Utah Mammoth right wing JJ Peterka (77) skates with the puck during the second period of an NHL game against the Seattle Kraken at the Delta Center in Salt Lake City on Saturday, Jan. 17, 2026. Rio Giancarlo, Deseret News
Brogan Houston covers the Utah Mammoth for the Deseret News.
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The Utah Mammoth have traded JJ Peterka to the Boston Bruins for multiple first-round picks — No. 23 in Friday’s draft and the Florida Panthers’ first-rounder in 2028.
In the event that Florida’s pick falls inside the top 10, Boston will have the option to send its own 2029 first-round pick to Utah instead.
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Utah Mammoth head coach André Tourigny, right, speaks with Mammoth broadcasters Kim Becker, left, and Nick Olczyk, center, during the Utah Mammoth Draft Show at the Utah Mammoth Ice Center in Sandy on Friday, June 26, 2026. | Rio Giancarlo, Deseret News
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Utah Mammoth head coach André Tourigny, right, speaks with Mammoth broadcasters Kim Becker, left, and Nick Olczyk, center, during the Utah Mammoth Draft Show at the Utah Mammoth Ice Center in Sandy on Friday, June 26, 2026. | Rio Giancarlo, Deseret News
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A Tusky plushy sits on a light during the Utah Mammoth Draft Show at the Utah Mammoth Ice Center in Sandy on Friday, June 26, 2026. | Rio Giancarlo, Deseret News
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Utah Mammoth head coach André Tourigny speaks during the Utah Mammoth Draft Show at the Utah Mammoth Ice Center in Sandy on Friday, June 26, 2026. | Rio Giancarlo, Deseret News
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Utah Mammoth head coach André Tourigny speaks during the Utah Mammoth Draft Show at the Utah Mammoth Ice Center in Sandy on Friday, June 26, 2026. | Rio Giancarlo, Deseret News
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Utah Mammoth first-round draft pick Ethan Belchetz speaks with media via Zoom at the Utah Mammoth Ice Center in Sandy on Friday, June 26, 2026. Belchetz was selected with the 17th pick after the Mammoth traded up from the 19th pick. | Rio Giancarlo, Deseret News
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Utah Mammoth first-round draft pick Ethan Belchetz speaks with media via Zoom at the Utah Mammoth Ice Center in Sandy on Friday, June 26, 2026. Belchetz was selected with the 17th pick after the Mammoth traded up from the 19th pick. | Rio Giancarlo, Deseret News
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Bill Armstrong, general manager of the Utah Mammoth, speaks with media after the first round of the 2026 NHL Draft at the Utah Mammoth Ice Center in Sandy on Friday, June 26, 2026. | Rio Giancarlo, Deseret News
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Bill Armstrong, general manager of the Utah Mammoth, speaks with media after the first round of the 2026 NHL Draft at the Utah Mammoth Ice Center in Sandy on Friday, June 26, 2026. | Rio Giancarlo, Deseret News
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Bill Armstrong, general manager of the Utah Mammoth, speaks with media after the first round of the 2026 NHL Draft at the Utah Mammoth Ice Center in Sandy on Friday, June 26, 2026. | Rio Giancarlo, Deseret News
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Bill Armstrong, general manager of the Utah Mammoth, speaks with media after the first round of the 2026 NHL Draft at the Utah Mammoth Ice Center in Sandy on Friday, June 26, 2026. | Rio Giancarlo, Deseret News
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Bill Armstrong, general manager of the Utah Mammoth, speaks with media after the first round of the 2026 NHL Draft at the Utah Mammoth Ice Center in Sandy on Friday, June 26, 2026. | Rio Giancarlo, Deseret News
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Bill Armstrong, general manager of the Utah Mammoth, speaks with media after the first round of the 2026 NHL Draft at the Utah Mammoth Ice Center in Sandy on Friday, June 26, 2026. | Rio Giancarlo, Deseret News
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Bill Armstrong, general manager of the Utah Mammoth, speaks with media after the first round of the 2026 NHL Draft at the Utah Mammoth Ice Center in Sandy on Friday, June 26, 2026. | Rio Giancarlo, Deseret News
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Bill Armstrong, general manager of the Utah Mammoth, speaks with media after the first round of the 2026 NHL Draft at the Utah Mammoth Ice Center in Sandy on Friday, June 26, 2026. | Rio Giancarlo, Deseret News
Peterka, a speedy 24-year-old winger, was traded to Utah last summer after spending five seasons in the Buffalo Sabres organization, but after a 68-point season in 2023-24, he managed just 47 points in his lone year with the Mammoth.
Offensive numbers aside, Peterka’s defensive growth this season was astronomical. His even-strength on-ice goals against decreased from 77 to 48, with just five more games played.
The Mammoth now have two picks in Friday’s first round of the draft, No. 19 and No. 23.
“I would like to thank JJ for his commitment to our organization,” said Mammoth GM Bill Armstrong. “JJ is a great person and will be a dynamic player for Boston.”
Utah Mammoth right wing JJ Peterka (77) ends up on the ice between the skates of Boston Bruins defenseman Nikita Zadorov (91) as the Mammoth and Bruins play at the Delta Center in Salt Lake City on Sunday, Oct. 19, 2025. | Scott G Winterton, Deseret News
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