All-Out Fall Fest

SEP
18
2027
All-Out Fall Fest on September 18, 2027 at Standley Lake in Westminster CO offers in-person and virtual Half Marathon, 10K, and 5K and benefits BookGive.
Sat 18 Sep 2027
Half Marathon 10 kilometers 5 kilometers

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All-Out Fall Fest

All-Out Fall Fest is scheduled for Saturday, September 18, 2027, at Standley Lake in Westminster, Colorado. The event is organized by All-Out Multicourse Productions and is based near 10200 West 100th Avenue, Westminster, CO 80021, United States.

The event offers multiple in-person and virtual distances:

  • Half Marathon (in-person)
  • 10K (in-person)
  • 5K (in-person)
  • Half Marathon (virtual)
  • 10K (virtual)
  • 5K (virtual)

Organizers plan new courses that run through Standley Lake Open Space and note views of the Flatirons over Standley Lake; course and venue details were scheduled to be shared by mid-January 2027. This edition is the 13th annual Fall Fest. The event is designated as an official BOLDERBoulder qualifier, and finishing times from any distance may be used to qualify for 2028 BOLDERBoulder waves.

The event benefits BookGive. Information provided states that BookGive donates books to partner organizations and has donated more than 500,000 books since 2019, supporting literacy programs and distribution to schools, senior centers, clinics, and other community sites. Visit the organization's website for the most recent information.

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