It is technically possible for three teams in one conference to have perfect seasons.
The 1972 Miami Dolphins went 14-0 in the regular season. The 2007 New England Patriots went 16-0 in the regular season.
Yes, the Cleveland Cavaliers had the best regular-season record in the NBA for the 2009-2010 season, finishing with 61 wins and 21 losses. This marked the second consecutive year the Cavaliers achieved the best record in the league. Led by LeBron James, they dominated the regular season but were ultimately eliminated in the Eastern Conference playoffs.
The 2008 Boise State football team ended up with a 12-1 record and were WAC champions for the 6th season in 7. They went undefeated in Conference play and the rest of the 'regular season'. Their only loss was to TCU, 17-16, in the Poinsettia Bowl.
As of June 2014 Barry Bonds holds the record for most regular season homeruns. The record is 73 which beat Mark McGwire's record.
The 1972 Miami Dolphins are the only team to go through a season undefeated. Their regular season record was 14-0 and they won their two conference playoff games and the Super Bowl to wind up 17-0.
Chicago bulls
The 1972 Miami Dolphins went 14-0 in the regular season. The 2007 New England Patriots went 16-0 in the regular season.
Their regular season record in 2007 was 10-6
The Ivy League also sends the regular season champion, as the conference has no tournament to end the season.
Yes, the Cleveland Cavaliers had the best regular-season record in the NBA for the 2009-2010 season, finishing with 61 wins and 21 losses. This marked the second consecutive year the Cavaliers achieved the best record in the league. Led by LeBron James, they dominated the regular season but were ultimately eliminated in the Eastern Conference playoffs.
The Cowboys 2007 regular season record was 13-3.
In 2004, the Steelers had a 15-1 regular season record.
The 2008 Boise State football team ended up with a 12-1 record and were WAC champions for the 6th season in 7. They went undefeated in Conference play and the rest of the 'regular season'. Their only loss was to TCU, 17-16, in the Poinsettia Bowl.
Their regular season record for the 2009-2010 football season was 13-3.
The Packers final record for the 2006 regular season was 8-8.
The Redskins regular season record in the 2006 NFL season was 5-11.
The Cowboys record was 10-6 in the 1996 regular season.