The jumper struck the back rim, climbed above the basket and dropped through, giving Boston breathing room in Game 7 of the 1969 NBA Finals. Don Nelson, the championship forward who later rebuilt NBA offense around speed, spacing and smaller lineups, died on August 9, 2026, at 86.

The shot was an apt image for a basketball life built on seeing a useful path where others saw risk. Nelson's 15-footer helped the Celtics beat the Los Angeles Lakers 108-106 for one of his five championships as a player. Decades later, his willingness to put forwards on the ball, centers away from the rim and his best five players on the floor regardless of position helped change the geometry of the sport. His family confirmed his death in a statement, the Associated Press reported.

Donald Arvin Nelson was born in Muskegon, Michigan, on May 15, 1940, and later moved to Rock Island, Illinois. At the University of Iowa, he scored 1,522 points from 1959 through 1962, earned All-America honors twice and finished his college career as the Hawkeyes' leading scorer. The Chicago Zephyrs selected him with the first pick of the third round in the 1962 NBA Draft. Stops with that franchise and the Los Angeles Lakers preceded the move that gave his playing career its enduring home.

Nelson signed with Boston in 1965 and entered Red Auerbach's daily education in pace. In a first-person essay for The Players' Tribune, Nelson recalled Auerbach's simple instruction: “We are going to play fast.” The Celtics practiced the rebound, outlet pass and quick finish until speed became habit. Nelson fit the workmanlike ensemble, playing 11 seasons in Boston and contributing to title teams in 1966, 1968, 1969, 1974 and 1976. The franchise retired his No. 19 in 1978.

His most famous basket came with Boston ahead 103-102 and 1:33 remaining in the seventh game of the 1969 Finals. A loose ball reached Nelson near the foul line, and his shot beat the clock before taking its startling high bounce. The NBA recorded how the basket gave the Celtics the margin they needed for a two-point victory. The moment caught both sides of Nelson: the dependable reserve ready for the ball, and the improviser prepared to live with an unusual result.

Retirement as a player in 1976 brought him almost immediately to the Milwaukee Bucks' bench. There, he began converting lessons from Boston into a system of his own. Milwaukee won seven consecutive division titles under Nelson, and he received Coach of the Year awards in 1983 and 1985. When a traditional point guard was not the best way to organize his roster, he ran offense through skilled forwards such as Marques Johnson and Paul Pressey. The point forward became a lasting part of basketball's vocabulary.

Nelson did not treat positions as fixed borders. He wanted ballhandlers who could exploit larger defenders and forwards who could see the entire floor. He wanted the pace to force choices before a defense settled. In his own summary, the philosophy was practical: “You do what you got to do to win. So put your best players out there.” His ideas were less a rejection of basketball tradition than an extension of Auerbach's fast break into new combinations.

Golden State gave those combinations their most vivid stage. Nelson became the Warriors' head coach and vice president in 1988 and put Tim Hardaway, Mitch Richmond and Chris Mullin together in a surging attack known as Run TMC. The ball moved quickly, points accumulated and smaller lineups attacked the matchups created by their own speed. His third Coach of the Year award followed in 1992. In 1994, he also coached the United States to an 8-0 record and a gold medal at the FIBA World Championship in Toronto.

Dallas offered another roster to rethink. Serving as coach and general manager, Nelson helped build around Dirk Nowitzki and Steve Nash. The Mavericks produced four consecutive 50-win seasons, and the tall, perimeter-skilled Nowitzki became a natural fit for a coach who distrusted rigid labels. Nelson's teams did not all look alike. What connected them was his search for the advantage already present in the players he had.

His return to Golden State produced the 2007 We Believe Warriors, an eighth seed that defeated the top-seeded Mavericks in the first round. The upset made them the first No. 8 seed to beat a No. 1 seed in a seven-game series. It also gave a new generation of Bay Area fans a Nelson team driven by freedom, pace and nerve. Baron Davis led a group that played as though the seed beside its name carried no authority over the series.

Nelson's final season joined his career to another chapter of Warriors basketball. He coached Stephen Curry as a rookie in 2009-10, giving the young guard room to grow. “One of the big reasons I was drafted by the Warriors was because of Don Nelson,” Curry said after Nelson's death. That season also brought Nelson the victory that moved him past Lenny Wilkens for the league record. He retired in 2010 with 1,335 wins and held the top place for nearly 12 years.

The Naismith Memorial Basketball Hall of Fame enshrined Nelson as a coach in 2012. By then, his resume connected five Celtics championships, three Coach of the Year awards, 18 playoff appearances as a coach and successful runs with Milwaukee, Golden State and Dallas. In 2025, the National Basketball Coaches Association gave him the Chuck Daly Lifetime Achievement Award. Its announcement described a coach who pushed opponents to answer faster pace, more three-point shooting, inverted offense and disruptive defensive ideas.

Steve Kerr, whose championship Warriors made speed and spacing central to their own era, called Nelson “a true innovator whose influence on the game of basketball is still felt today.” That influence also lived in the trust former players described. Tim Hardaway said Nelson gave him confidence and freedom from the beginning. Curry credited Nelson with both opportunity and challenge during their season together.

Nelson spent his retirement years on Maui, far from the arenas where his restless experiments had become familiar basketball language. His work still ran through the sport: a forward starting the offense, a center stretching away from the basket, five players attacking in space, a coach choosing talent over conventional position labels. The five Celtics rings, 1,335 coaching wins, Iowa records, Hall of Fame plaque and the joyful defiance of the 2007 Warriors fixed the outline of his career. The clearest continuation came each time a team played fast, went small and discovered more room than anyone expected.