September Classic Races within 200 miles of Sidney, NE
Evergreen, CO
Bergen Peak Half Marathon
Sep 14, 2024
Longmont, CO
Colorado Brewery Running Series
Sep 15, 2024
Thornton, CO
RMRR Fall Marathon Training Series
Aug 27, 2023
Sep 24, 2023
Sep 10, 2023
RMRR Trophy Series - September
Sep 8, 2024
Greeley, CO
Superhero Event
Sep 21, 2024
Denver, CO
Sentir Venezolano 5K Walk / Run
Sep 17, 2023
Roadrunners 5K
Sep 30, 2023
Denver Broncos 7K
Sep 1, 2024
Roost Rebellion Relays
Sep 4, 2024
Blue Shoe Run for Prostate Cancer
Sep 7, 2024
Sloan's Lake Search Party (SLSP)! Marathon Hourly Loop Race
Sep 7, 2024
9/11 Heroes Run
Sep 8, 2024
Denver Rocks Run 5K/10K
Sep 8, 2024
Healthy Kids Running Series
Sep 8, 2024
Sep 15, 2024
Sep 29, 2024
Oct 6, 2024
1 more
Colorado Brewery Running Series
Sep 14, 2024
Denver 5K
Sep 14, 2024
Nun Run
Sep 15, 2024
Move Forward 5K & 10K
Sep 21, 2024
RiNo 5K
Sep 21, 2024
Colorado Springs, CO
Be Ovary Aware 5K
Sep 17, 2023
Race Against Suicide
Sep 17, 2023
PPCC Take the Night Back
Sep 21, 2023
Nielson Two Mile Challenge
Mar 1, 2025
Apr 5, 2025
May 3, 2025
Jun 1, 2024
8 more
Orangetheory 5K at Labor Day Lift Off
Sep 1, 2024
Colorado Springs Marathon
Sep 28, 2024
Hill City, SD
Operation RUSHMORE
Sep 28, 2024
Aurora, CO
Healthy Kids Running Series
Aug 25, 2024
Sep 22, 2024
Sep 8, 2024
Sep 29, 2024
1 more
RexRun For PAWSitivity 5K Trail Run/Walk
Sep 7, 2024
OCA Panda Run
Sep 21, 2024
Idaho Springs, CO
Flaming Foliage Relay
Sep 6, 2024
Woodland Park, CO
Pony Express Run
Sep 15, 2024
Golden, CO
Golden Gallop
Sep 22, 2024
Georgetown, CO
Colorado Brewery Running Series
Sep 28, 2024
Buena Vista, CO
Flaming Foliage Relay
Sep 6, 2024
Winter Park, CO
Elevation Everest - The Half Everest
Sep 28, 2024
Manitou Springs, CO
Pikes Peak Ascent and Marathon
Sep 22, 2024 - Marathon
Sep 21, 2024 - Ascent
Louisville, CO
Louisville Trail Race
Sep 28, 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
BackCountry 5K
Sep 15, 2024
Littleton, CO
Lions Roar 5K
Sep 17, 2023
Lookin For A Cure Denver
Sep 23, 2023
Second Wind Walk/Run
Sep 24, 2023
HRCA Oktoberfest 5K
Sep 14, 2024
Flyin' Lion 5K
Sep 15, 2024
Miles 4 Madison 5K
Sep 21, 2024
HRCA Wildcat Mountain Trail Races
Sep 28, 2024
Frisco, CO
Run the Rockies Half Marathon
Sep 21, 2024
Arvada, CO
Lisa Nelson's Mustang Stampede
Sep 16, 2023
Forge 5K
Sep 30, 2023
Run With The Wolves
Sep 29, 2024
Estes Park, CO
Rut Run 5K
Sep 28, 2024
Boulder, CO
South Boulder Creek parkrun
Mar 22, 2025
Mar 29, 2025
Apr 5, 2025
Apr 12, 2025
48 more
Friends of the National Center Science Stride 5K
Sep 14, 2024
Avery Brewing Company Oktoberfest 4K
Sep 22, 2024
Boulderthon: Downtown Boulder Marathon
Sep 29, 2024
Brighton, CO
Adams Half & 5K
Sep 17, 2023
Lafayette, CO
Waneka Classic
Sep 9, 2023
Lone Tree, CO
For a City 5K
Sep 16, 2023
Morrison, CO
RRCC Front Nine 5K
Sep 15, 2024
Wheat Ridge, CO
Farmers 5000
Sep 15, 2024
Windsor, CO
Windsor Wiesn Mile and 5 Mile
Sep 23, 2023
Bellvue, CO
Black Squirrel Half Marathon
Sep 7, 2024
Lakewood, CO
Bark & Brew 5K
Sep 9, 2023
Lakewood Trail Series
Sep 4, 2024
Sep 11, 2024
Sep 18, 2024
Sep 25, 2024
Tiger Prowl
Sep 15, 2024
Bear Chase Race - Half Marathon & 10K
Sep 29, 2024
Sep 28, 2024
Commerce City, CO
Night Nation Run - Denver
Sep 28, 2024
North Platte, NE
Doggy Dash 5K
Sep 7, 2024
Autumn River Run
Sep 14, 2024
Palmer Lake, CO
24 Hours of Palmer Lake
Sep 28, 2024
Woods Landing, WY
Jelm Mountain Run
Sep 28, 2024
Sterling, CO
Center of the Nation Series - Day 1
Sep 30, 2024
Monument, CO
Run4Hope 5K for Schools
Sep 21, 2024
Keystone, CO
Cirque Series - Arapahoe Basin
Sep 7, 2024
Empire, CO
Devil on the Divide
Sep 7, 2024
Gering, NE
Monument Marathon
Sep 28, 2024
Fort Collins, CO
Beef Sticks for Backpacks 5K Run/Walk
Sep 24, 2023
Fall Equinox Marathon
Sep 22, 2024
Frederick, CO
Miner's Day 5K
Sep 16, 2023
Keystone, SD
Mount Rushmore Half Marathon
Sep 21, 2024
Niwot, CO
St. Vrain for the Brain 5K
Sep 21, 2024
Red Feather Lakes, CO
Lederhosen Run
Sep 23, 2023
Red Feather Trail Jamboree
Sep 21, 2024
Sep 20, 2024
Sep 22, 2024
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| Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
| Featured Listings | ||||
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| No | Race Date | Race | Location | Options |
| 1 |
Sep 22, 2024
Sunday
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Fall Equinox Marathon
26.2M, 13.1M, 5M run
Virtual Option
More Information
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Fort Collins, CO
Larimer County, CO
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Boston Marathon Qualifier
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City Location
| No | Race Date | Race | Location | Options |
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| 1 |
Sep 1, 2024
Sunday
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Calarat Challenge Trail Running Festival
13.1M, 10K trail run
More Information
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Jamestown, CO
146 miles point to point
Boulder County, CO
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| 2 |
Sep 1, 2024
Sunday
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Denver Broncos 7K
7K run | kids run
More Information
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Denver, CO
144 miles point to point
Denver County, CO
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| 3 |
Sep 1, 2024
Sunday
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Orangetheory 5K at Labor Day Lift Off
