creek parkrun
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Apr 20, 2024Saturday
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5K run
More Information
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Boulder, CO
38 miles point to pointBoulder County, CO
6. Time Travel Half Marathon
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Apr 20, 2024Saturday
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13.1M, 10K, 5K run
More Information
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Westminster, CO
45 miles point to pointAdams County, COJefferson County, CO
7. Blue Heron Half and 5K
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Apr 21, 2024Sunday
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13.1M, 5K run
More Information
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Brighton, CO
34 miles point to pointAdams County, CO
8. Colorado Brewery Running Series
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Apr 21, 2024Sunday
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5K run
More Information
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Longmont, CO
24 miles point to pointBoulder County, CO
9. Healthy Kids Running Series - Fort Collins
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Apr 27, 2024Saturday
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kids run
More Information
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Fort Collins, CO
12 miles point to pointLarimer County, CO
10. NOCO Half Marathon & 10K
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Apr 27, 2024Saturday
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13.1M, 10K run
More Information
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Loveland, CO
11 miles point to pointLarimer County, CO
11. Runs With Scissors Races
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Apr 27, 2024Saturday
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50K, 26.2M, 13.1M run
More Information
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Brighton, CO
34 miles point to pointAdams County, CO
12. South Boulder Creek parkrun
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Apr 27, 2024Saturday
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5K run
More Information
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Boulder, CO
38 miles point to pointBoulder County, CO
13. Boulder Track Series Meet 2
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Apr 28, 2024Sunday
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track meet
More Information
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Longmont, CO
24 miles point to pointBoulder County, CO
14. Flying Pig 5K
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Apr 28, 2024Sunday
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5K run | kids run
More Information
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Fort Collins, CO
12 miles point to pointLarimer County, CO
15. RMRR Spring Marathon Training Series
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Apr 28, 2024Sunday
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20M, 10M run
More Information
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Thornton, CO
42 miles point to pointAdams County, CO
16. Dash & Dine 5K Series
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Apr 30, 2024Tuesday
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5K run
More Information
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Boulder, CO
38 miles point to pointBoulder County, CO
17. Adams County Foster Care 5K
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May 4, 2024Saturday
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5K, 1M run
More Information
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Brighton, CO
34 miles point to pointAdams County, CO
18. Bob Turner Classic 5K
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May 4, 2024Saturday
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5K run
More Information
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Berthoud, CO
15 miles point to pointLarimer County, CO
19. Cinco de Mayo 5K
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May 4, 2024Saturday
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5K run
More Information
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Cheyenne, WY
46 miles point to pointLaramie County, WY
20. Colorado Brewery Running Series
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May 4, 2024Saturday
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5K run
More Information
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Westminster, CO
45 miles point to pointAdams County, COJefferson 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.