NFL : Biggest year to year improvements 
Change in All Time: win % 1 Indianapolis Colts 1998 -> 1999 0.625 (0.188 -> 0.813) 1 Miami Dolphins 2007 -> 2008 0.625 (0.063 -> 0.688) 3 New England Patriots 1975 -> 1976 0.572 (0.214 -> 0.786) 4 Indianapolis Colts 1974 -> 1975 0.571 (0.143 -> 0.714) 5 Dallas Cowboys 2015 -> 2016 0.563 (0.250 -> 0.813) 5 Indianapolis Colts 2011 -> 2012 0.563 (0.125 -> 0.688) 5 Kansas City Chiefs 2012 -> 2013 0.563 (0.125 -> 0.688) 5 Los Angeles Rams 1998 -> 1999 0.563 (0.250 -> 0.813) 5 Pittsburgh Steelers 2003 -> 2004 0.563 (0.375 -> 0.938) 5 San Francisco 49ers 2018 -> 2019 0.563 (0.250 -> 0.813) 11 Indianapolis Colts 1991 -> 1992 0.501 (0.062 -> 0.563) 11 New York Jets 1996 -> 1997 0.501 (0.062 -> 0.563) 13 Chicago Bears 2000 -> 2001 0.500 (0.313 -> 0.813) 13 Los Angeles Chargers 2003 -> 2004 0.500 (0.250 -> 0.750) 15 Cincinnati Bengals 1987 -> 1988 0.483 (0.267 -> 0.750) 16 Carolina Panthers 2014 -> 2015 0.469 (0.469 -> 0.938) 16 Cleveland Browns 2017 -> 2018 0.469 (0.000 -> 0.469) 18 Tennessee Titans 1966 -> 1967 0.465 (0.214 -> 0.679) 19 Miami Dolphins 1969 -> 1970 0.464 (0.250 -> 0.714) 20 Las Vegas Raiders 1981 -> 1982 0.451 (0.438 -> 0.889) 21 Atlanta Falcons 2007 -> 2008 0.438 (0.250 -> 0.688) 21 Baltimore Ravens 2005 -> 2006 0.438 (0.375 -> 0.813) 21 Denver Broncos 1990 -> 1991 0.438 (0.312 -> 0.750) 21 Detroit Lions 1979 -> 1980 0.438 (0.125 -> 0.563) 21 Houston Texans 2013 -> 2014 0.438 (0.125 -> 0.563) 21 Houston Texans 2017 -> 2018 0.438 (0.250 -> 0.688) 21 Los Angeles Chargers 1991 -> 1992 0.438 (0.250 -> 0.688) 21 Los Angeles Rams 2016 -> 2017 0.438 (0.250 -> 0.688) Last season: Houston Texans 2022 -> 2023 0.382 (0.206 -> 0.588) Los Angeles Rams 2022 -> 2023 0.294 (0.294 -> 0.588) Indianapolis Colts 2022 -> 2023 0.264 (0.265 -> 0.529) Chicago Bears 2022 -> 2023 0.236 (0.176 -> 0.412) Cleveland Browns 2022 -> 2023 0.235 (0.412 -> 0.647) Baltimore Ravens 2022 -> 2023 0.177 (0.588 -> 0.765) Denver Broncos 2022 -> 2023 0.177 (0.294 -> 0.471) Detroit Lions 2022 -> 2023 0.177 (0.529 -> 0.706) Las Vegas Raiders 2022 -> 2023 0.118 (0.353 -> 0.471) Miami Dolphins 2022 -> 2023 0.118 (0.529 -> 0.647) New Orleans Saints 2022 -> 2023 0.117 (0.412 -> 0.529) Pittsburgh Steelers 2022 -> 2023 0.059 (0.529 -> 0.588) Green Bay Packers 2022 -> 2023 0.058 (0.471 -> 0.529) Tampa Bay Buccaneers 2022 -> 2023 0.058 (0.471 -> 0.529)
Last updated: February 11, 2024
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