Dallas Cowboys holds the record with a winning season every year from 1966 to 1985. It is also the record for most consecutive winning seasons of any professional sports team.
After the 2008 season, they have 33 consecutive winning seasons.
Gilles Gilbert holds the regular season NHL record for the longest winning streak with 17 wins in 1975-76.
The Cowboys had a winning regular season record for 20 seasons between 1966-1985.
The NBA record for consecutive losses in a season is 23 held by the 1996 Vancouver Grizzlies.
Joe DiMaggio hit in 56 consecutive games during the 1941 season.
In MLB, it is the 1982 Atlanta Braves and 1987 Milwaukee Brewers with 13 consecutive wins to start the season.
The MLB consecutive games with a base hit record is held by Joe DiMaggio of the New York Yankees who got a hit in 56 consecutive games in the 1941 season.
The Pittsburgh Penguins won 17 consecutive games in 1993
the same team with 26 worls series titles . YAnkees! Yankees! Yankees! The Yankees just guaranteed (with their most recent win), a winning season for 2010. This ties the record for 2nd most consecutive winning seasons. The most consecutive winning seasons in MLB history: 1st - The New York Yankees: 1926 to 1964 (39 consecutive winning seasons) 2nd (tie) - Baltimore Orioles from 1968 to 1985 (18 consecutive winning seasons) - New York Yankees from 1993 to 2010 (18 consecutive winning seasons - streak still intact)
a winning season is when a team has more wins than losses. For example a team with a 9-7 (or better) record has had a winning season.
The longest winning streak to open a season would be Howard College in 2009. The team won 57 consecutive games before losing in the playoffs. The team ended up winning the 2009 JUCO World Series with a record of 63-1. This is of course a JUCO team and this is beats any other record held by any other division (NCAA D1, D2, D3, NAIA)