The top six-seeded teams received byes into the quarterfinal round.
The higher-seeded teams serve as hosts in the quarterfinal round.
Also beginning with the semifinal round, all games will be played at the Adirondack Bank Center in Utica, New York.
The winners of two the semifinal games will play one another to determine the Atlantic Hockey Tournament Champion and receive the conference's automatic bid to the 2022 NCAA Division I Men's Ice Hockey Tournament.
[1] Teams are reseeded for the semifinals Note: * denotes overtime period(s) [2] * Most Valuable Player(s)