Joe Mazzulla is the first Celtics head coach to win the NBA Coach of the Year Award since Bill Fitch in 1979-80 and the fourth in franchise history, a group that also includes Red Auerbach (1964-65) and Tom Heinsohn (1972-73).
At 37, Mazzulla is the youngest NBA Coach of the Year since Phil Johnson in 1974-75.
Boston Celtics head coach Joe Mazzulla has been named the 2025-26 NBA Coach of the Year, earning the Red Auerbach Trophy.