NBA comprises of two conferences: Eastern Conference and Western Conference. Each conference consist of 3 divisions with five teams per division. Thus in total 30 teams play against each other during the course of a regular season. The matchups of every single team over the season can be broken as:A team faces oponents in its own division 4 times a season (16 games)It faces 6 of the teams from other two divisions in its own conference 4 times a season (24 games)The remaining four teams in the conference are faced 3 times in a season (12 games)The 15 teams of the other conference are faced twice in a seasion (15 games)Therefore in a regular season, each team plays 82 games. Out of these 82 games, 41 are played on their respective home courts while the other 41 games are played away from home.At the end of the regular season, the top 8 teams from each conference, in terms of winning percentage all through the season, proceeds to the playoffs or the postseason.Let us get little deeper and look at the top ten teams with the best winning record in a single season (in the modern era of NBA).
#10 Milwaukee Bucks (1970-1971)
With a season best winning record of 66 game wins and 16 losses, the Milwaukee Bucks proceeded into the Eastern Conference Playoffs and ultimately win the NBA Finals.
The team lost five of its final six games of the season though.
The team was led by all-time great Kareem Abdul Jabbar.