Last Updated on March 17, 2026 by Mat Diekhake
| SEASON | TEAM NAME | LEAGUE | DIVISION | GP | WINS | LOSSES | WIN % | HEAD COACH | RESULT |
|---|---|---|---|---|---|---|---|---|---|
| 1946–47 | Boston Celtics | BAA | Eastern | 60 | 22 | 38 | .367 | Honey Russell | Missed Playoffs |
| 1947–48 | Boston Celtics | BAA | Eastern | 48 | 20 | 28 | .417 | Honey Russell | Lost First Round |
| 1948–49 | Boston Celtics | BAA | Eastern | 60 | 25 | 35 | .417 | Alvin Julian | Missed Playoffs |
| 1949–50 | Boston Celtics | NBA | Eastern | 68 | 22 | 46 | .324 | Alvin Julian | Missed Playoffs |
| 1950–51 | Boston Celtics | NBA | Eastern | 69 | 39 | 30 | .565 | Red Auerbach | Lost Division Semifinals |
| 1951–52 | Boston Celtics | NBA | Eastern | 66 | 39 | 27 | .591 | Red Auerbach | Lost Division Semifinals |
| 1952–53 | Boston Celtics | NBA | Eastern | 71 | 46 | 25 | .648 | Red Auerbach | Lost Division Finals |
| 1953–54 | Boston Celtics | NBA | Eastern | 72 | 42 | 30 | .583 | Red Auerbach | Lost Division Semifinals |
| 1954–55 | Boston Celtics | NBA | Eastern | 72 | 36 | 36 | .500 | Red Auerbach | Lost Division Semifinals |
| 1955–56 | Boston Celtics | NBA | Eastern | 72 | 39 | 33 | .542 | Red Auerbach | Lost Division Semifinals |
| 1956–57 | Boston Celtics | NBA | Eastern | 72 | 44 | 28 | .611 | Red Auerbach | Won NBA Championship |
| 1957–58 | Boston Celtics | NBA | Eastern | 72 | 49 | 23 | .681 | Red Auerbach | Lost NBA Finals |
| 1958–59 | Boston Celtics | NBA | Eastern | 72 | 52 | 20 | .722 | Red Auerbach | Won NBA Championship |
| 1959–60 | Boston Celtics | NBA | Eastern | 75 | 59 | 16 | .787 | Red Auerbach | Won NBA Championship |
| 1960–61 | Boston Celtics | NBA | Eastern | 79 | 57 | 22 | .722 | Red Auerbach | Won NBA Championship |
| 1961–62 | Boston Celtics | NBA | Eastern | 80 | 60 | 20 | .750 | Red Auerbach | Won NBA Championship |
| 1962–63 | Boston Celtics | NBA | Eastern | 80 | 58 | 22 | .725 | Red Auerbach | Won NBA Championship |
| 1963–64 | Boston Celtics | NBA | Eastern | 80 | 59 | 21 | .738 | Red Auerbach | Won NBA Championship |
| 1964–65 | Boston Celtics | NBA | Eastern | 80 | 62 | 18 | .775 | Red Auerbach | Won NBA Championship |
| 1965–66 | Boston Celtics | NBA | Eastern | 80 | 54 | 26 | .675 | Red Auerbach | Won NBA Championship |
| 1966–67 | Boston Celtics | NBA | Eastern | 81 | 60 | 21 | .741 | Bill Russell | Lost Division Finals |
| 1967–68 | Boston Celtics | NBA | Eastern | 82 | 54 | 28 | .659 | Bill Russell | Won NBA Championship |
| 1968–69 | Boston Celtics | NBA | Eastern | 82 | 48 | 34 | .585 | Bill Russell | Won NBA Championship |
| 1969–70 | Boston Celtics | NBA | Eastern | 82 | 34 | 48 | .415 | Tom Heinsohn | Missed Playoffs |
| 1970–71 | Boston Celtics | NBA | Atlantic | 82 | 44 | 38 | .537 | Tom Heinsohn | Missed Playoffs |
