Upcoming races in and near Northglenn, Colorado. Use filters to quickly find races by distance, month or race type.
More races: USA running calendar
Date Race Distance Location hf:tax:distancecategory hf:tax:monthandyear hf:tax:typerace 01/19/2025 Arctic Prairie Dog Half Marathon 10K, 13.1M, 5K Westminster CO 10k 5k half 01-january roadrace 12/07/2024 All-Out Fa La La Half Marathon 10K, 13.1M, 5K Westminster CO 10k 5k half 12-december roadrace 07/12/2025 All-Out Dog Days Half Marathon 10K, 13.1M, 5K Westminster CO 10k 5k half 07-july roadrace 04/13/2025 The Spring Fling Prairie Dog Half 10K, 13.1M, 5K Arvada CO 10k 5k half 04-april roadrace 01/11/2025 All-Out Polar Prowl Half Marathon 10K, 13.1M, 5K Arvada CO 10k 5k half 01-january roadrace 02/22/2025 All-Out Mardi Crawl 5K, 10K and Half Marathon 10K, 13.1M, 5K Arvada CO 10k 5k half 02-february trail 02/16/2025 Ralston Creek Half Marathon 13.1M, 5K Arvada CO 5k half 02-february roadrace 06/01/2025 Colorado 13er 10K, 13.1M, 5K Louisville CO 10k 5k half 06-june roadrace 04/26/2025 Runs with Scissors Races 13.1M, 26.2M, 50K Brighton CO half marathon ultra 04-april trail 05/17/2025 Denver Colfax Marathon 10M, 13.1M, 26.2M Denver CO 10k-to-half-marathon half marathon 05-may roadrace 12/08/2024 Jingle Bell Run โ Colorado 1M, 5K Denver CO 5k 12-december roadrace 12/21/2024 Santa’s Dash for Cash 1M, 5K Denver CO 5k 12-december roadrace 12/14/2024 WinterFest 5K 5K Denver CO 5k 12-december roadrace 03/02/2025 That Dam Run 10K, 13.1M, 5K Denver CO 10k 5k half 03-march roadrace 04/13/2025 Three Creeks Half Marathon 13.1M Denver CO half 04-april roadrace 05/04/2025 Longmont Half Marathon 13.1M, 5K Longmont CO 5k half 05-may roadrace 04/13/2025 Platte River Half Marathon 13.1M Littleton CO half 04-april roadrace 02/23/2025 Highlands Ranch 5K Highlands Ranch CO 5k 02-february roadrace 12/07/2024 Toy Drop 10K, 15K, 5K Loveland CO 10k 10k-to-half-marathon 5k 12-december roadrace 07/04/2025 July 4th ROCK-IT Run 13.1M, 1K, 5K Castle Rock CO 5k half 07-july roadrace 07/04/2025 ROCK-IT Run Half Marathon 13.1M, 5K Castle Rock CO 5k half 07-july roadrace 07/19/2025 Summer Splash Prairie Dog Half Marathon 10K, 13.1M, 5K Castle Rock CO 10k 5k half 07-july roadrace 12/07/2024 Sawmill Trail Runs 16M, 50K, 8M Pine CO 10k-to-half-marathon half-marathon-to-full-marathon ultra 12-december trail 12/14/2024 Santa Catch 5K & 10K 10K, 5K Windsor CO 10k 5k 12-december roadrace 11/09/2024 BINGO! Trail Runs 10M, 20M, 42M, 54M Byers CO 10k-to-half-marathon half-marathon-to-full-marathon ultra 11-november trail 04/13/2025 Horsetooth Half Marathon 13.1M Fort Collins CO half 04-april roadrace 03/23/2025 Spring Equinox Half Marathon 13.1M, 4M Fort Collins CO half 03-march trail 05/04/2025 Colorado Marathon 10K, 13.1M, 26.2M, 5K Fort Collins CO 10k 5k half marathon 05-may roadrace 06/07/2025 The Great Divide Ultra 100K, 100M, 25K, 50K Divide CO half-marathon-to-full-marathon ultra 06-june trail 05/10/2025 Valkyrie Trail Race 13.1M, 26.2M, 30K, 4M, 50K, 8M Colorado Springs CO 10k-to-half-marathon half half-marathon-to-full-marathon marathon ultra 05-may trail 05/17/2025 Ram Party 15K, 24K, 50K, 55M, 60K Colorado Springs CO 10k-to-half-marathon half marathon ultra 05-may trail 11/30/2024 Colorado Cold Rush Ultra 10K, 13.1M, 50K Colorado Springs CO 10k half ultra 11-november trail 02/09/2025 Super Half Marathon and Game Day 5K 13.1M, 5K Colorado Springs CO 5k half 02-february roadrace 02/15/2025 Stories Ultra 10K, 13.1M, 15H, 30H, 6H Colorado Springs CO 10k half ultra 02-february trail 05/25/2025 Spirit Trail Race 13.1M, 26.2M, 9K Buena Vista CO half marathon 05-may trail 04/26/2025 Royal Gorge Groove Trail Runs 12K, 20K, 30K, 50K, 5K Caรฑon City CO 10k-to-half-marathon 5k half half-marathon-to-full-marathon ultra 04-april trail 06/01/2025 Steamboat Marathon 10K, 13.1M, 26.2M Steamboat Springs CO 10k half marathon 06-june roadrace 03/08/2025 Run Through Time Trail Marathon 13.1M, 26.2M, 2M Salida CO half marathon 03-march trail 12/08/2024 Rock Canyon Half Marathon 13.1M, 5K Pueblo CO 5k half 12-december roadrace
