the lions in 2008 they went 0-16 the bucs before that went 0-14 in the 60s
The Houston Texans, with a record of 2-14, had the worst season in the 2013 NFL regular season.
The 1956 team had the worst overall record in Yankees history. This was followed by the 1972 team.
colts
2010-11 Celtic
Bruins
Chicago Bears and Pittsburgh Steelers, each at 1-13.
The team with the best regular season record in 2004 was the Pittsburgh Steelers at 15-1.
new Orleans saints or the jacksonville jaguars
I'm not sure but I think once in 2009 the Nationals had a 64-98 record Go Yanks and M's
Pittsburgh
Chicago bulls
Detroit lions