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Mammoth Stun Avalanche in Overtime Thriller
22 Oct
Summary
- Mammoth defeat Avalanche 4-3 in overtime
- Guenther scores game-winning goal 33 seconds into OT
- Sergachev records a goal and an assist for Mammoth

On October 22nd, 2025, the Utah Mammoth pulled off a dramatic 4-3 overtime victory against the Colorado Avalanche at the Delta Center. The Avalanche had taken an early 1-0 lead in the first period, but the Mammoth fought back to tie the game at 1-1 in the second period. The teams traded goals in the third period, with the Mammoth taking a 3-2 lead before the Avalanche equalized late to send the game to overtime.
Just 33 seconds into the extra period, Dylan Guenther scored the game-winning goal for the Mammoth, handing the Avalanche their first loss of the season. Mikhail Sergachev had a strong game for the Mammoth, recording a goal and an assist. The win keeps the Mammoth undefeated at home this season, while the Avalanche see their three-game win streak snapped.