60%
Through the 2010 season, it's the Chicago Bears. They have a record of 704-512-42 for a winning percentage of .579.
50%
Including the playoffs, he is 53-57 as of today.
The percentage of winning against someone in a competition depends on various factors such as skill level, preparation, experience, and luck. There is no set percentage for winning as it can vary each time depending on the circumstances.
The Cleveland Brown's all time historical winning percentage was .535 which has topped the franchise's winning record and is high against other NFL teams.
He played professional basketball with the Chicago Bulls,winning 6 championships in a decade
500
Indiana (.657)
Babe Ruth!
According to the Pro Football Hall of Fame, as of the start of the 2007 season the team with the best all time regular season winning percentage was the Miami Dolphins whose all time regular season record was 368-252-4 for a winning percentage of .593. Second was the Chicago Bears with an all time regular season record of 670-482-42 for a winning percentage of .579.
currently 1. thunder 80.6 winning percentage 2.bulle 78.9 winning percentage 3. heat 77.8 winning percentage 4.spurs 69.4 winning percentage 5. pacers 64.7 winning percentage