Joe Mazzulla

Early Life and Playing Career

Joe Mazzulla was born on June 30, 1988, in Johnston, Rhode Island. He played college basketball at West Virginia University from 2006 to 2011 and had a brief professional playing stint overseas before moving into coaching Source 1.

Rise Through the Coaching Ranks

Mazzulla began his coaching career as a video coordinator and assistant coach at several college programs. In 2019, he joined the Boston Celtics as an assistant coach under Brad Stevens and was promoted to interim head coach in February 2022 after Ime Udoka’s suspension.

Head Coach of the Boston Celtics

He was named permanent head coach in April 2022. In his first full season, Mazzulla led the Celtics to the 2022 NBA Finals. He is known for an analytical, player-empowerment coaching style that emphasizes adaptability and accountability.

2025–26 NBA Coach of the Year

Mazzulla guided the Celtics to a 56-win season and the No. 2 seed in the Eastern Conference during 2025–26. He overcame significant roster challenges, including injuries to Jayson Tatum and Kristaps Porziņģis plus a major trade. His focus on player development earned him the NBA Coach of the Year award—the first for a Celtics coach since 1980 Source 2, Source 3, Source 7.

Coaching Philosophy and Legacy

Mazzulla continues to build on the franchise’s championship culture through long-term growth and accountability.

FAQ

What college did Joe Mazzulla attend?
West Virginia University.

When was Joe Mazzulla named NBA Coach of the Year?
For the 2025–26 season.

How many wins did the Celtics record under Mazzulla in 2025–26?
56 wins.

What major obstacles did Mazzulla overcome during the award-winning season?
Injuries to Jayson Tatum and Kristaps Porziņģis, plus a significant trade.

Is Mazzulla the first Celtics coach to win Coach of the Year?
No—he is the first since 1980.

What aspect of Mazzulla’s work was highlighted beyond the win total?
His player-development impact.