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Le Grizz Ultramarathon & Relay

calendar_today 10 Oct, 2026

directions_run Running

language Official Website

sell $35.00 – $80.00

Le Grizz Ultramarathon & Relay

About the Event

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 exact 2025 course is TBD, as construction on the North Fork Road over the past couple of years has caused course re-routes. Please check back in often, as will will update racers on the 2025 race course as soon as we are able!

Runners can generally expect approximately 2,300 feet of elevation gain across 50 miles – metrics that are true to the traditional elevation profile of Le Grizz from the legacy Spotted Bear course – on undulating gravel roads with occasional gentle inclines – excellent for folks seeking their first ultramarathon finish.

Races Offered

50 Mile Ultramarathon

Oct 10, 2026

straighten

Distance — 50 Miles

terrain

Type — Running

timer

07:00

sell

$80.00

50 Mile Relay

Oct 10, 2026

straighten

Distance — 50 Miles

terrain

Type — Running

timer

07:30

sell

$80.00

15K Run

Oct 10, 2026

straighten

Distance — 9.3 Miles

terrain

Type — Running

timer

11:00

sell

$50.00

5K Run

Oct 10, 2026

straighten

Distance — 3.1 Miles

terrain

Type — Running

timer

11:00

sell

$35.00

Weather History

These values represent the 3-year monthly averages for October in Polebridge.

thermostat Temperature
0.8° / 12.5°
wb_sunny Feels like
-2.2° / 9.2°
light_mode Avg sunshine hours
8h 12m
water_drop Avg rainfall
1.2 mm
ac_unit Avg snowfall
0.3 cm
air Avg wind speed
5.8 km/h (Light breeze)
opacity Sweat loss rate
Low
terrain Course conditions
Firm and slightly soft
sunny Max UV Index
Low (2.8)
humidity_mid Humidity
72.2%
wb_twilight Sunrise
07:59
nightlight Sunset
18:45

About Polebridge

Learn more about the host city, Polebridge.

Scenic view of

Polebridge is an unincorporated community in Flathead County, Montana, United States, 35 miles (56 km) northwest of Columbia Falls in the northwestern part of the state. This community was named in 1920 for the log bridge that formerly connected the "inner" North Fork Road in Glacier National Park to the "outer" North Fork Road which leads to Montana Secondary Highway 486, over the North Fork Flathead River. Polebridge is approximately 22 miles south of the Canada–United States border.

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Hotels & Places to Stay

Race Results

Official finishing times from previous editions of Le Grizz Ultramarathon & Relay.

Place Name Time
🥇 Meghan Hanson 10:40:14.95
🥈 Adriana Mckenzie 11:09:36.81
🥉 Matthew Glew 11:57:09.25
4 Rich DeSimone 12:20:52.07
5 Charles N. Steele 12:20:56.68

Runner Reviews

Read what other athletes have to say about their experience at the Le Grizz Ultramarathon & Relay.

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