2027 Grand Teton & Yellowstone Half Marathon & 5K

About the Event

Experience the majestic beauty of America's national parks by running through two iconic landscapes: Grand Teton and Yellowstone. This unique race weekend offers runners the opportunity to take on either a 5K or half marathon distance, or for those seeking an extra challenge, both distances in each park over consecutive days.
The first day begins with the awe-inspiring backdrop of Grand Teton National Park, where you'll traverse rugged terrain and enjoy panoramic mountain views. The following morning, runners will make their way to Yellowstone National Park, home to geothermal wonders like Old Faithful and a diverse range of wildlife habitats. Each park offers its own distinct course that showcases natural beauty while providing an exhilarating challenge for all levels.
For those up for the ultimate test, the Grand Quad Challenge invites you to run both distances in each park over two weekends. This ambitious feat not only tests your endurance but also rewards your efforts with eight medals and exclusive swag items commemorating this extraordinary journey through some of America's most breathtaking wilderness areas.
Whether you're a seasoned runner or new to long-distance events, these races provide an unforgettable adventure that combines physical achievement with the serene beauty of nature. Join us for what promises to be one of the highlights of your running year.

Races Offered

Grand Quad (Grand Teton & Yellowstone)

Jun 05, 2027

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Distance — 21.1K

terrain

Type — Running

timer

00:00

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These values represent the 3-year monthly averages for June in Wyoming.

thermostat Temperature

11.2° / 24.8°

wb_sunny Feels like

8.0° / 20.7°

light_mode Avg sunshine hours

12h 53m

water_drop Avg rainfall

1.5 mm

ac_unit Avg snowfall

—

air Avg wind speed

13.8 km/h (Gentle breeze)

opacity Sweat loss rate

Moderate

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Very High (8.0)

humidity_mid Humidity

50.4%

wb_twilight Sunrise

05:30

nightlight Sunset

20:50

About Wyoming

Learn more about the host city, Wyoming.

Wyoming is a state in the Rocky Mountain region of the United States. Known as the "Equality State" or the "Cowboy State", it is the country's least populous state, with the second-lowest population density after Alaska.