The Boston Celtics weren’t supposed to be here. Entering the 2025-26 NBA campaign, the reigning powerhouse looked entirely vulnerable. Franchise cornerstone Jayson Tatum was sidelined for months recovering from a torn Achilles tendon. Key veteran pieces were gone, and outside observers quietly wrote off the year as a developmental bridge season.
Head coach Joe Mazzulla didn’t care about the narrative. Behind his hyper-disciplined, relentless system, the Celtics shocked the league by finishing 56-26 and locking down the No. 2 seed in the Eastern Conference.
On Tuesday, the NBA officially rewarded that tactical masterclass by naming Mazzulla the 2025-26 NBA Coach of the Year. At just 37 years old, he achieves a historic double-milestone:
- He is the youngest coach to win the award since Phil Johnson did so with the Kansas City-Omaha Kings in 1975.
- He is the first Boston Celtics head coach to earn the honor since legendary tactician Bill Fitch in 1980.
Voting Breakdown and Statistical Dominance
Mazzulla secured the Red Auerbach Trophy convincingly, capturing 62 out of 100 first-place votes from a global panel of sportswriters and broadcasters. He comfortably outpaced J.B. Bickerstaff and Mitch Johnson in the final ballot tracking.
| Coach | Team | Voting Placement |
| Joe Mazzulla | Boston Celtics | Winner (62 First-Place Votes) |
| J.B. Bickerstaff | Detroit Pistons | Finalist / Runner-Up |
| Mitch Johnson | San Antonio Spurs | Finalist / Third Place |
What made Mazzulla’s campaign so undeniable was how Boston won. The roster was stripped of experienced depth like Kristaps Porziņģis, Jrue Holiday, and Al Horford. Yet, under his watch, the Celtics remained a beautifully oiled machine on both ends of the hardwood, ranking near the absolute top of the NBA in both offensive and defensive efficiency ratings.
Following this regular season, Mazzulla’s career head-coaching winning percentage climbs to a blistering .726 through four seasons at the helm.
“Nobody Cares” — Deflecting Individual Glory
True to his characteristically intense, stoic media personality, Mazzulla immediately brushed off personal accolades during his press availability, choosing to shine the spotlight entirely on his support system.
“There’s so much that goes into winning one game,” Mazzulla stated. “It starts with the players, but it goes to our staff. I feel bad that they’re not here, but I am forever indebted to the guys that we have that give up their time with their families to give us a chance to win every day… I truly want to thank my staff. I love those guys.”
This team-first approach is exactly why Brad Stevens and the Celtics front office moved swiftly to lock down their coach long-term. In August 2025, Stevens confirmed that Boston had signed Mazzulla to a lucrative, multiyear contract extension. While the exact financial figures remain tightly guarded, the franchise’s belief in his bizarre but brilliant leadership style is absolute.
Joe Mazzulla's Boston Ascent:
• 2019: Joins the franchise as an assistant coach.
• 2022: Unexpectedly named interim head coach following Ime Udoka's suspension.
• 2024: Guides the Celtics to their historic 18th NBA Championship banner.
• 2026: Wins NBA Coach of the Year at age 37.
The Foundation: Faith, Family, and Marriage
Behind the intense baseline stares and viral press conference quotes is a steady family foundation. Mazzulla has been happily married to his wife, Camai Mazzulla, since 2014. The duo initially crossed paths while they were both coaching college athletics at Glenville State College.
While Camai eventually stepped away from her own clipboard to support Joe’s rapid NBA ascent, she carved out her own highly successful path within the criminal justice field. Together, they live in the Boston area raising their two young sons, Michael and Emmanuel.
Mazzulla routinely credits the sudden, high-pressure environment of the Boston job for actually drawing his inner circle closer together. “Under the circumstances, a lot of families could break apart and go the other way,” Joe reflected. “I felt like the biggest gift was our marriage got stronger and our family got closer because we were navigating something completely new together where nobody else could truly understand what we were learning.”
With a Coach of the Year trophy now added to his resume, Mazzulla’s focus pivots right back to the postseason, where his short-handed, gritty Celtics aim to defy the odds once again in the Eastern Conference playoffs.