runvibe
ListFind my crew
•95 upcoming races

5K races across
Denver–Boulder.

Every upcoming 5k races in Denver–Boulder — dates, start lines and registration, with the crews to train with listed right beside them.

Browse by distance

All races955K7210K17Half Marathon15Marathon4

Showing 31–60 of 72

October

4 races
DenverRace to Cure Sarcoma Denver5KOther distancesDenverZedikiah Scholarship 5K5KDenverGhosts and Goblins 5K/10K5KOther distancesDenverThe Odyssey Odyssey5KOther distances

November

12 races
DenverFeet for Justice Run5K10KOther distancesFort CollinsGirls on the Run Northern Colorado Fall 5K5KDenverRMRR November 5k/15k5KOther distancesDenverCity Park Classic (5k/10k & 1 Mile Walk of Hope for Pancreatic Cancer Research)5K10KLittletonTurkey Trails- Denver5K10KHalf MarathonOther distancesDenverDenver Veterans Day Run5K10KAuroraSalute to Veterans 5K/10K/Half Marathon - Denver5K10KHalf MarathonDenverGirls on the Run Denver Metro 5K5KDenverPumpkin Pie 5K/10K5K10KBoulderAlpine Bank Boulder Thanksgiving Day 5K5KOther distancesLittletonGobble Wobble Run5KDenverHarvesting Hope 5k5K

December

6 races
LittletonSanta Shuffle 5K5KDenverJingle Bell Run - Colorado5KOther distancesDenverSanta's Dash for Ca$h5KFort CollinsSweaty Sweater 5k5KOther distancesRegistration closedDenverUgly Sweater 5K5KFort CollinsResolution Run - Fort Collins5KRegistration closed

January 2027

2 races
DenverFreakin Freezin 5K - Denver5KDenverTime Travel Half-Marathon/5K/10K - Denver5K10KHalf MarathonOther distances

March 2027

3 races
Fort CollinsSharin' O' The Green 5k5KRegistration closedDenverTime to Paddy 5K/10K & Lucky 13.1 13.1 - Denver5K10KHalf MarathonOther distancesDenverCentral Park 5k5K

April 2027

3 races
DenverDonut Dash5KLittletonPlatte River Half-Marathon, Relay & 5k5KHalf MarathonDenverDoNot Stop Half Marathon/5K/10K - Denver5K10KHalf MarathonOther distances

Race listings sync daily from RunSignup, and are not individually verified the way RunVibe's club listings are.

Train with a crew

A start line is easier with people who run your pace all season. All 33 run clubs in Denver–Boulder →

Build a 5K training plan →