Backpack wins Fat Bear Week 2026 after defeating Bear 910 in online vote

A close finish in the bracket finals

Brown bear 89, widely known as Backpack, won the 2026 Fat Bear Week tournament after securing 103,344 votes in the final poll. He defeated Bear 910, an adult female who received 98,253 votes, finishing with a narrow margin of 5,091 votes. The single-elimination competition ran from 22 September to 29 September 2026 on fatbearweek.org, featuring a field of 16 bears from Katmai National Park and Preserve. Online viewers observed the bears via explore.org livestream cameras along the Brooks River before casting their ballots. High voter turnout during the opening rounds overloaded the server infrastructure, prompting organizers to extend the first round of voting. Total participation across the entire tournament exceeded the 2025 total of 1.7 million votes.

Lineage and temperament of the finalists

Backpack first arrived at the Brooks River in 2006 as a cub with his mother, Bear 435 Holly, who won the Fat Bear Week title in 2019. He earned his nickname from his habit of riding on Holly's back while swimming across the river as a young cub. In 2007, Backpack recovered from a severe leg injury. Park staff noted that his coat shifts from light brown in early summer to gray-brown in late summer, and he carries fewer battle scars than typical adult males because he relies on quiet strength rather than brawling for fishing spots. Naomi Boak, a former Katmai Conservancy communication specialist who produced the event after watching Backpack on livestreams from New York City in 2019, described him as a gentleman bear.

Runner-up Bear 910 also carries championship lineage as the daughter of two-time victor 409 Beadnose. The eight-year-old female earned the nickname Dancing Queen from viewers due to the distinctive head toss she performs when snatching salmon from the rapids. Both finalists reached the championship stage after advancing through three prior elimination rounds in the 16-bear bracket.

Ecological role of autumn hyperphagia

The annual contest tracks the feeding preparations of the roughly 2,200 brown bears living across the Katmai reserve on the Alaska Peninsula. Starting in late June, sockeye salmon migrate up the Brooks River, prompting bears to enter hyperphagia, an intensive feeding state where they gorge to accumulate fat reserves. Adult male brown bears in Katmai typically weigh around 400 kilograms by mid-summer, and top competitors gain substantial additional mass before retreating to winter dens. Bears remain in their dens for months without eating or drinking, losing up to one-third of their body mass during winter hibernation. Park ranger Sarah Bruce noted the biological significance of the weight gains.

They're all winners. They're all set up to survive winter hibernation.

Past champions and tournament milestones

Fat Bear Week began in 2014 as a public education collaboration between explore.org, the National Park Service, and the Katmai Conservancy. The 2025 champion Chunk, registered as Bear 32, entered that tournament at an estimated 545 kilograms but exited in the first round of the 2026 bracket against Bucky. Park rangers noted that Chunk spent less time near the Brooks River during the 2026 season. Bucky advanced before losing to Backpack in the semifinal round, clearing the way for Backpack's final match against Bear 910.