| 1971–72 | Boston Celtics | NBA | Atlantic | 82 | 56 | 26 | .683 | Tom Heinsohn | Lost Conference Finals |
| 1972–73 | Boston Celtics | NBA | Atlantic | 82 | 68 | 14 | .829 | Tom Heinsohn | Lost Conference Finals |
| 1973–74 | Boston Celtics | NBA | Atlantic | 82 | 56 | 26 | .683 | Tom Heinsohn | Won NBA Championship |
| 1974–75 | Boston Celtics | NBA | Atlantic | 82 | 60 | 22 | .732 | Tom Heinsohn | Lost Conference Finals |
| 1975–76 | Boston Celtics | NBA | Atlantic | 82 | 54 | 28 | .659 | Tom Heinsohn | Won NBA Championship |
| 1976–77 | Boston Celtics | NBA | Atlantic | 82 | 44 | 38 | .537 | Tom Heinsohn | Lost Conference Semifinals |
| 1977–78 | Boston Celtics | NBA | Atlantic | 82 | 32 | 50 | .390 | Tom Heinsohn / Tom Sanders | Missed Playoffs |
| 1978–79 | Boston Celtics | NBA | Atlantic | 82 | 29 | 53 | .354 | Tom Sanders / Dave Cowens | Missed Playoffs |
| 1979–80 | Boston Celtics | NBA | Atlantic | 82 | 61 | 21 | .744 | Bill Fitch | Lost NBA Finals |
| 1980–81 | Boston Celtics | NBA | Atlantic | 82 | 62 | 20 | .756 | Bill Fitch | Won NBA Championship |
| 1981–82 | Boston Celtics | NBA | Atlantic | 82 | 63 | 19 | .768 | Bill Fitch | Lost Conference Finals |
| 1982–83 | Boston Celtics | NBA | Atlantic | 82 | 56 | 26 | .683 | Bill Fitch | Lost Conference Semifinals |
| 1983–84 | Boston Celtics | NBA | Atlantic | 82 | 62 | 20 | .756 | K. C. Jones | Won NBA Championship |
| 1984–85 | Boston Celtics | NBA | Atlantic | 82 | 63 | 19 | .768 | K. C. Jones | Lost NBA Finals |
| 1985–86 | Boston Celtics | NBA | Atlantic | 82 | 67 | 15 | .817 | K. C. Jones | Won NBA Championship |
| 1986–87 | Boston Celtics | NBA | Atlantic | 82 | 59 | 23 | .720 | K. C. Jones | Lost NBA Finals |
| 1987–88 | Boston Celtics | NBA | Atlantic | 82 | 57 | 25 | .695 | K. C. Jones | Lost Conference Finals |
| 1988–89 | Boston Celtics | NBA | Atlantic | 82 | 42 | 40 | .512 | Jimmy Rodgers | Lost First Round |
| 1989–90 | Boston Celtics | NBA | Atlantic | 82 | 52 | 30 | .634 | Jimmy Rodgers | Lost First Round |
| 1990–91 | Boston Celtics | NBA | Atlantic | 82 | 56 | 26 | .683 | Chris Ford | Lost Conference Semifinals |
| 1991–92 | Boston Celtics | NBA | Atlantic | 82 | 51 | 31 | .622 | Chris Ford | Lost Conference Semifinals |
| 1992–93 | Boston Celtics | NBA | Atlantic | 82 | 48 | 34 | .585 | Chris Ford | Lost First Round |
| 1993–94 | Boston Celtics | NBA | Atlantic | 82 | 32 | 50 | .390 | Chris Ford / Don Casey | Missed Playoffs |
| 1994–95 | Boston Celtics | NBA | Atlantic | 82 | 35 | 47 | .427 | M. L. Carr | Missed Playoffs |
| 1995–96 | Boston Celtics | NBA | Atlantic | 82 | 33 | 49 | .402 | M. L. Carr | Missed Playoffs |
| 1996–97 | Boston Celtics | NBA | Atlantic | 82 | 15 | 67 | .183 | M. L. Carr | Missed Playoffs |
| 1997–98 | Boston Celtics | NBA | Atlantic | 82 | 36 | 46 | .439 | Rick Pitino | Missed Playoffs |
