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)
23 by Florida State
The University of Alabama has a 24 game regular season winning streak. Florida has a twenty game regular season winning streak and overall a twenty two game winning streak with one regular season game left.
Against what team do the green bay Packers have the longest regular-season home winning streak?
AC Roma is the team in Serie A that has had the longest winning streak of 10 games in the 2013 2014 season.
2009-10 season was 11. This season was 5.
Currently, the Milwaukee Bucks hold the third longest winning streak at 20 games, which they set in the 1970-1971 season.
18 - 85 Bears