All-Out Fall Fest

The All-Out Fall Fest is an annual running event held in Westminster, Colorado, featuring Half Marathon, 10K, and 5K races, along with virtual options for each distance. The race courses wind southwest along the scenic Big Dry Creek Trail, offering stunning views of Standley Lake and the Flatirons. This event embraces a fun, nostalgic 70s theme and serves as an official qualifier for the BOLDERBoulder 10K race.

The Fall Fest supports #themarshalleffect, a charity promoting awareness and support for youth at risk of self-harm or suicide. Participants can enjoy a festive atmosphere while running through one of Colorado’s favorite trails and parks. Visit the organization's website for the most recent information.