Le Grizz Ultramarathon

Polebridge, United States • 11 Oct 2025

Le Grizz Ultramarathon is a renowned 50-mile race held annually in the autumn near Glacier National Park, Montana. Established in 1982, it is one of the oldest 50-mile footraces in the world. The event features not only the ultramarathon but also a relay option, as well as 10k and 5k races, catering to participants of all skill levels. The race offers a unique experience, including a finishers' picnic with local food and drinks. The course has evolved over the years, with recent changes due to road construction, but it continues to attract runners seeking adventure and community engagement. Visit the organization's website for the most recent information.

Race information

80 km
50 Mile Ultramarathon
10 km
10k
5 km
Relay
Visit the organization's website for the most recent information.
Trail runs nearby