Don Nelson, NBA Coaching Innovator and Five-Time Celtics Champion, Dies at 86/ TezzBuzz/ WASHINGTON/ J. Mansour/ Don Nelson, a five-time NBA champion as a Celtics player and Hall of Fame coach, has died at 86. Nelson won 1,335 games and transformed basketball with fast-paced offenses, small lineups and the point-forward role. His 31-season coaching career included influential tenures with Milwaukee, Dallas and Golden State.
Quick Look
- Don Nelson died Sunday at age 86.
- His family did not disclose a cause of death.
- Nelson won five NBA titles as a Boston Celtics player.
- He recorded 1,335 victories during 31 seasons as a coach.
- Only Gregg Popovich has more NBA coaching wins.
- Nelson was a three-time NBA Coach of the Year.
- His teams reached the playoffs 18 times.
- He helped popularize the point-forward role and up-tempo “Nellie Ball.”
- Nelson coached Milwaukee, Golden State, New York and Dallas.
- He developed Dirk Nowitzki and Steve Nash with the Mavericks.
- His “We Believe” Warriors upset top-seeded Dallas in 2007.
- Nelson coached Stephen Curry during Curry’s rookie season.
- He entered the Basketball Hall of Fame in 2012.
- Nelson received the Chuck Daly Lifetime Achievement Award in 2025.
Deep Look
Don Nelson dies at 86
Don Nelson, the second-winningest head coach in NBA history and a five-time champion as a Boston Celtics player, died Sunday at age 86.
Nelson’s family confirmed his death but did not disclose where he died or provide a cause.
“On Sunday morning our beloved husband, dad, grandfather and great-grandfather Don Nelson peacefully went to be with the Lord, surrounded by his loving family,” the family said. “Throughout his last week, friends and family encircled him with love, sharing the blessing of his friendship and revisiting treasured memories.”
Nelson leaves a legacy as one of basketball’s most influential tactical innovators, a successful executive and a central figure in several important eras of NBA history.
One of the NBA’s winningest coaches
Nelson finished his coaching career with 1,335 regular-season victories, three more than Lenny Wilkens.
He retired as the winningest coach in league history and held the record for nearly 12 years.
Gregg Popovich, Nelson’s close friend and the longtime San Antonio Spurs coach, passed him in March 2022. Nelson remains second on the career list.
He is one of only two coaches in NBA history to win at least 250 games with three different franchises: the Milwaukee Bucks, Dallas Mavericks and Golden State Warriors.
Nelson also served as general manager for all three organizations.
He was named NBA Coach of the Year three times and led his teams to the playoffs in 18 of his 31 seasons.
Nelson reached the conference finals three times with Milwaukee and once with Dallas but never won an NBA championship as a coach.
‘Nellie Ball’ changes how basketball is played
Nelson became known for unconventional lineups, faster offenses and a willingness to challenge established basketball strategy.
He helped introduce what became known as the point forward, placing ball-handling and playmaking responsibilities in the hands of a forward rather than relying exclusively on a traditional point guard.
His offensive philosophy shifted away from the dominant big-man style of the 1970s and emphasized speed, movement and the fast break.
“The league really hadn’t seen an offense like the one we were running, and the results were undeniable,” Nelson wrote in The Players’ Tribune in 2016.
Nelson credited Celtics Hall of Fame coach Red Auerbach for teaching him the principles that became the foundation of his system.
“Without Red Auerbach teaching me the mechanics of running the fast break, none of it would have been possible. He deserves all the credit for Nellie Ball, and for how fast the game of basketball is played today,” Nelson wrote.
Many features of modern NBA offenses — smaller lineups, versatile forwards, increased pace and positional flexibility — can be traced to ideas Nelson promoted decades earlier.
Five championships as a Celtics player
Nelson played 14 NBA seasons, including 11 with the Boston Celtics.
He was a member of five Celtics championship teams while playing under four different head coaches.
His time in Boston exposed him to the franchise’s fast-break principles, winning culture and tactical flexibility.
After retiring as a player, Nelson joined the Milwaukee Bucks as an assistant coach.
He became head coach 18 games into the 1976-77 season after Larry Costello resigned.
Nelson builds a winner in Milwaukee
Nelson coached Milwaukee for 11 seasons beginning in 1976 and guided the Bucks to seven consecutive division championships.
In his second season, the team erased a 29-point fourth-quarter deficit to defeat the Atlanta Hawks 117-115 in regulation.
“I coached the team as though I was still playing for the Celtics, while implementing a few of my own strategies,” Nelson wrote. “I knew I wanted to play unconventional basketball and use speed to my advantage.”
