Mile of SmilesFive Star 5K Run/Walk/Roll
Running Races in Colorado
340 upcoming races
Browse by City
Denver 43 Centennial 37 Colorado Springs 36 Fort Collins 24 Littleton 15 Arvada 12 Steamboat Springs 12 Westminster 10 Loveland 10 Durango 9 Buena Vista 8 Aurora 8 Aspen 8 Boulder 7 Golden 7 Thornton 7 Parker 6 Bellvue 6 Pueblo 5 Longmont 5 Windsor 5 Highlands Ranch 5 Louisville 5 Manitou Springs 4 Grand Junction 4 Brighton 4 Salida 4 Castle Rock 4 Estes Park 3 Frederick 3
Upcoming Races in Colorado
5K Run
Cerox Iron IndividualCerox Iron Teams of 2Cerox Iron X IndividualCerox Iron X Teams of 2
Run For The Trees Fun RunVirtual Run for the Trees Fun Run
1 Mile5kVirtual Run10kHalf MarathonKid's DashVolunteer Then Run
5k Walk and Fun Run
Family Fun Trek5K
5k
1 Mile5k10kHalf MarathonKid's DashVirtual RunVolunteer then Run
5k10k10 Miler
5K
Virtual 5K5K5K-No ShirtVirtual 10K10K-No Shirt10KVirtual Half MarathonHalf MarathonHalf Marathon-No Shirt
Walk, Run, or Hike Against Trauma
10kHalf MarathonMarathon12-Hour (Tiny Balls)12-Hour (Endure- LMS)
5k10k
Vallecito Lake Heavy Half Marathon
Healing Warriors Program 2026 Annual 5K Fun Run
Colfax 1/2 MarathonColfax MarathonColfax Relay Team
Miles for Smiles 5KMiles for Smiles 5K - Virtual RaceJordyn's Adaptive Dash - open to children who have received adaptive equipment from Two Angels Foundation
Family Fun Run 1 Mile5K RegistrationVirtual Run Registration (5K/10K/13.1)5K/10K/13.1 Eco-Registration (No Shirt)10K Registration13.1 Half-Marathon Registration