Don Nelson, the coach who spent nearly a decade rebuilding the Dallas Mavericks into a perennial winner and who ranks as the second-winningest coach in both NBA and franchise history, has died at age 86. He passed away in Frisco surrounded by family and longtime NBA friends, just months after relocating from Maui back to Texas.
Nelson served as Mavericks general manager and head coach from 1997 to 2005, a run that reshaped the franchise's fortunes, according to The Dallas Morning News. It was during that tenure, on draft night in June 1998, that Nelson acquired both Dirk Nowitzki and Steve Nash, two players who would go on to become Naismith Basketball Hall of Famers. He later brought his son, Donnie Nelson, on board as a Mavericks assistant coach that same year; Donnie eventually succeeded his father as the team's general manager and would go on to draft Luka Doncic and Jalen Brunson in 2018.
Nowitzki, whose career Nelson is credited with jump-starting, spoke about the coach's impact as recently as June, when Nelson received the James Naismith Family Legacy Award at a Sports Power Brokers event at Gilley's in Dallas. Nowitzki said Nelson gave him a lot of confidence, a sentiment echoed in the tributes that followed Nelson's death. At that same June event, Nelson told the crowd, “I feel great,” adding that he felt like the luckiest guy in the room and that he had felt a lot of love in the room after receiving a standing ovation, per The Dallas Morning News.
A Career That Reshaped How Basketball Is Coached
Nelson's coaching career stretched from 1976 to 2010, spanning 32 seasons and 2,398 games across four franchises — the Milwaukee Bucks, Golden State Warriors, New York Knicks, and Dallas Mavericks. He finished with 1,335 regular-season victories, a mark that stood as the NBA's all-time record until Gregg Popovich passed it in March 2022 en route to what is now 1,390 career wins, according to theScore. Only Popovich and Lenny Wilkens, who coached 2,487 games in his career, surpassed Nelson in games on an NBA bench.
Nelson remains the only head coach in NBA history to record at least 300 regular-season wins with three separate franchises — 540 with Milwaukee, 422 with Golden State, and 339 with Dallas — according to Hoops Rumors. He was voted NBA Coach of the Year three times, in 1982-83 and 1984-85 with Milwaukee and again in 1991-92 with Golden State. In 2021-22, he was named one of the 15 greatest coaches in NBA history, and he was inducted into the Naismith Basketball Hall of Fame in 2012.
The Innovator Behind Point Forwards and Small-Ball
Long before positionless basketball became fashionable, Nelson was experimenting with it. During his time coaching the Bucks in the 1980s, he pioneered the point-forward role by deploying 6-foot-5 small forward Paul Pressey to run the offense, a move detailed by Sports Illustrated that helped Pressey lead Milwaukee in assists for five straight seasons. Later, from 1989 to 1991 with Golden State, Nelson unleashed the high-scoring “Run TMC” trio of Tim Hardaway, Mitch Richmond, and Chris Mullin, whose fast-paced “Nellie Ball” offense led the NBA in team scoring during the 1989-90 season, according to a retrospective published on Medium. All three players eventually reached the Hall of Fame.
Nelson's tactical mind also had a controversial edge. On December 29, 1997, he introduced the off-the-ball intentional foul strategy later dubbed “Hack-a-Shaq,” instructing Dallas Mavericks rookie Bubba Wells to repeatedly foul Chicago Bulls forward Dennis Rodman — a maneuver that saw Wells foul out in just two minutes and 43 seconds, setting an NBA record, per Sports Illustrated's account of the play's origins.
The 2007 Upset That Haunted His Old Team
Perhaps the most famous chapter of Nelson's coaching life came at the expense of the very franchise he had built. In May 2007, he guided the eighth-seeded, “We Believe” Golden State Warriors past the top-seeded, 67-win Dallas Mavericks in a six-game upset, becoming the first coach to lead a No. 8 seed past a No. 1 seed in a best-of-seven series, according to a Wikipedia account of that Warriors season. Nelson's small-ball lineups famously neutralized that year's regular-season MVP, Dirk Nowitzki, in what remains one of the most stunning upsets in NBA playoff history.
A Champion Player Turned International Coach
Before he ever coached a game, Nelson built a championship résumé as a player. He won five NBA titles with the Boston Celtics between 1966 and 1976, spending 11 of his 14 playing seasons there as an effective sixth man, and the franchise retired his No. 19 jersey in 1978. He also hit a famous free-throw-line jumper in Game 7 of the 1969 NBA Finals. Nelson later coached the 1994 U.S. Men's National Team, known as “Dream Team II,” to an undefeated 8-0 record and a gold medal at the FIBA World Championship in Toronto, a squad that featured stars including Shaquille O'Neal, Alonzo Mourning, and Reggie Miller, according to SLAM Magazine.
Nelson's basketball roots traced back to the University of Iowa, where he was a two-time All-American forward from 1959 to 1962. He returned to campus in May 2012, at age 72, to finally receive his undergraduate degree in physical education, completing coursework 50 years after he had left school, according to the University of Iowa. In June 2025, the National Basketball Coaches Association recognized his lifetime of tactical innovation with the Chuck Daly Lifetime Achievement Award, per Iowa Hawkeyes Athletics.
A Final Return to Texas
Nelson moved from Maui back to Frisco early in 2026, telling those gathered at the June award ceremony that it was good to be back in Texas after nearly 50 years spent coaching, playing, and serving as a general manager in the league. His family said he suffered a stroke about three weeks before his death and was placed in hospice care in the time that followed. Rick Carlisle, who won 555 games as Mavericks head coach, holds the franchise's all-time wins record, with Nelson's 339 victories in Dallas ranking second.
Nelson's family confirmed his death in Frisco, describing him as surrounded by loved ones. Dallas Mavericks founded in 1980, the franchise he helped transform from also-ran to perennial contender, now counts him among its most consequential figures — the coach who saw the promise in Nowitzki and Nash before the rest of the league did, and who spent five decades bending the sport toward the fast, flexible style so many teams now play.
