No. 1 – 1957-69 Boston Celtics
The greatest dynasty in the history of the NBA, Boston’s rise to dominance behind greats like Bill Russell, Bob Cousy and Tommy Heinsohn in the 1960s may never be paralleled again.
While the winning percentage may be the worst of the top five at .687 with 656 wins and 299 losses, it spanned 13 years and produced twelve Finals appearances and 11 banners in the process.
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