Big Sky Marathon & Half Marathon

Home » Races » Montana » Ennis » Big Sky Marathon & Half Marathon
Date

Jul 13, 2025

Starting Time

8:30 AM

Course

Trail

Fees

$180+

Location

Ennis

Participants

100-500

Terrain

Downhill

Environment

Mountain Views

Temperature
High: 74°
/ Low: 45°
Overview

The 2024 Madison / Big Sky Double Half Marathon Weekend
Saturday, July 13, 2024 08:30 AM – Sunday, July 14, 2024 07:30 PM MST
Regular signup will begin at 12:00 PM (MST) on March 1. We look forward to welcoming you to Southwest Montana in July.
In the great state of Montana, there is only one place where you can do back to back half marathons (at least within one series).

We are it.

In the great nation of America, we are the only race series that offers a double half marathon consisting of One of The Highest Road Marathons on Planet Earth followed by The Second Longest Downhill Road Marathon on Planet Earth.

We used to be THE HIGHEST road marathon in the world (for sure, we’re still in the Top Five) and we’re pretty sure only a Colorado marathon has us beat in the downhill road category (net drop).

Whatever….. this is one awesome Bucket List double!

The Madison Half Marathon has an average elevation of about 9,000 feet above sea level.

The Big Sky Half Marathon has a net drop of 3,000 feet.

Oh, and we’re right next to Yellowstone National Park. This makes us a superb vacation destination for marathon families. Come check us out this summer. This places doesn’t disappoint.

Course Description

Visit the race website for an up to date course description.

Visit the race website for an up to date course map.

Ready to sign up?

Train with Runna

Use code HALF for 2 weeks FREE

Ready to sign up?

Half marathon news, reviews, and discounts right to your inbox

Half Marathon Guide's 'Perfect For'

Let others know what makes this race so special.