(Reuters) - Some interesting facts about the National Basketball Association's postseason:
* The Boston Celtics (40-42) and Brooklyn Nets (38-44) both qualified for the playoffs in the Eastern Conference despite posting losing records during the 2014-15 NBA regular season.
* The Oklahoma City Thunder (45-37) missed out on the final Western Conference playoff berth due to a tiebreaker, making them the only team with a winning record not in the postseason.
* Four playoff coaches are in their first year with current team: Lionel Hollins (Brooklyn), David Blatt (Cleveland), Steve Kerr (Golden State) and Jason Kidd (Milwaukee)
* The 16-team tournament will feature four teams that failed to qualify for the postseason last year: Boston, Cleveland, Milwaukee, New Orleans.