The National Basketball Association (NBA) Finals is the championship series to the NBA and the conclusion of its postseason. All Finals Are played at a best-of-seven format, and therefore are contested between the champions of the Eastern Conference and the Western Conference (formerly Divisions earlier 1970), except in 1950 when the Eastern Division champion faced the winner between the Western and Central Division champions. From 1946 through 1949, once the league was called the Basketball Association of America (BAA), the playoffs were a three-stage tournament where both semifinal winners played each other in the finals.  The winning group of the series receives the Larry O’Brien Championship Trophy.
The present home-and-away format at the NBA Finals is 2–2–1–1–1 (the group with the better regular-season record plays on their home court in Games 1, 2, 5, and 7), that has been utilized in 1947–1948, 1950–1952, 1957–1970, 1972–1974, 1976–1977, 1979–1984, and 2014–gift. It was formerly in two –3–2 format (the team with the better regular season record plays on their home court in Games 1, 2, 6, and 7) through 1949, 1953–1955, and 1985–2013, at a 1–1–1–1–1–1–1 format during 1956 and 1971, and in a 1–2–2–1–1 — 1 format during 1975 and 1978. 
The Eastern Conference/Division directs the Western Conference/Division in string won (39–34). The defunct Central Division, when the then present Eastern Division was updated as a conference in presence throughout the 1949 — 50 NBA season when the NBA was divided into three divisions and separate from the current Central Division created in 1970, won one tournament. The Minneapolis/Los Angeles Lakers and the Boston Celtics alone own nearly half of those titles, having won a joint 33 of 73 championships. The defending champions are the Toronto Raptors, which makes history as the first team from outside of the United States to acquire as of 2019.
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