The Cleveland Indians lost 69 games.
The LA Dodgers lost 70 regular season games during the 2013 regular season.
They lost to the Cleveland Browns and the New York Jets in the regular season. In the playoffs, they lost again to the Jets.
Up to date, they have lost 1,181 regular season games.
121 regular season games, seven playoff games.
6 in the regular season
All MLB teams playing in 2012 have lost 100+ games in a season at least once except for the Angels who entered MLB in 1961. Their most losses in a season is 95 in 1968 and 1980. The Dodgers have not lost 100+ games in a season since 1908 when they played in Brooklyn and were known as the Superbas. The Cardinals have not lost 100+ games in a season since 1908. The Yankees have not lost 100+ games in a season since 1912 when they were known as the Highlanders. The Giants have lost 100 games in a season once, that being in 1985.
Through the 2008 season, the Lions have lost 17 consecutive regular season games. They lost the final game of the 2007 season and all 16 games in the 2008 season. The Lions last regular season win came against the Kansas City Chiefs, 25-20, on December 23, 2007.
The dolphins won 394 regular Season Games and 20 Playoff games They lost 291 regular season games and 20 playoff games They are 2-3 in the Superbowl!
The 1999 World Series featured the New York Yankees beating the Atlanta Braves four games to none. The 1999 New York Yankees played 162 games during the regular season, won 98 games, lost 64 games. The 1999 Atlanta Braves played 162 games during the regular season, won 103 games, lost 59 games.