Katmai National Park and Preserve released the official bracket for Fat Bear Week 2026 on September 18, 2026, across its digital platforms. The annual tournament showcases brown bears gorging on sockeye salmon along the Brooks River in Alaska to accumulate essential body fat before winter hibernation. A total of 16 competitors will face off in public head-to-head voting rounds throughout the event.
This roster reflects an increase from past tournaments, which historically featured only 12 bracket positions for competing animals. Katmai park superintendent Mark Sturm stated that the region witnessed a notable influx of young brown bears along riverbanks, signifying an ecological transition among local bear groups.
The single-elimination tournament begins official matchups on September 22, 2026, operating entirely through online ballots without charging fees to voters. The public decides every pairing as supporters evaluate physical transformation and weight gain over the summer months. Voting paused over the weekend gives staff time to compile results before the next round opens. Park officials will officially crown the tournament champion on September 29, 2026.
Live cameras stream the action. Dedicated webcams positioned along the river give viewers worldwide real-time access to watch the animals catch salmon and interact along the waterfalls.
Former champions and fresh contenders join the 2026 bracket
The updated roster highlights new contenders such as bear 89, an adult male known among park rangers by the nickname Backpack. Officials explained that this designation originated from an injury sustained during his first year, which forced him to travel by clinging to his mother’s back. Veteran competitor 151 Walker also enters the male field as one of the most dominant brown bears established along the Brooks River corridor.
Defending champion bear 32, widely recognized as Chunk, returns to the tournament after registering an estimated weight above 540 kilograms in the previous season. Chunk overcame a fractured jaw during that stretch while gathering necessary calorie reserves to endure the freezing Alaska winter. His history at the park includes notable riverbank clashes, such as an encounter that killed a cub belonging to female bear Grazer, the tournament champion in 2024.
Park ranger Sarah Bruce noted that individual bears establish distinct survival tactics to ingest critical nutrients before entering their dens. Adult females face the difficult task of sustaining their own caloric needs while securing fish and safety for dependent offspring.
Salmon runs and record cub numbers alter park dynamics
Naturalist Mike Fitz documented 37 cubs near the Brooks River during the current observation season, marking a historic high for the area. Several mothers compete with offspring in tow, including bear 806, who presently manages two cubs after adopting a yearling into her family. In contrast, bear 909 enters the tournament alone after losing both of her cubs earlier in the season.
The massive weight gain stems from hyperphagia, a biological state driving bears to eat salmon almost continuously without feeling full. During spring emergence, brown bears leave their dens weighing roughly 270 kilograms with lean frames and protruding bones, but intensive feeding on migrating salmon along river rapids allows mature males to surpass 450 kilograms before the cold season arrives. This dramatic physiological change protects animals during months without food or water.
The previous edition collected 1.7 million votes submitted by nature enthusiasts from over 100 countries worldwide. Established in 2014, the annual event functions as an educational initiative highlighting wildlife preservation across Katmai’s 4.2 million acres, home to an estimated 2,200 resident brown bears.