Endure Trail Runs
- Date
- May 15, 2027
- Distance
- 10k · Half Marathon · Marathon & more
From the Organizer
The Human Potential Running Series Presents:
The Endure Trail Runs @ Mueller State Park
The Endure 12-Hour is a one-of-a-kind 12-Hour timed event designed by YOU… and tiny colorful balls. Each runner will pull colored balls from a bucket, which determines the loop they’ll next run. This continues for up to 12 hours; the runner’s result is the miles they ran within the allotted time. You are not required to run for all 12 hours, as your final result is the number of miles you ran within the time you participate!
The 10k, Half Marathon, and Marathon are great ways to enjoy Mueller State Park’s natural beauty in a supportive, “no-pressure” environment. All three distances feature a generous 11-hour cutoff.
All courses feature double-track and single-track trails with ZERO pavement, and an aid station you’ll want to hang around at for hours (we’re that much fun)!
Formerly Known As The Tommyknocker 12-Hour & Mine Shaft Half
Events
Weather
Typical Conditions
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
56°
Typical Low
31°
Based on US Climate Normals data from Divide 4nw, 1 mi from the venue.
Host City
About Divide, CO
Elevation
9,061 ft
Nearest Airport
COS
City of Colorado Springs Municipal Airport · 29 mi
Time Zone
Mountain Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Endure Trail Runs, put it on the calendar, and turn “someday” into a start date.
341
Days to train
- Race
- Endure Trail Runs
- Date
- May 15, 2027
Coming Up
More Running races near Divide, CO
Palmer Lake July 4th Fun Run
19 miles away
Barr Trail Mountain Race
17 miles away
Pat's Pony Express
8 miles away
Farish Mt Bike Race
8 miles away
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
The half marathon is the distance where you find out what you're actually made of. Long enough to demand real preparation. Short enough that it doesn't consume your life to train for it. Most people who run their first half describe it as the race that changed their relationship with what they're capable of. Once you cross this finish line, the bar moves. That's not a warning — that's the point.
Race day energy varies by event size, but the finish line feeling is the same regardless. Big races keep the noise going the whole way. Smaller races give you stretches where it's just you and the miles — and that solitude becomes its own kind of fuel.
The half marathon rewards people who show up for the boring training miles.
How long to train: 10–14 weeks. If you're already running consistently, 10 weeks of structured buildup is enough. If you're building from a casual base, give yourself 14.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is the Endure Trail Runs?
- Endure Trail Runs is a running race held in Divide, Colorado on May 15, 2027. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Endure Trail Runs?
- Saturday, May 15, 2027 in Divide, Colorado at Mueller State Park - Pisgah Point Group Camping Area, Divide, CO. Check the event page for exact start times and wave schedules.
- How do I register for the Endure Trail Runs?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Endure Trail Runs
May 15, 2027