The 50 greatest decades by these teams (includes all decades FOR THESE TEAMS with a winning percentage over .850):
1) .9245 Oklahoma, 1948-1957 (Oklahoma's first appearance on this list)
1 (tie) .9245 Oklahoma 1949-1958
3) .9095 Oklahoma, 1947-1956
4) .9071 Bama, 2009-2018 (Alabama's first appearance on this list)
5) .8993 Bama, 2008-2017
6) .8983 Oklahoma, 1971-1980
7) .8952 Oklahoma, 1950-1959
8) .8921 Bama, 2010-2019
9) .8917 Miami, FL 1985-1994 (Miami's first appearance on this list)
9(tie) .8917 Bama, 1971-1980
11) .8911 FSU, 1991-2000 (Florida State's first appearance on this list)
12) .8902 FSU, 1990-1999
13) .8843 Miami, FL 1983-1992
14) .8824 Miami, 1986-1995
15) .8821 Oklahoma, 1946-1955
16) .8811 Florida State, 1987-1996
16 (tie) .8811 Florida State, 1988-1997
17) .8810 Nebraska, 1992-2001 (Nebraska's first appearance on this list)
18) .8792 Bama, 1972-1981
19) .8771 Oklahoma, 1970-1979
20) .8763 Notre Dame, 1940-1949 (Notre Dame's first appearance on this list)
21) .8760 Nebraska, 1991-2000
22) .8750 Nebraska 1988-1997
23) .8740 FSU, 1989-1998
23(tie) .8740 FSU, 1992-2001
25) .8686 Oklahoma, 1972-1981
26) .8680 Nebraska, 1990-1999
27) .8678 Miami, FL, 1984-1993
28) .8655 Miami, FL, 1987-1996
29) .8632 Bama, 1929-1938
30) .8625 Bama, 1970-1979
30(tie) .8625 Bama, 1973-1982
32) .8589 Nebraska, 1989-1988
33) .8583 Miami, FL, 1982-1991
34) .8579 Bama, 1930-1939
35) .8577 Nebraska, 1987-1996
36) .8571 Bama, 2007-2016
37) .8566 Nebraska, 1986-1995
38) .8557 Notre Dame, 1946-1955
39) .8553 Michigan, 1969-1978 (Michigan's first appearance on this list)
40) .8548 Tennessee, 1937-1946 (Tennessee's first appearance on this list)
41) .8545 Bama, 1959-1968
42) .8542 Notre Dame, 1939-1948
43) .8537 Ohio State, 2010-2019 (Ohio State's first appearance on this list)
44) .8534 Penn state, 1968-1977 (Penn State's first appearance on this list)
45) .8527 Texas, 2000-2009 (Texas' first appearance on this list)
46) .8527 (rounds the same, but not actually tied) Michigan, 1968-1977
47) .8525 FSU, 1986-1995
48) .8516 Nebraska, 1993-2002
49) .8505 Notre Dame, 1941-1950
49(tie) .8505 Notre Dame, 1945-1954
