Joe Mazzulla of the Boston Celtics has been named NBA Coach of the Year, according to the NBA. The announcement was made on May 27, 2026, following a successful season in which the Celtics secured the No. 2 seed in the Eastern Conference.
What happened
Joe Mazzulla, the head coach of the Boston Celtics, won the NBA Coach of the Year award for the 2025-26 season. Despite facing numerous challenges, including the absence of star player Jayson Tatum during much of the year, Mazzulla led the Celtics to a strong playoff position. “I don’t need it,” Mazzulla had said in March, referring to such awards as “stupid.” Yet, he acknowledged the importance of teamwork during his acceptance speech, thanking his coaching staff and players.[1]
This accolade marks Mazzulla as the youngest recipient since Phil Johnson in 1975. The Celtics coach expressed his appreciation for his team, stating, “The long nights…the assistants who are putting in the game plan,” highlighting the collaborative effort that contributed to the team’s success.
Why it matters
Mazzulla’s recognition underscores the importance of adaptive coaching and leadership within a competitive sports environment. His ability to navigate a difficult season demonstrates not only his skill but also the effectiveness of his coaching staff. Celtics President Brad Stevens noted, “Joe did a fantastic job building and growing a team,” emphasizing the stakes involved in maintaining team cohesion amidst uncertainty.
Background
On March 15, 2026, Mazzulla publicly dismissed the significance of individual coaching awards, indicating a preference for team recognition. The Celtics faced tremendous pressure entering the season due to key player departures and injuries, making their No. 2 seed finish even more remarkable. Previous Boston coaches to win the award include Red Auerbach in 1965 and Bill Fitch in 1980.[2]
What’s next
Mazzulla will receive the Red Auerbach Trophy in an official ceremony, with no specific date announced yet for this event. The NBA’s announcement of major award winners highlights the conclusion of the 2025-26 season, with several awards already presented earlier this spring.[3]

