
HRCA Backcountry Wilderness Half Marathon is a trail running and running race on October 31, 2026 in Lone Tree, CO, with an entry fee of $85.
The 18th Annual Backcountry Wilderness Half Marathon returns to Highlands Ranch on the NEW DATE of Saturday, October 31, 2026, at 9:00 a.m. This 13.1-mile race winds through the Douglas County East/West Trail and the scenic Highlands Ranch Backcountry Wilderness Area—offering singletrack, hills, and breathtaking views at every turn.
Cash prizes will be awarded to the top three male, female, and non-binary finishers:
1st – $600 | 2nd – $400 | 3rd – $200
Whether you're chasing a personal best or taking on the trails for the first time, this race delivers a rewarding test of endurance and Colorado beauty.
All participants will receive the following:
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
58°
Typical Low
31°
Chance of Rain
17%
Based on US Climate Normals data from Denver Centennial Ap, 2 mi from the venue.
Population
14,136
as of 2023
City Elevation
5,837 ft
Nearest Airport
DEN
Denver International Airport · 24 mi
Time Zone
Mountain Time
From Endurance Grid
A small town race. Lodging near the start could be limited, so book early.
Every finish line starts with a single decision. Claim your spot at HRCA Backcountry Wilderness Half Marathon, put it on the calendar, and turn “someday” into a start date.
10
Days to train
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This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
Running off-road — dirt, singletrack, and mountain paths — from 5Ks to ultras. The terrain makes for an exciting twist and adventure in your running journey.
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
HRCA Backcountry Wilderness Half Marathon
Oct 31, 2026