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Fat Bear Week Bracket Revealed as Defending Champion Chunk Returns

Public voting opens Tuesday, Sept. 22, to pick which Katmai brown bear has built the fattest reserves for winter hibernation.

Overview

  • Organizers published the 16-bear single-elimination bracket ahead of the vote, which runs from Sept. 22 through Sept. 29 and will crown the 2026 champion on Sept. 29.
  • The field includes four categories—bear families, subadults, single adult females and adult males—so mothers with cubs and younger bears can compete alongside large males.
  • Defending champion Bear 32, known as Chunk, returned to Brooks River this year after sustaining a broken jaw in June 2025 and will face several notable challengers including Bear 164 (Bucky) and Bear 151 (Walker).
  • Fat Bear Week spotlights hyperphagia, the late-summer feeding period when bears rely on Katmai’s abundant wild sockeye salmon to build fat needed for months-long hibernation.
  • The contest is a public outreach event that has grown into a global phenomenon, drawing millions of votes in past years and driving livestream viewership and ecotourism to Katmai while educating people about bear behavior.