All-Out Fall Fest
Updated
Saturday, September 18, 2027, first start 8:00 AM, in Westminster (10200 West 100th Avenue). Distances: 5K, 10K, Half marathon. Entry from $35 to $65; the Half marathon goes from $65 to $70 after March 19.
- Date
- Saturday, September 18, 2027
- Start time
- 8:00 AM (earliest wave)
- Location
- 10200 West 100th Avenue, Westminster, CO 80021
- Area
- Denver Suburbs, Denver & Boulder
- Distances
- 5K10KHalf marathon
- Course
- Trail (dirt or single-track on at least part of the course)
- Price
- $35 to $65 plus the platform's processing fee
- Next price increase
- Friday, March 19, 2027: Half marathon $65 → $70
- Registration
- Open. Opened September 18, online signup closes Saturday, September 18, 2027
How to register
Registration is on RunSignup. Pick your distance, add any extras, and you'll get a confirmation email with your bib details. Sign up by March 19 to pay $65 instead of $70.
Course and race notes
Get ready to totally rock the new courses coming to Fall Fest 2027! It's like trail running that's absolutely rad-with all the support, reliability, and killer experience you've come to expect from All-Out. These new courses are going to be awesome!
From the race's own listing. Check the race website for the course map and parking.
Source: RunSignup public race API, refreshed 2026-10-17. Details can change; the registration page is the final word.