5K
5K Races in Colorado
138 upcoming 5k races in Colorado
Family Fun Run 1 Mile5K/10K/13.1 Eco-Registration (No Shirt)Virtual Run Registration (5K/10K/13.1)5K Registration10K Registration13.1 Half-Marathon Registration
Family Fun Run 1 MileVirtual Run Registration (5K/10K/13.1)5K/10K/13.1 Eco-Registration (No Shirt)5K Registration10K Registration13.1 Half-Marathon Registration
5k Run/Walk
Lucky Brew 5KLucky Brew 15KLucky Brew 10KHalf MarathonKids Fun Run
FREE 1k Kid's Dash5KRRCA State Championship 10K
Lucky Leprechaun 5K
5KVIRTUAL 5KVIRTUAL 10K10KHalf MarathonVIRTUAL Half Marathon
Virtual 5k5kHalf MarathonVirtual Half Marathon
Family 1 Mile Fun RunVirtual Run Registration5K Registration5K/10K/13.1 Eco-Registration (No Shirt)10K Registration13.1 Half-Marathon Registration
Family 1 Mile Fun Run5K/10K/13.1 Eco-Registration (No Shirt)5K RegistrationVirtual Run Registration10K Registration13.1 Half-Marathon Registration
5k10kHalf Marathon
Virtual 5K5K
5kHalf Marathon RelayHalf Marathon
Virtual 5K5K5K-No Shirt
Earth Day 5K
Woody's Tortoise and Hare 5K
5KVIRTUAL 5KVIRTUAL 10K10KHalf MarathonVIRTUAL Half Marathon
Virtual 5k Run/WalkFairmount 5K RunFairmount 5k WalkAll Access Pass (includes 5k Run or Walk, Ninja course & Fun Run)Fairmount Flash (Fun Run)Fairmount Flash (Fun Run) & Ninja Course (ages 5+)Ninja Course (ages 5+)
Family 1 Mile Fun Run5K/10K/13.1 Eco-Registration (No Shirt)Virtual Run Registration5K Registration10K Registration13.1 Half-Marathon Registration
Family Fun Run 1 Mile5K Registration5K/10K/13.1 Eco-Registration (No Shirt)Virtual Run Registration (5K/10K/13.1)10K Registration13.1 Half-Marathon Registration
5kHalf-Marathon
5K Run10M Run10K Run
#3 May 12#2 May 5#4 May 19#1 April 284-Pack Series Bundle
Family 1 Mile Fun Run5K/10K/13.1 Eco-Registration (No Shirt)Virtual Run Registration5K Registration10K Registration13.1 Half-Marathon Registration
5K Walk/RunKids 15 and under 5k Walk/Run15 Mile Bike RideKids 15 and under 15 mile Bike Ride
Family 1 Mile Fun Run5K/10K/13.1 Eco-Registration (No Shirt)Virtual Run Registration5K Registration10K Registration13.1 Half-Marathon Registration
1 Mile Fun Run5K Students/Youth 18 & UnderAdult 5K5K Family Registration (up to 5 family members at same address)5K Foster Family Registration (up to 5 family members at same address)
5K10KHalf MarathonMarathon
Rise Against Suicide - Emerge 5K
5mi5k
5kHalf Marathon
1 Mile5kVirtual Run10kHalf MarathonKid's DashVolunteer Then Run
5K Run
Mile of SmilesFive Star 5K Run/Walk/Roll
5k
5K
5K5K-No ShirtVirtual 5KVirtual 10K10K10K-No ShirtHalf Marathon-No ShirtVirtual Half MarathonHalf Marathon
5k10 Miler10k
Miles for Smiles 5KMiles for Smiles 5K - Virtual RaceJordyn's Adaptive Dash - open to children who have received adaptive equipment from Two Angels Foundation
Healing Warriors Program 2026 Annual 5K Fun Run
Family Fun Run 1 MileVirtual Run Registration (5K/10K/13.1)5K/10K/13.1 Eco-Registration (No Shirt)5K Registration10K Registration13.1 Half-Marathon Registration
Family 1 Mile Fun Run5K RegistrationVirtual Run Registration5K/10K/13.1 Eco-Registration (No Shirt)10K Registration13.1 Half-Marathon Registration
Kids Run5K10K1/2 Marathon
The Narrow Gauge 5KThe Narrow Gauge 10 Mile
5k Angel Run at Red Leg Brewing, Not Timed5k Angel Run at Red Leg Brewing, Timed10k Angel Run at Red Leg Brewing, Timed10k Angel Run at Red Leg Brewing, Not Timed
Running for Rescues! 1 Mile - Onsite - Girls on the Run or School Run ClubsRunning for Rescues! 1 Mile Fun Run - OnsiteRunning for Rescues! 1 Mile Fun Run - VirtualRunning for Rescues! 5K - Onsite - Girls on the Run or School Run ClubsRunning for Rescues! 5K - Onsite - Bring your "howdy partners" - group (discounted pricing for participants)Running for Rescues! 5K - VirtualRunning for Rescues! 5K - Onsite
Family Fun Run 1 Mile5K/10K/13.1 Eco-Registration (No Shirt)Virtual Run Registration (5K/10K/13.1)5K Registration10K Registration13.1 Half-Marathon Registration
Family 1 Mile Fun Run5K RegistrationVirtual Run Registration5K/10K/13.1 Eco-Registration (No Shirt)10K Registration13.1 Half-Marathon Registration
Aiden's Adventure 5k Kids 1-Mile DashAiden's Adventure 5k Kids 1-Mile Dash - NO SHIRT/MEDALAiden's Adventure 5k Virtual EventAiden's Adventure 5k - NO SHIRT/MEDALAiden's Adventure 5k