13
Giants
It was Arsenal who went one season without a loss.
The Miami Dolphins
Calgary flames
The Yankees won 114 regular season games in 1998.
Dallas. Through the 2016 season, the Cowboys have 493 regular-season wins and 34 playoff wins for a total of 527. The Raiders have 456 regular-season wins and 25 playoff wins for a total of 481.
49ers
The Pittsburgh Steelers had the most regular season wins with 15. Including playoff wins, the New England Patriots had the most with 17.
Washington Nationals during the regular season.
Internazionale is the team in Serie A that has the most number of wins in a season.
Through the 2010 season, that is 101 regular season wins by the 1976 and 1977 teams.