Just 10 teams in history have won 30 or more games over a two-year period (including playoffs) and three of them are your resident AFC powerhouses: the 2003-04 Patriots, 2004-05 Steelers and 2005-06 Colts.
 
Pretty amazing.
 
We stacked up all these 30-win two-year teams below and ranked them by winning percentage. All but the 1972-73 Dolphins played in the era of the 16-game schedule (since 1978). We also added in one non-30 win team, the 1982-83 Redskins. The Redskins went 28-4 and in all likelihood would have won 30 or more games if not for the 1982 players strike. The Redskins played just nine regular-season games that year, plus four playoff games in the 16-team postseason tournament the NFL employed in 1982. Their .875 win percentage over two seasons certainly indicates that they belong on this list.
  • The 2003-04 Patriots won more games over two years (34) than any team in history.
  • The 1972-73 Dolphins are the only team to win more than 90 percent of their games over a two-year period.
  • The most dominant 30-win team was the 1985-86 Bears, who won by an average of 13.6 PPG.
  • The least dominant teams were the recent Patriots (+8.9), Colts (+8.0) and Steelers (+7.5).
Pittsburgh is the only franchise with two entries on the list.
 
NFL's GREATEST TWO-YEAR TEAMS
 
Team
Record
Titles
Avg. PF-PA
Differential
1
1972-73 Dolphins
32-2 (.941)
2
25.5-11.5
+10.0 PPG
2
2003-04 Patriots
34-4 (.895)
2
24.8-15.9
+8.9 PPG
3
1985-86 Bears
32-4 (.889)
1
25.3-11.7
+13.6 PPG
4
1982-83 Redskins
28-4 (.875)
1
28.9-17.9
+11.0 PPG
5
1989-90 49ers
32-5 (.865)
1
26.0-14.7
+11.3 PPG
6
1997-98 Broncos
33-6 (.846)
2
30.2-17.9
+12.3 PPG
7
1978-79 Steelers
32-6 (.842)
2
25.4-14.4
+11.0 PPG
8
1996-97 Packers
31-7 (.816)
1
27.5-15.5
+12.0 PPG
9
1992-93 Cowboys
31-7 (.816)
2
26.2-15.0
+11.2 PPG
10
2004-05 Steelers
31-7 (.816)
1
24.1-16.6
+7.5 PPG
11
2005-06 Colts
30-7 (.811)
1
26.7-18.7
+8.0 PPG