Welcome to the Bear 100 Endurance Run

Welcome to the Bear 100 Mile Endurance Run

A Cool, Autumn Loop Through the Pines, Golden Aspen and Red Maples
100 Miles • 22, 518′ of climb • Max Elevation 9043′ • Min Elevation 4860’• Avg Elevation 7350′

Race Director

The race director for the BEAR 100 is Leland Barker
Phone (435) 563-3647
Email  bear100man@hotmail.com

*Capped at 350 Starters

Sept. 24-25, 2021

Friday/Saturday Race


2022 Qualifying Run

Paul Butkovich

Paul Butkovich was a great friend to ultrarunning in Utah and California, and to the Bear 100. Both he and his little Jack Russell terrier, his constant companion, Altheia will be sorely missed.

Paul Anthony Butkovich Obituary: View Paul Butkovich’s Obituary by The Park Record

Race Registration is online only. Race is capped at 350 starters.

The race begins at the mouth of Logan Dry Canyon, right near Logan, Utah. There are dozens of hotels within five minutes of the start. Logan is a medium-sized university city with all the amenities you need, including an outdoor/running shop. It is a two hour drive from the the Salt Lake City International Airport.

2021 Race Date/Time: September 24-25, 2021 06:00 Start Time
Entrant cap stays at ~350 runners then a wait list will be started.
We no longer offer rollovers for drops but will still offer a partial refund until 9/10/2021 at 12am

Registration starts on October 1, 2020

Race fees  $240 through 5-31-21
$260 06-1-21 through 8-31-21
$280 09-1-21 through 9-21-21

Shuttle service from finish to start is $20 per runner

Drop bag size limitation

(all aid stations expect finish line): 15 and 20 inches in length, 5 to 10 inches in width and 8 to 10 inches deep Finish line drop bag size limitation:20 inches long, 10 inches wide and 10 to 12 inches deep.

Dog limitations

Under NO Circumstances are dogs allowed at the finish area. Runners and crews ignoring this rule are subject to disqualification. Please don’t jeopardize the race using this facility and leave the dogs at home.

Why a Friday Race?

Many runners ask why the Bear 100 begins on a Friday. There are several reasons. First, many participants and volunteers (radio operators, scout troops at the aid stations) are members of the Church of Jesus Christ of Latter-day Saints (“Mormons”) and find it difficult to participate on a Sunday. Second, Saturday recreationists and ranchers have less of an impact when the field is spread out on Saturday morning. Finally, for those traveling from long distance, taking Thursday and Friday off is easier than taking off Friday and Monday.


All entrants will receive a beautiful t-shirt with a distinctive design. Finishers receive an engraved plaque indicating the date of the event and their finish time and place. They also receive a belt buckle reflective of their time: a Black Bear buckle for times between 30-36 hours, a Grizzly Bear buckle for times between 24-30 hours, and a Wolverine buckle for times under 24 hours. Winners, in addition to the items above, will receive large custom-engraved pine plaques documenting their accomplishment.