Event Overview

Celebrating its 12th year, the Louisville Trail Half Marathon, 10K, and 5K invites runners back to the beautiful front range for a beloved community event in Louisville, CO. With scenic trails and the iconic Flat Irons as a backdrop, this race takes participants through picturesque paths, offering both a mostly flat course and a challenging hill near the final mile that reveals an unforgettable vista of the front range mountains.

Known for its welcoming atmosphere, the Louisville Trail Race is ideal for runners of all levels, from seasoned competitors to families enjoying a morning on the trails. Post-race festivities add to the fun, making this event a perfect way to experience Louisville’s natural beauty and lively community spirit.

For more information about the race, please visit our Louisville Trail Race Website Information on the website includes: course maps, race day schedule, pacer & crew information, race perks, and more.

Race entries are non-refundable and non-transferable. For other options, please check out our Race Withdrawal Policy.

Course Descriptions

Set against the scenic backdrop of Louisville, CO, the Louisville Trail Race features courses that showcase the natural beauty of Colorado’s front range. With a mix of dirt trails and bike paths, each distance offers its own unique challenge, from the beginner-friendly 5K to the rewarding Half-Marathon. Gentle elevation gains, well-placed climbs, and panoramic vistas make these courses a favorite for runners seeking both approachable and invigorating terrain. Runners of all levels can enjoy the breathtaking landscape and inviting community atmosphere that define this memorable trail race.

Half-Marathon Course

The Half-Marathon course at the Louisville Trail Race offers runners a scenic and approachable 13-mile out-and-back journey, set against the beautiful backdrop of Louisville, CO. Covering 90% dirt trails and 10% bike path, this course has a total elevation gain of 501 feet, reaching a max elevation of 6,412 feet. The route includes two challenging climbs at Miles 5.3 and 11.5, rewarding runners with expansive front range views. With six aid stations along the way, this course combines manageable elevation with plentiful support, making it an ideal option for runners looking to enjoy the trail and push their limits.

10 KM Course

The 10K course at the Louisville Trail Race offers a thrilling 6.2-mile out-and-back adventure, designed entirely on dirt trails. With 285 feet of elevation gain, this route reaches a high point of 6,412 feet and features two steady climbs at Mile 0.8 and Mile 4.7, adding a rewarding challenge to the experience. Three aid stations are positioned along the course to keep runners fueled, providing a scenic and accessible yet invigorating run through Louisville’s vibrant trail landscape.

5 KM Course

The 5K course at the Louisville Trail Race is a welcoming out-and-back route, covering 3.1 miles entirely on dirt trails. With a gentle elevation gain of 193 feet and a high point of 6,369 feet, this course offers a manageable challenge for beginners and seasoned runners alike. Notable climbs at Mile 0.8 and Mile 1.7 add a touch of elevation, while two aid stations ensure support along the way. This 5K is a great way to experience the beauty of Louisville’s trails, combining a shorter distance with stunning views and a friendly atmosphere.

Event Schedule

Bib Pickup

Denver Runners Roost
1685 S. Colorado Blvd
Denver, CO 80222
November 13, 4PM-6PM

Jax Broomfield
5005 W. 120th Ave
Broomfield, CO 80020
November 14, 4PM-7PM

Race Day Schedule

6:30 AM - Race Day Registration and Bib Pickup
7:30 AM - Half-Marathon Start
8:15 AM - 10KM Start
8:30 AM - 5KM Start

Volunteer

We need help to make Louisville Trail Race possible. This is a great way to see your runner on course and help runners get to that finish line! Volunteer perks include Aravaipa race credits and race swag! Sign up to volunteer HERE

Cupless Events

As part of our commitment to minimizing our environmental impact, we’re proud to bring our cupless initiative to the Louisville Trail Race. To help reduce waste on the trails, we’ll provide UltrAspire reusable cups available for purchase at registration and on race day—or feel free to bring your own! Let’s work together to keep our beautiful race environments clean and sustainable for future adventures.

Event's current local time: 12:55 PM MT