
Le Grizz Ultramarathon & Relay is a running and ultra race on October 10, 2026 in Polebridge, MT, with entry fees from $35 to $150.
From the Organizer
Le Grizz is a 50-mile Ultramarathon run just to the west of Montana's Glacier National Park on a gravel road that parallels the North Fork of the Flathead River. Runners will find themselves gaining views of the magnificent Crown of the Continent, made up of Northern Rockies of Southern British Columbia and Glacier Park, and surrounded by the changing colors of the aspen and larch.
The 2026 course is an out-and-back route which will begin and end at the Glacier Institute's Big Creek Outdoor Education Center, following the North Fork Road just beyond Red Meadow Creek, with a brief detour into our Polebridge Mercantile aid station.
The course contains approximately 2,300 feet of elevation gain across the 50 miles – metrics that are true to the traditional elevation profile of Le Grizz from the legacy Spotted Bear course. The road is undulating gravel with occasional gentle inclines – excellent for folks seeking their first ultramarathon finish.
Events
Weather
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
58°
Typical Low
27°
Based on US Climate Normals data from Polebridge, 6 mi from the venue.
Host City
City Elevation
4,014 ft
Nearest Airport
FCA
Glacier Park International Airport · 36 mi
Time Zone
Mountain Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
Your Next Start Line
Every finish line starts with a single decision. Claim your spot at Le Grizz Ultramarathon & Relay, put it on the calendar, and turn “someday” into a start date.
79
Days to train
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From Endurance Grid
This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
An ultramarathon is anything beyond the standard marathon — 50K, 50-mile, 100K, 100-mile, and timed events. Crossing the line is less about speed and more about not quitting.
Coming Up
The Big Mountain Run - Danny On Hill Climb
29 miles away
Boogie To The Bank
32 miles away
Last Herron Standing- Backyard Ultra
43 miles away
Cedar Flats Trail Trot
34 miles away
Plan your trip
Coming from out of town? There's more to Polebridge than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.
Plan your trip to PolebridgeFrequently Asked Questions (FAQs)
Le Grizz Ultramarathon & Relay
Oct 10, 2026