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| 1 NBA championship season: 2015-16 |
| Last NBA championship: 2015-16, 9 seasons ago |
| Best finish: |
| beat Golden State in NBA Finals in 2015-16 season |
| TEAM | SEASON | RECORD | PERC | DIV STD | GB | CNF STD | PLAYOFFS |
| Cleveland | 1970-71 | 15-67 | .183 | 4th Central | -27.0 | --- East | missed playoffs |
| Cleveland | 1971-72 | 23-59 | .280 | 4th Central | -15.0 | --- East | missed playoffs |
| Cleveland | 1972-73 | 32-50 | .390 | 4th Central | -20.0 | --- East | missed playoffs |
| Cleveland | 1973-74 | 29-53 | .354 | 4th Central | -18.0 | --- East | missed playoffs |
| Cleveland | 1974-75 | 40-42 | .488 | 3rd Central | -20.0 | --- East | missed playoffs |
| Cleveland | 1975-76 | 49-33 | .598 | 1st Central | + 1.0 | 2nd East | bye WWsB LBos |
| Cleveland | 1976-77 | 43-39 | .524 | 4th Central | - 6.0 | 6th East | LWsB |
| Cleveland | 1977-78 | 43-39 | .524 | 3rd Central | - 9.0 | 5th East | LNY |
| Cleveland | 1978-79 | 30-52 | .366 | 4th Central | -18.0 | --- East | missed playoffs |
| Cleveland | 1979-80 | 37-45 | .451 | 5th Central | -13.0 | --- East | missed playoffs |
| Cleveland | 1980-81 | 28-54 | .341 | 5th Central | -32.0 | --- East | missed playoffs |
| Cleveland | 1981-82 | 15-67 | .183 | 6th Central | -40.0 | --- East | missed playoffs |
| Cleveland | 1982-83 | 23-59 | .280 | 5th Central | -28.0 | --- East | missed playoffs |
| Cleveland | 1983-84 | 28-54 | .341 | 4th Central | -22.0 | --- East | missed playoffs |
| Cleveland | 1984-85 | 36-46 | .439 | 4th Central | -23.0 | 8th East | LBos |
| Cleveland | 1985-86 | 29-53 | .354 | 5th Central | -28.0 | --- East | missed playoffs |
| Cleveland | 1986-87 | 31-51 | .378 | 6th Central | -26.0 | --- East | missed playoffs |
| Cleveland | 1987-88 | 42-40 | .512 | 5th Central | -12.0 | 6th East | LChi |
| Cleveland | 1988-89 | 57-25 | .695 | 2nd Central | - 6.0 | 3rd East | LChi |
| Cleveland | 1989-90 | 42-40 | .512 | 4th Central | -17.0 | 7th East | LPhi |
| Cleveland | 1990-91 | 33-49 | .402 | 6th Central | -28.0 | --- East | missed playoffs |
| Cleveland | 1991-92 | 57-25 | .695 | 2nd Central | -10.0 | 3rd East | WNJ WBos LChi |
| Cleveland | 1992-93 | 54-28 | .659 | 2nd Central | - 3.0 | 3rd East | WNJN LChi |
| Cleveland | 1993-94 | 47-35 | .573 | 4th Central | -10.0 | 6th East | LChi |
| Cleveland | 1994-95 | 43-39 | .524 | 4th Central | - 9.0 | 6th East | LNY |
| Cleveland | 1995-96 | 47-35 | .573 | 3rd Central | -25.0 | 4th East | LNY |
| Cleveland | 1996-97 | 42-40 | .512 | 5th Central | -27.0 | --- East | missed playoffs |
| Cleveland | 1997-98 | 47-35 | .573 | 5th Central | -15.0 | 6th East | LInd |
| Cleveland | 1998-99 | 22-28 | .440 | 7th Central | -11.0 | --- East | missed playoffs |
| Cleveland | 1999-00 | 32-50 | .390 | 6th Central | -24.0 | --- East | missed playoffs |
| Cleveland | 2000-01 | 30-52 | .366 | 6th Central | -22.0 | --- East | missed playoffs |
| Cleveland | 2001-02 | 29-53 | .354 | 7th Central | -21.0 | --- East | missed playoffs |
| Cleveland | 2002-03 | 17-65 | .207 | 8th Central | -33.0 | --- East | missed playoffs |
| Cleveland | 2003-04 | 35-47 | .427 | 5th Central | -26.0 | --- East | missed playoffs |
| Cleveland | 2004-05 | 42-40 | .512 | 4th Central | -12.0 | --- East | missed playoffs |
| Cleveland | 2005-06 | 50-32 | .610 | 2nd Central | -14.0 | 4th East | WWsh LDet |
| Cleveland | 2006-07 | 50-32 | .610 | 2nd Central | - 3.0 | 2nd East | WWsh WNJ WDet LSA |
| Cleveland | 2007-08 | 45-37 | .549 | 2nd Central | -14.0 | 4th East | WWsh LBos |
| Cleveland | 2008-09 | 66-16 | .805 | 1st Central | +25.0 | 1st East | WDet WAtl LOrl |
| Cleveland | 2009-10 | 61-21 | .744 | 1st Central | +15.0 | 1st East | WChi LBos |
| Cleveland | 2010-11 | 19-63 | .232 | 5th Central | -43.0 | --- East | missed playoffs |
| Cleveland | 2011-12 | 21-45 | .318 | 5th Central | -29.0 | --- East | missed playoffs |
| Cleveland | 2012-13 | 24-58 | .293 | 5th Central | -25.5 | --- East | missed playoffs |
| Cleveland | 2013-14 | 33-49 | .402 | 3rd Central | -23.0 | --- East | missed playoffs |
| Cleveland | 2014-15 | 53-29 | .646 | 1st Central | + 3.0 | 2nd East | WBos WChi WAtl LGS |
| %Cleveland | 2015-16 | 57-25 | .695 | 1st Central | +12.0 | 1st East | WDet WAtl WTor WGS |
| Cleveland | 2016-17 | 51-31 | .622 | 1st Central | + 9.0 | 2nd East | WInd WTor WBos LGS |
| Cleveland | 2017-18 | 50-32 | .610 | 1st Central | + 2.0 | 4th East | WInd WTor WBos LGS |
| Cleveland | 2018-19 | 19-63 | .232 | 5th Central | -41.0 | --- East | missed playoffs |
| Cleveland | 2019-20 | 19-46 | .232 | 5th Central | -41.0 | --- East | missed playoffs |
| Cleveland | 2020-21 | 22-50 | .306 | 4th Central | -24.0 | --- East | missed playoffs |
| Cleveland | 2021-22 | 44-38 | .537 | 3rd Central | - 7.0 | 8th East | LBkn LAtl |
| Cleveland | 2022-23 | 51-31 | .622 | 2nd Central | - 7.0 | 4th East | LNY |
| Cleveland | 2023-24 | 48-34 | .585 | 2nd Central | - 1.0 | 4th East | WOrl LBos |
| Cleveland | 2024-25 | 64-18 | .780 | 1st Central | +14.0 | 1st East | WMia LInd |