18 league titles: 2023-24, 2007-08, 1985-86, 1983-84, 1980-81, 1975-76, 1973-74, 1968-69, 1967-68, 1965-66, 1964-65, 1963-64, 1962-63, 1961-62, 1960-61, 1959-60, 1958-59, 1956-57.
Franchise history
Regular-season record. Division finish uses that season's division alignment.
| 2026-27 | 10 | 2 | .833 | 1st Atlantic | — |
| 2025-26 | 56 | 26 | .683 | 1st Atlantic | Playoffs3-4 |
| 2024-25 | 61 | 21 | .744 | 1st Atlantic | Playoffs6-5 |
| 2023-24 | 64 | 18 | .780 | 1st Atlantic | Champions16-3 |
| 2022-23 | 57 | 25 | .695 | 1st Atlantic | Playoffs11-9 |
| 2021-22 | 51 | 31 | .622 | 1st Atlantic | Lost Finals14-10 |
| 2020-21 | 36 | 36 | .500 | 4th Atlantic | Playoffs2-4 |
| 2019-20 | 48 | 24 | .667 | 2nd Atlantic | Playoffs10-7 |
| 2018-19 | 49 | 33 | .598 | 3rd Atlantic | Playoffs5-4 |
| 2017-18 | 55 | 27 | .671 | 2nd Atlantic | Playoffs11-8 |
| 2016-17 | 53 | 29 | .646 | 1st Atlantic | Playoffs9-9 |
| 2015-16 | 48 | 34 | .585 | 2nd Atlantic | Playoffs2-4 |
| 2014-15 | 40 | 42 | .488 | 2nd Atlantic | Playoffs0-4 |
| 2013-14 | 25 | 57 | .305 | 4th Atlantic | — |
| 2012-13 | 41 | 40 | .506 | 3rd Atlantic | Playoffs2-4 |
| 2011-12 | 39 | 27 | .591 | 1st Atlantic | Playoffs11-9 |
| 2010-11 | 56 | 26 | .683 | 1st Atlantic | Playoffs5-4 |
| 2009-10 | 50 | 32 | .610 | 1st Atlantic | Lost Finals15-9 |
| 2008-09 | 62 | 20 | .756 | 1st Atlantic | Playoffs7-7 |
| 2007-08 | 66 | 16 | .805 | 1st Atlantic | Champions16-10 |
| 2006-07 | 24 | 58 | .293 | 5th Atlantic | — |
| 2005-06 | 33 | 49 | .402 | 3rd Atlantic | — |
| 2004-05 | 45 | 37 | .549 | 1st Atlantic | Playoffs3-4 |
| 2003-04 | 36 | 46 | .439 | 4th Atlantic | Playoffs0-4 |
| 2002-03 | 44 | 38 | .537 | 3rd Atlantic | Playoffs4-6 |
| 2001-02 | 49 | 33 | .598 | 2nd Atlantic | Playoffs9-7 |
| 2000-01 | 36 | 46 | .439 | 5th Atlantic | — |
| 1999-00 | 35 | 47 | .427 | 5th Atlantic | — |
| 1998-99 | 19 | 31 | .380 | 5th Atlantic | — |
| 1997-98 | 36 | 46 | .439 | 6th Atlantic | — |
| 1996-97 | 15 | 67 | .183 | 7th Atlantic | — |
| 1995-96 | 33 | 49 | .402 | 5th Atlantic | — |
| 1994-95 | 35 | 47 | .427 | 3rd Atlantic | Playoffs1-3 |
| 1993-94 | 32 | 50 | .390 | 4th Atlantic | — |
| 1992-93 | 48 | 34 | .585 | 2nd Atlantic | Playoffs1-3 |
| 1991-92 | 51 | 31 | .622 | 1st Atlantic | Playoffs6-4 |
| 1990-91 | 56 | 26 | .683 | 1st Atlantic | Playoffs5-6 |
| 1989-90 | 52 | 30 | .634 | 2nd Atlantic | Playoffs2-3 |
| 1988-89 | 42 | 40 | .512 | 3rd Atlantic | Playoffs0-3 |
| 1987-88 | 57 | 25 | .695 | 1st Atlantic | Playoffs9-8 |
| 1986-87 | 59 | 23 | .720 | 1st Atlantic | Lost Finals13-10 |
| 1985-86 | 67 | 15 | .817 | 1st Atlantic | Champions15-3 |
| 1984-85 | 63 | 19 | .768 | 1st Atlantic | Lost Finals13-8 |
| 1983-84 | 62 | 20 | .756 | 1st Atlantic | Champions15-8 |
| 1982-83 | 56 | 26 | .683 | 2nd Atlantic | Playoffs2-5 |
| 1981-82 | 63 | 19 | .768 | 1st Atlantic | Playoffs7-5 |
| 1980-81 | 62 | 20 | .756 | 1st Atlantic | Champions12-5 |
| 1979-80 | 61 | 21 | .744 | 1st Atlantic | Playoffs5-4 |
