The 49ers have the highest winning percent because they are undefeated in superbowls. P.S. They are 5-0 in superbowls winning against the Bengals,Dolphins,Broncos,Bengals again, and finally the Chargers.
The New England Patriots have the best win percent since 2011, with a 3 season average winning percentage of .771.
Pittsburgh Steelers
Ben Roethlisberger (Pittsburgh Steelers) has the best winning percentage by far.
New York Yankees.
Boise State has the best with a record of 112-17 for an .868 winning percentage. After that is Texas (110-19) and Oklahoma (110-24).
In addition to the most wins, 560, Oklahoma also has the best winning percentage, at .74835.
Highest Winning Percentage, Regular Season Miami Dolphins .580 Highest Winning Percentage, Overall Dallas Cowboys .577
Tom Brady and Ben Roethlisberger are the two quarterbacks that have the best winning percentage in their first 4 years in the NFL. Ben Roethlisberger has the fourth highest career winning percentage as a quarterback.
The Ravens
No, Ohio State's winning percentage is 71.6%. It is the fifth highest of All-time. The University of Michigan holds the highest winning percentage of 74%
As of the 2013 season, the college football team that has the best winning percentage in Division 1 is Old Dominion with a winning percentage of .767. Old Dominion has only played 60 games in Division 1 though. Notre Dame is 2nd with a percentage of .733 Michigan is 3rd with a percentage of .732
Through the 2010 season, it's the Chicago Bears. They have a record of 704-512-42 for a winning percentage of .579.
49ers