Denvers Largest Halloween run...now in its' 6th year.... the ALIENS RETURN for 2024 to Sloan Lake after 2023...no landing because of snow.... ((all 2023 runners get comp'd... so we will have our largest field ever!!) 65% wear costumes...so come dressed up and be ready to save the planet. Runners receive:  Choice of Beanie or Run […]

This Halloween, join us for a spooky 5k or 1 mile loop through the Pioneer Cemetery in Idaho Springs!!  Try for a PR or take a leisurely stroll as you trick or treat with the ghouls in the graveyard. DON'T FORGET TO DRESS UP! Our Halloween costume contest gives you even more reason to rock […]

Join us for The Boos & Brews Halloween 5k @ Number Thirty Eight on October 26, 2024, for a 5k-ish, fun run event that starts and ends at this awesome taproom in Denver. Run, walk, jog - whatever goes! Complete the course and celebrate with us and a FREE, local craft brew at the finish […]

5K: Join us for a Halloween-themed 5K!  Yes, that means we want you to run in your best costume!  Runners will start at South Main in Buena Vista.  You should be on the lookout for some spooky scenes along the river.  This run is stroller friendly!  After enjoying a little jaunt around the town trails, […]

Runners of all ages and abilities, families, and dogs are all welcome to join us for this Halloween celebration!  Dress in your Halloween best for a chance to win prizes at the pre-race the costume contest before the race at 5 pm.