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Best single season improvement, NBA team

Best single season improvement, NBA team
Who
Boston Celtics
Where
United States
When
2008

The NBA record for biggest single-season turnaround is 42 wins by the Boston Celtics (USA) during the 2007-08 season. The Celtics won 24 games in 2006-07 but improved to 66 wins in 2007-08. The previous best single-season turnaround was the 36-win improvement by the San Antonio Spurs in 1996-97.