The 2009–10 NBA season was the 64th season of the National Basketball Association (NBA). The 1,230-game regular season (82 games for each of the 30 teams) began on Tuesday, October 27, 2009, and ended on Wednesday, April 14, 2010. The 2010 NBA Playoffs started on Saturday, April 17, 2010 and ran until Sunday, June 10 when the Boston Celtics sweeped the Los Angeles Lakers 97-89 to win the 2010 NBA Finals, four games to zero. Cleveland's league-leading 61 wins was the lowest win total to lead the league since the Indiana Pacers won 61 games in 2003–04.