This year in the NFL, where even the Wild Card teams sported a .688 winning percentage, the Kansas City Chiefs were left out of the post-season tournament after going 10-6 (.625). Major League Baseball saw the San Diego Padres win their division and earn a 2005 playoff berth with a .506 winning mark, but they were an anomaly. This season all other MLB playoff teams won 90 or more of the 162 games they played. Over the past five years 98% of the baseball teams that have been playoff bound have won 90 (.556) or more games and none have had losing records. The NBA is different.
In the 2003-04 NBA Playoffs four of the eight Eastern Conference teams that had the honor of making the second season earned records of .500 or below. In the Atlantic Division, the 8th seed Boston Celtics, one of the most winning franchises in professional sports history, touted a 36-46 (.439) record as they headed into the playoffs. At 39-43 (.476) the New York Knicks werent much better. In the Central Division, New Orleans and Milwaukee, 5th and 6th seeds respectively, finished at .500.
The next year no sub-500 teams were in the tournament but New Jersey, the 7th seed with a 43-39...