5K run
More Information
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Colorado Springs, CO
187 miles point to point
El Paso County, CO
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| 4 |
Sep 2, 2024
Monday
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Labor Day Half Marathon
13.1M, 10K, 5K run
More Information
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Parker, CO
147 miles point to point
Douglas County, CO
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| 5 |
Past Date
Sep 3, 2023
Sunday
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Breck Crest Mountain Marathon
23M, 13.1M, 10K trail run
More Information
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Breckenridge, CO
199 miles point to point
Summit County, CO
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| 6 |
Sep 4, 2024
Wednesday
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Lakewood Trail Series
7M, 4M trail run
More Information
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Lakewood, CO
149 miles point to point
Jefferson County, CO
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| 7 |
Sep 4, 2024
Wednesday
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Roost Rebellion Relays
4M relay
More Information
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Denver, CO
144 miles point to point
Denver County, CO
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| 8 |
Sep 6, 2024
Friday
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Flaming Foliage Relay
160M relay
More Information
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start
Idaho Springs, CO
166 miles point to point
finish
Buena Vista, CO
231 miles point to point
Clear Creek County, CO
Chaffee County, CO
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| 9 |
Sep 7, 2024
Saturday
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Black Squirrel Half Marathon
13.1M trail run
More Information
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Bellvue, CO
122 miles point to point
Larimer County, CO
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| 10 |
Sep 7, 2024
Saturday
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Blue Shoe Run for Prostate Cancer
5K run
More Information
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Denver, CO
144 miles point to point
Denver County, CO
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| 11 |
Sep 7, 2024
Saturday
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Cirque Series - Arapahoe Basin
8.8M trail run
More Information
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Keystone, CO
190 miles point to point
Summit County, CO
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| 12 |
Sep 7, 2024
Saturday
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Devil on the Divide
50K, 22K trail run
More Information
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Empire, CO
172 miles point to point
Clear Creek County, CO
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| 13 |
Sep 7, 2024
Saturday
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Doggy Dash 5K
5K run
More Information
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North Platte, NE
117 miles point to point
Lincoln County, NE
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| 14 |
Sep 7, 2024
Saturday
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Nielson Two Mile Challenge
2M trail run
More Information
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Colorado Springs, CO
187 miles point to point
El Paso County, CO
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| 15 |
Sep 7, 2024
Saturday
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RexRun For PAWSitivity 5K Trail Run/Walk
5K trail run | kids run
Virtual Option
More Information
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Aurora, CO
139 miles point to point
Arapahoe County, CO
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| 16 |
Sep 7, 2024
Saturday
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Sloan's Lake Search Party (SLSP)! Marathon Hourly Loop Race
26.2M, 13.1M run
More Information
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Denver, CO
144 miles point to point
Denver County, CO
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| 17 |
Sep 7, 2024
Saturday
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South Boulder Creek parkrun
5K run
More Information
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Boulder, CO
145 miles point to point
Boulder County, CO
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| 18 |
Sep 8, 2024
Sunday
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9/11 Heroes Run - Denver
5K run
More Information
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Denver, CO
144 miles point to point
Denver County, CO
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| 19 |
Sep 8, 2024
Sunday
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Denver Rocks Run 5K/10K
10K, 5K run
More Information
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Denver, CO
144 miles point to point
Denver County, CO
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| 20 |
Sep 8, 2024
Sunday
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Healthy Kids Running Series - Denver
kids run
More Information
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Denver, CO
144 miles point to point
Denver County, CO
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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.