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45 Running Colorado

Waneka Classic 5K - Lafayette, CO - genericImage-websiteLogo-285693-1782498453.674-0.bQpSsv.png

Waneka Classic 5K

Lafayette, CO

Sat - Aug 29, 2026

Sloth Run 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-271274-1768498380.3273-0.bPAstm.png

Sloth Run 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Aug 29, 2026

Running > 1 mile, 10k, 5k, Half Marathon

Glow & Roll: Illuminate What's Possible - Littleton, CO - genericImage-websiteLogo-280842-1776881700.5382-0.bP6raK.png

Glow & Roll: Illuminate What's Possible

Littleton, CO

Sat - Aug 29, 2026

Run for Hope - Colorado Springs - Colorado Springs, CO - genericImage-websiteLogo-272579-1773164574.4865-0.bPSfGE.png

Run for Hope - Colorado Springs

Colorado Springs, CO

Sat - Aug 29, 2026

Running > 5k, 1 mile

Run Like the Wind 5k / 2k / Dog Jog - Allenspark, CO - genericImage-websiteLogo-276804-1772751420.217-0.bPQGO8.jpg

Run Like the Wind 5k / 2k / Dog Jog

Allenspark, CO

Sat - Aug 29, 2026

T4est - Lyons, CO - running-4.png

T4est

Lyons, CO

Sun - Aug 30, 2026

RiseUP Elevation Challenge - Colorado Springs, CO - genericImage-websiteLogo-285017-1782912425.1967-0.bQrrwP.png

RiseUP Elevation Challenge

Colorado Springs, CO

Sep 1, 2026 - Sep 30, 2026

Raising the Barr - Brighton, CO - genericImage-websiteLogo-274375-1771971566.9093-0.bPNIpU.png

Raising the Barr

Brighton, CO

Sat - Sep 05, 2026

Demon Dash - Arvada, CO - genericImage-websiteLogo-258567-1753472815.9036-0.bOG98V.png

Demon Dash

Arvada, CO

Sat - Sep 05, 2026

Golden Harvest Half Marathon & 5k/10k - Denver - Denver, CO - genericImage-websiteLogo-266273-1761746441.7274-0.bPaH4j.png

Golden Harvest Half Marathon & 5k/10k - Denver

Denver, CO

Sat - Sep 05, 2026

Running > 5k, Half Marathon, 1 mile

The Beaver Run - Breckenridge, CO - genericImage-websiteLogo-286550-1783978630.2894-0.bQvvQg.png

The Beaver Run

Breckenridge, CO

Sat - Sep 05, 2026

Recovery Run of the Rockies 5K - Fort Collins, CO - genericImage-websiteLogo-286579-1783531162.3843-0.bQtOAA.png

Recovery Run of the Rockies 5K

Fort Collins, CO

Sat - Sep 05, 2026

Golden Harvest Half Marathon & 5k/10k - Colorado Springs - Colorado Springs, CO - genericImage-websiteLogo-266273-1761328678.0091-0.bO-74M.png

Golden Harvest Half Marathon & 5k/10k - Colorado Springs

Colorado Springs, CO

Sun - Sep 06, 2026

Running > Half Marathon, 5k, 1 mile

FCA All-Abilities Labor Day 5K - Loveland, CO - running-13.png

FCA All-Abilities Labor Day 5K

Loveland, CO

Mon - Sep 07, 2026

FCA All Abilities Labor Day 5K - Loveland, CO - genericImage-websiteLogo-258342-1752618413.37-0.bODTwT.png

FCA All Abilities Labor Day 5K

Loveland, CO

Mon - Sep 07, 2026

14th Annual Superhero Event

Greeley, CO

Sep 10, 2026 - Sep 27, 2026

Running > 5k, 1 mile, 10k

Res Hill Ruck - Pagosa Springs, CO - running-8.png

Res Hill Ruck

Pagosa Springs, CO

Fri - Sep 11, 2026

Running > Obstacle Race

The 10th Annual Run4Hope 5K for Schools - Monument, CO - genericImage-websiteLogo-282970-1779137239.0865-0.bQc3Rx.jpg

The 10th Annual Run4Hope 5K for Schools

Monument, CO

Sat - Sep 12, 2026

Black Squirrel Half Marathon - Bellvue, CO - genericImage-websiteLogo-243088-1733419557.6842-0.bNuEiL.png

Black Squirrel Half Marathon

Bellvue, CO

Sat - Sep 12, 2026

Running > Half Marathon

National Chocolate Day: Run for Chocolates 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-271314-1768498886.8218-0.bPAsBg.png

National Chocolate Day: Run for Chocolates 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Sep 12, 2026

Running > 5k, 10k, Half Marathon, 1 mile

The Denver 5k - Denver, CO - 9.2020-The-Denver-5k-Button-Teal.png

The Denver 5k

Denver, CO

Sat - Sep 12, 2026 @ 9:00 AM

For The City Network 5K - Greeley, CO - genericImage-websiteLogo-271977-1768357158.0529-0.bPzV0M.png

For The City Network 5K

Greeley, CO

Sat - Sep 12, 2026

Steele Trap Trail Run - Loma, CO - genericImage-websiteLogo-279617-1775422238.3325-0.bP0SSE.jpg

Steele Trap Trail Run

Loma, CO

Sat - Sep 12, 2026

Running > Marathon

31st El Grito 5k (2026) - Denver, CO - running-5.png

31st El Grito 5k (2026)

Denver, CO

Sun - Sep 13, 2026

FCRC Timber Social Run & Breakfast - Bellvue, CO - genericImage-websiteLogo-288641-1786045787.4845-0.bQDovB.png

FCRC Timber Social Run & Breakfast

Bellvue, CO

Sun - Sep 13, 2026

Wellington STAR Foundation 5K 10K - Wellington, CO - genericImage-websiteLogo-276422-1772488952.2806-0.bPPGJ4.jpg

Wellington STAR Foundation 5K 10K

Wellington, CO

Sat - Sep 19, 2026

Running > 10k, 5k

CEROX + IRON + IRON X - Frederick, CO - genericImage-websiteLogo-287801-1784932862.8138-0.bQy-N-.png

CEROX + IRON + IRON X

Frederick, CO

Sat - Sep 19, 2026

Stride for Hope 5K and Kids Fun Run - Delta, CO - genericImage-websiteLogo-287569-1785437314.6257-0.bQA5Yc.png

Stride for Hope 5K and Kids Fun Run

Delta, CO

Sat - Sep 19, 2026

Running > 1 mile

Denver: Walk With Autism and Resource Fair - Denver, CO - genericImage-websiteLogo-246871-1738616843.82-0.bNOtal.jpg

Denver: Walk With Autism and Resource Fair

Denver, CO

Sat - Sep 19, 2026

Champions for Children 5K Run/Walk - Commerce City, CO - genericImage-websiteLogo-237745-1726496882.1998-0.bM6ebY.png

Champions for Children 5K Run/Walk

Commerce City, CO

Sat - Sep 19, 2026