His Bucks teams combined the discipline Nelson learned in Boston with his growing interest in creative offensive schemes.
Although Milwaukee reached the conference finals three times under Nelson, the Bucks did not advance to the NBA Finals.
‘Run TMC’ showcases Nelson’s offense
Nelson’s fast-paced philosophy was displayed most vividly during Golden State’s “Run TMC” era.
The Warriors featured future Hall of Famers Tim Hardaway, Mitch Richmond and Chris Mullin, with Nelson determined to keep all three on the floor together.
The trio became one of the league’s most entertaining and productive offensive combinations.
Nelson spent 11 seasons with Golden State across two coaching tenures.
His first run ended after a conflict with rookie star Chris Webber. The Warriors traded Webber one month into his second season.
Nelson was demoralized by the trade, missed nine games because of illness and resigned under pressure in February 1995.
Brief Knicks tenure leads to Dallas chapter
Nelson coached the New York Knicks during the 1995-96 season but was fired before completing his first year.
He later joined the Dallas Mavericks, where he coached for eight seasons and helped reshape the franchise.
Nelson underwent surgery for prostate cancer in 2000 and missed 21 games beginning that December while recovering.
His son, Donnie Nelson, joined the Mavericks as an assistant coach in 1998. Donnie later became the team’s general manager and remained with Dallas until 2021.
Together, the Nelsons persuaded 20-year-old German star Dirk Nowitzki to leave European basketball and join the Mavericks.
Don Nelson also helped develop Steve Nash into one of the NBA’s best point guards. Nash later joined the Phoenix Suns and won consecutive Most Valuable Player awards in 2005 and 2006.
Steve Kerr praises Nelson’s innovation
Current Golden State coach Steve Kerr described Nelson as a visionary whose influence remains visible across the modern NBA.
“Don Nelson was a true innovator whose influence on the game of basketball is still felt today,” Kerr said. “He consistently challenged conventional thinking, experimented with different lineups and styles of play and saw possibilities in the game that others often did not. So much of what is now commonplace in the modern NBA can be traced back to the way Nellie approached the game.”
Nelson’s willingness to experiment sometimes produced conflict, but it also helped establish concepts that later became standard throughout the league.
‘We Believe’ Warriors make playoff history
One of Nelson’s most memorable achievements came during his second stint with Golden State.
The 2007 “We Believe” Warriors, led by Baron Davis, entered the playoffs as the Western Conference’s eighth seed.
They upset Nowitzki and the top-seeded Mavericks in the opening round, becoming the first No. 8 seed to defeat a No. 1 seed in a seven-game playoff series.
“When I think of Nellie, I’ll always think of the ‘We Believe’ team and our incredible run in 2007,” Davis said. “He understood what made us go and made us believe we could beat anybody, ultimately helping us make history as the first No. 8 seed to defeat a No. 1 seed in a seven-game series. That time in my life and career was truly special, and Nellie was a huge part of making it possible.”
The upset remains one of the greatest postseason surprises in NBA history.
Nelson mentors rookie Stephen Curry
During his final season as a coach in 2009-10, Nelson worked with rookie Stephen Curry.
Curry credited Nelson with helping create the opportunity that brought him to Golden State and with trusting him early in his career.
“One of the big reasons I was drafted by the Warriors was because of Don Nelson. The story is he never liked rookies, but from Day 1 he challenged me and gave me an opportunity to be my best self on the court,” Curry said in a statement released by the Warriors. “He taught me a lot during our one season together and I’ll never forget the night he became the winningest coach in NBA history in Minnesota. We were so happy for him. He had an immeasurable impact on the sport and will go down as one of the greatest minds in the history of the game.”
Curry would become the centerpiece of the Warriors’ championship era and one of the most influential players in NBA history.
Hall of Fame recognition and final public statement
Nelson was inducted into the Naismith Memorial Basketball Hall of Fame in 2012.
In 2025, the National Basketball Coaches Association presented him with the Chuck Daly Lifetime Achievement Award.
At the ceremony, Nelson made clear that he remained engaged with league developments.
Upset by the Mavericks’ blockbuster trade sending Luka Doncic to the Los Angeles Lakers, Nelson wore a pair of Doncic’s signature Jordan Brand sneakers.
He called the deal a “tremendous mistake.”
From Michigan to Maui
Nelson was born in Muskegon, Michigan, and attended high school in Rock Island, Illinois.
He played college basketball at Iowa, where he averaged a double-double.
After retiring from basketball, Nelson lived on the Hawaiian island of Maui and owned several short-term rental properties there.
His career spanned championship Celtics teams, the rise of modern fast-paced basketball and the early development of stars who shaped the league’s future.
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