<P> The following is a listing of all 30 current Major League Baseball (MLB) teams ranked by win--loss record percentage, accurate as of the end of the 2016 Major League Baseball season . The records do not count wins and losses recorded by a team's playing time in the National Association of Professional Base Ball Players (NAPBP). Counting MLB statistics, the New York Yankees have the highest win--loss record percentage, with . 569 . The Tampa Bay Rays have the lowest win--loss record percentage, with . 462 . The San Francisco Giants and Tampa Bay Rays have recorded the most and least overall wins, with 10,951 and 1,420, respectively . The Chicago Cubs lead the association with the most played games, with 21,060 . Conversely, the Rays have played the least overall games, with 3,076 . </P> <Table> <Tr> <Td> Best win--loss record in division </Td> </Tr> </Table>

What mlb team has lost the most games