All-Out Fallfest 1M, 5K, 10K, Half, & Full Marathon...

• All-Out Fallfest 1M Run:- Run 1 Mile
• All-Out Fallfest 5K Run:- Run 3.1 Miles
• All-Out Fallfest 10K Run:- Run 6.2 Miles
• All-Out Fallfest Half Marathon:- Run 13.1 Miles
• All-Out Fallfest Marathon:- Run 26.2 Miles

One of Colorado’s favorite trails meets one of its most glorious parks at our 2nd annual Fallfest 5K, 10K, Half & Full Marathon… now including our ALL NEW 1 Mile! As all distances wind southwest along Big Dry Creek Trail, the remarkable sight of Standley Lake with the Flatirons on the horizon will come into view, then the rustic nature to the northeast will be waiting to greet our marathon athletes. A course that’s not too hilly & not too flat makes this the perfect event for all abilities & preferences, plus… along with its sister event in April (Beat the Heat), All-Out Multicourse is proud to bring you the one and only groomed trail marathon course in the Denver Metro Area!