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Sawmill Trail Runs

Sawmill Trail Runs is a running, trail running, and ultra race on December 5, 2026 in Pine, CO, with entry fees from $60 to $120.

Date
December 5, 2026 (135 days to go)
Price
$60–$120
Sports
RunningTrail RunningUltra
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From the Organizer

The Human Potential Running Series Presents:

The Sawmill Trail Runs @ Staunton State Park

The Sawmill Trail Runs; first started as a “Fat Ass” event at White Ranch Open Space in Golden, CO in December 2013. We incorporated it into an official trail race starting in December 2017. In 2021, this event was moved to its new home at Staunton State Park in Pine, CO featuring 50k, 16-Mile, and 8-Mile distance options. 

Staunton State Park is a gem within Colorado’s State Park system. From high grassy meadows at 8,100 feet to soaring granite cliffs over 10,000 feet, Staunton State Park’s varied geology, soils, water features, and climate support rare and unexpected plant communities and a rich diversity of wildlife and provide a myriad of outdoor recreation opportunities. The park is located approximately 40 miles southwest of downtown Denver, north of US Highway 285 and about six miles west of Conifer in Pine, CO.

Special Event Notes: Traction devices such as micro-spikes are welcome should conditions permit. Snowshoes will also be permitted in the event of snow depths exceeding 6″. No other flotation devices will be approved. In the event of deep snow and treacherous conditions on the 50k’s first loop, the loop will be closed and we’ll ask 50k runners to endure the 16-Mile course, twice consecutively. 

Events

50k$120
8-Mile$60
16-Mile$80

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

38°

Typical Low

10°

Chance of Rain

14%

Based on US Climate Normals data from Bailey, 7 mi from the venue.

Sunrise 7:06 AMSunset 4:37 PMDaylight 9h 31m

Host City

About Pine, CO

City Elevation

8,109 ft

Nearest Airport

BJC

Rocky Mountain Metropolitan Airport · 33 mi

Major Hub

DEN

Denver International Airport · 46 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 Sawmill Trail Runs, put it on the calendar, and turn “someday” into a start date.

135

Days to train

Race
Sawmill Trail Runs
Date
December 5, 2026

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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 an 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 makes for an exciting twist and adventure in your running journey.

Ultramarathon

An ultramarathon is anything beyond the standard marathon — 50K, 50-mile, 100K, 100-mile, and timed events. Crossing the line is less about speed and more about not quitting.

Plan your trip

Make it a Racecation

Coming from out of town? There's more to Pine than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.

Plan your trip to Pine
Lodging
Flights
Rental Car
Activities

Frequently Asked Questions (FAQs)

What is the Sawmill Trail Runs?+
Sawmill Trail Runs is a running, trail running, and ultra race held in Pine, Colorado on December 5, 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 Sawmill Trail Runs?+
Saturday, December 5, 2026 in Pine, Colorado at 12102 S Elk Creek Rd. Check the event page for exact start times and wave schedules.
How do I register for the Sawmill Trail Runs?+
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

Sawmill Trail Runs

Dec 5, 2026

Register →