MonsterDASH
October 25 @ 9:30 AM
$35.00Colorado’s Favorite Halloween Runs….Each year the Theme Changes!! 2025 brings…SCARY CLOWNS / Circus Theme! Our best theme yet.
Saturday Race is in Denver at 9:30am… then Sunday is in Louisville at 3:00pm on trails.
This festival on Sloan’s Lake, brings scary music, tons of Blow Ups, Carnival Games and Scary Clowns. The 5k and 10k run loops around beautiful Sloan’s Lake and finishes in the CIRCUS Expo….with Games, Hot Dogs, Pop Corn and Balloons. The Race starts at 9:30am for the 5k and 10k…then the Kids Race will be at 11:00am.
Runners receive: Runners Hat, Finisher Medallion, Hot Dog, Pop Corn and drinks….
Contests: Costume Contests, Pie eating Contest and great unique awards. This Race Caps out at 550 Runners.
Please click here to submit your event for FREE to our online calendar.
We do not allow events without physical locations (IE – virtual runs, runs with locations TBD, etc…).
Please allow 48 hours after submission for an event to appear on the calendar. If you have already listed your event and would like us to update it, please contact us.