2025 Marathons

Big Sky Marathon 2025

The Big Sky Marathon is on Sunday, July 13, 2025 in Ennis, Montana.

Big Sky Marathon 2025 Details

Location: Ennis, Montana, United States

Date: Sunday, July 13, 2025

Results: 2025

Website: yellowstoneadventureseries.com

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Big Sky Marathon at a Glance

  • Scenic Downhill Course: High-altitude start descending to the valley floor with stunning views of the Madison River valley and mountains.
  • Marathon and Half Marathon Routes: Full marathon begins at Mile 17 of Madison Marathon route; half marathon is a 13.1-mile straight run to Varney Bridge.
  • Essential Logistics: Plan for early arrival and strict start times; various lodging and transportation options available nearby.
  • Community Atmosphere: Enjoy camaraderie among runners and spectators, fostering a supportive race environment.

About the Big Sky Marathon

Set against the breathtaking backdrop of the high mountains in Southwest Montana, the Big Sky Marathon offers a truly one-of-a-kind running experience. Taking place in the quaint town of Ennis, this marathon features a point-to-point course primarily on road and pavement, providing runners with a compelling downhill profile that makes for a fast yet demanding race. As part of the Greater Yellowstone Adventure Series, the marathon invites athletes to indulge in the premier natural beauty of Montana, all while conquering a significant elevation drop from 8531 feet at the start to 5147 feet at the finish over a total descent of 4050 feet. This unique feature allows racers to not only challenge their speed but also to immerse themselves in stunning vistas of the Madison Valley, offering a picturesque running journey unlike any other. Runners participating in the Big Sky Marathon are treated not just to a race, but a full weekend of adventure, simultaneously engaging in camaraderie through the accompanying Madison Marathon held just the day before. Marked by its challenging terrain and rewarding visuals, the Big Sky Marathon remains a top choice for discerning marathoners eager to experience a top-tier race amidst some of the most magnificent natural landscapes the US has to offer.

Weather for the Big Sky Marathon

Expect temperatures between 78-95°F (26-35°C) with high humidity during the Big Sky Marathon in Ennis, Montana, in mid-July. Prepare for warm conditions and be aware of potential rain showers.

Big Sky Marathon Course Details

The Big Sky Marathon offers a stunning and exhilarating point-to-point journey through Montana's breathtaking landscapes. Starting at an impressive 8,600 feet, runners experience a thrilling net descent of 3,651 feet as they make their way to the charming town of Ennis. This course is renowned as the "Second Longest Downhill Road Marathon on Planet Earth," promising a fast-paced adventure. The initial downhill stretch gives way to rolling terrain, with panoramic mountain views enhancing the experience. Runners must tackle the unique challenges of maintaining control on the descent and managing the high-altitude start, making this marathon both demanding and unforgettable.

2025 Big Sky Marathon Training Plans

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Visiting Ennis, Montana

Visiting Ennis, Montana for the Big Sky Marathon offers more than just an athletic challenge; it's an opportunity to immerse yourself in the natural beauty and cultural richness of the region. The town provides a range of accommodations from charming inns to mountain cabins, but be sure to book early during marathon season. With the race starting at a high elevation and ending in Ennis, transportation is usually arranged by organizers, but having a vehicle is ideal for exploring the area further. Expect warm days and cooler mornings in July, so pack layers to stay comfortable.

Beyond the race, Ennis is a gateway to stunning natural attractions. The Madison River, where the marathon concludes, is perfect for fishing or floating, while the nearby Beaverhead-Deerlodge National Forest offers excellent hiking and wildlife viewing. For a touch of leisure, try a round at the Ennis Golf Course or unwind with a book at the Madison Valley Public Library. Dive into local culture with a visit to the true old west saloons, or time your visit for the Madison Valley Arts Festival or the Tap Into Ennis Brew & Spirit Festival for a taste of local arts and flavors.

For those looking to extend their adventure, Ennis is a prime base for exploring Yellowstone National Park, Norris Hot Springs, and historic Virginia City. Outdoor enthusiasts will find plenty to do, from fishing and horseback riding to camping and wildlife spotting. Don't miss the chance to savor local cuisine at spots like the Gravel Bar and Grill or sample spirits at Willies Distillery. Ennis promises a memorable blend of marathon excitement and Montana charm.


Big Sky Marathon FAQs

When is the 2025 Big Sky Marathon?

The 2025 Big Sky Marathon is on Sunday, July 13, 2025.

What is the typical weather like for the Big Sky Marathon?

Expect temperatures between 78-95°F (26-35°C) with high humidity during the Big Sky Marathon in Ennis, Montana, in mid-July. Prepare for warm conditions and be aware of potential rain showers.

What is the Big Sky Marathon website?

The Big Sky Marathon race website is www.yellowstoneadventureseries.com

Where is the Big Sky Marathon?

The Big Sky Marathon takes place in Ennis, Montana.

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