| 1998–99 | Boston Celtics | NBA | Atlantic | 50 | 19 | 31 | .380 | Rick Pitino | Missed Playoffs |
| 1999–00 | Boston Celtics | NBA | Atlantic | 82 | 35 | 47 | .427 | Rick Pitino | Missed Playoffs |
| 2000–01 | Boston Celtics | NBA | Atlantic | 82 | 36 | 46 | .439 | Rick Pitino / Jim O’Brien | Missed Playoffs |
| 2001–02 | Boston Celtics | NBA | Atlantic | 82 | 49 | 33 | .598 | Jim O’Brien | Lost Conference Finals |
| 2002–03 | Boston Celtics | NBA | Atlantic | 82 | 44 | 38 | .537 | Jim O’Brien | Lost Conference Semifinals |
| 2003–04 | Boston Celtics | NBA | Atlantic | 82 | 36 | 46 | .439 | Jim O’Brien / John Carroll | Missed Playoffs |
| 2004–05 | Boston Celtics | NBA | Atlantic | 82 | 45 | 37 | .549 | Doc Rivers | Lost First Round |
| 2005–06 | Boston Celtics | NBA | Atlantic | 82 | 33 | 49 | .402 | Doc Rivers | Lost First Round |
| 2006–07 | Boston Celtics | NBA | Atlantic | 82 | 24 | 58 | .293 | Doc Rivers | Missed Playoffs |
| 2007–08 | Boston Celtics | NBA | Atlantic | 82 | 66 | 16 | .805 | Doc Rivers | Won NBA Championship |
| 2008–09 | Boston Celtics | NBA | Atlantic | 82 | 62 | 20 | .756 | Doc Rivers | Lost Conference Semifinals |
| 2009–10 | Boston Celtics | NBA | Atlantic | 82 | 50 | 32 | .610 | Doc Rivers | Lost NBA Finals |
| 2010–11 | Boston Celtics | NBA | Atlantic | 82 | 56 | 26 | .683 | Doc Rivers | Lost Conference Semifinals |
| 2011–12 | Boston Celtics | NBA | Atlantic | 66 | 39 | 27 | .591 | Doc Rivers | Lost Conference Finals |
| 2012–13 | Boston Celtics | NBA | Atlantic | 81 | 41 | 40 | .506 | Doc Rivers | Lost First Round |
| 2013–14 | Boston Celtics | NBA | Atlantic | 82 | 25 | 57 | .305 | Brad Stevens | Missed Playoffs |
| 2014–15 | Boston Celtics | NBA | Atlantic | 82 | 40 | 42 | .488 | Brad Stevens | Lost First Round |
| 2015–16 | Boston Celtics | NBA | Atlantic | 82 | 48 | 34 | .585 | Brad Stevens | Lost First Round |
| 2016–17 | Boston Celtics | NBA | Atlantic | 82 | 53 | 29 | .646 | Brad Stevens | Lost Conference Finals |
| 2017–18 | Boston Celtics | NBA | Atlantic | 82 | 55 | 27 | .671 | Brad Stevens | Lost Conference Finals |
| 2018–19 | Boston Celtics | NBA | Atlantic | 82 | 49 | 33 | .598 | Brad Stevens | Lost Conference Semifinals |
| 2019–20 | Boston Celtics | NBA | Atlantic | 72 | 48 | 24 | .667 | Brad Stevens | Lost Conference Finals |
| 2020–21 | Boston Celtics | NBA | Atlantic | 72 | 36 | 36 | .500 | Brad Stevens | Lost First Round |
| 2021–22 | Boston Celtics | NBA | Atlantic | 82 | 51 | 31 | .622 | Ime Udoka | Lost NBA Finals |
| 2022–23 | Boston Celtics | NBA | Atlantic | 82 | 57 | 25 | .695 | Joe Mazzulla | Lost Conference Finals |
| 2023–24 | Boston Celtics | NBA | Atlantic | 82 | 64 | 18 | .780 | Joe Mazzulla | Won NBA Championship |
| 2024–25 | Boston Celtics | NBA | Atlantic | 82 | 61 | 21 | .744 | Joe Mazzulla | Lost Conference Semifinals |