OUTLAST DENVER logo
Running

OUTLAST DENVER

Date
October 3, 2026
Distance
Other
Price
$100
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From the Organizer

What Is OUTLAST?

OUTLAST is a 6-hour trail endurance challenge where runners complete a 5K every hour, on the hour. Each lap must be finished within the hour to stay in the event. If you finish early, you rest until the next round. Miss a lap, and you’re out.

Complete all six rounds, and you OUTLAST.

This isn't just about speed — it's about pacing, discipline, and mental grit. Whether you're trying to survive all six or win your division, the challenge is the same: show up each hour, push your limits, and stay in it.

Each course is trail-based, with natural terrain, elevation, and unpredictable conditions. You’ll have time between rounds to recover, refuel, and refocus — but not much.

 

What You Earn:

​4 laps = “Grit Earned” patch
5 laps = “Survivor” patch
6 laps = Premium “OUTLAST” medal

​​All participants receive a premium OUTLAST Tee.

Top male and female with the fastest combined 5K times at each event win the 1st Place OUTLAST award. 

Finishers are ranked on the national leaderboard—and the fastest runner across all OUTLAST 6-hour events will be crowned National Champion and take home $1,000.

The 1st Place Male and Female 6-hour champions from each city will earn a spot in the Outlast Championship, where they’ll compete against the best of the best at the end of the Tour, and the 1st place male and female winners take home $1000 each. (This is separate from the national leaderboard prize money.)

By the end of the tour, the top 100 best times nationally will be invited to also compete in the Outlast Championship.

 

Frequently Asked Questions:

Do I have to run all 6 laps?
Nope. Run as many as you can. If you complete 4 or 5, you'll still earn a patch. Only those who finish all 6 get the OUTLAST medal and leaderboard ranking.

What happens if I don’t finish a lap in time?
You're out. The next lap starts at the top of the next hour, and only those who completed the last lap on time can continue.

How is the race timed?
Each 5K is timed individually. If you complete all 6, your combined time counts toward the local win and national leaderboard.

Are these trail races or road?
Every OUTLAST race is on trail terrain — dirt, rocks, roots, and elevation. Sometimes some pavement and gravel.

Can I walk?
Yes, as long as you finish the 5K within the hour. But some courses are rugged, and time can sneak up on you.

Are there aid stations?
Yes. There will be water, basic hydration, and snacks at the basecamp/loop start. This is a cupless event — bring your own bottle or hydration system.

What should I bring?
Trail shoes, hydration system, layers (weather dependent), fuel between laps, and grit.

Can I setup a tent?
Absolutely, bring your own aid station/tent setup.

Is OUTLAST for beginners?
Yes — if you're mentally tough. You don’t need to be fast, just consistent and ready to suffer a little.

How do I win?
If you finish all 6 laps and have the fastest combined time, you win your division (male/female). Winners are also added to the national leaderboard for a shot at the $1,000 national prize & title.

Events

6 Hour Challenge$100

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

71°

Typical Low

41°

Chance of Rain

20%

Based on US Climate Normals data from Kassler, 3 mi from the venue.

Sunrise 6:59 AMSunset 6:41 PMDaylight 11h 42m

Host City

About Littleton, CO

Population

45,092

as of 2023

City Elevation

5,445 ft

Nearest Airport

BJC

Rocky Mountain Metropolitan Airport · 24 mi

Major Hub

DEN

Denver International Airport · 28 mi

Time Zone

Mountain Time

From Endurance Grid

A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.

Race Location

Your Next Start Line

What Are You
Waiting For?

Every finish line starts with a single decision. Claim your spot at OUTLAST DENVER, put it on the calendar, and turn “someday” into a start date.

108

Days to train

Race
OUTLAST DENVER
Date
October 3, 2026

From Endurance Grid

About These Sports

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

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.

Trail Running

Running off-road — dirt, singletrack, and mountain paths — from 5Ks to ultras. The terrain, not the pace, is the whole point.

Frequently Asked Questions (FAQs)

What is the OUTLAST DENVER?
OUTLAST DENVER is a running race held in Littleton, Colorado on October 3, 2026. 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 OUTLAST DENVER?
Saturday, October 3, 2026 in Littleton, Colorado at 11500 N. Roxborough Park Rd. Check the event page for exact start times and wave schedules.
How do I register for the OUTLAST DENVER?
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

OUTLAST DENVER

Oct 3, 2026

Register →