Boston Celtics
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Boston Celtics Worst Regular Seasons by Winning Percentage
This is the full list of Celtics regular season records sorted from worst to best, with details of games won and lost, and stats such as points, rebounds, assists, steals and blocks.
Related: All-time Worst Regular Season Teams
What was the worst regular season in Boston Celtics history?
The 1997 Boston Celtics recorded 15 wins and 67 losses, for a .183 winning percentage — the worst mark in franchise history.
Franchise Worst Season Record
15-67 (.183)
1997 Boston Celtics
= NBA Champions
= Season in progress /
Boston Celtics Worst Season Records in NBA History, by Winning %
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| Rk | Season | Team |
W-L |
WPct | FG% | 3P% | FT% | Reb | Ast | Stl | Blk | Pts Team |
Pts Opp |
|
| 1. | 1997 | Boston Celtics | 15-67 | .183 | .440 | .351 | .750 | 40.0 | 21.9 | 9.9 | 3.8 | 100.6 | 107.9 | |
| 2. | 2007 | Boston Celtics | 24-58 | .293 | .443 | .367 | .767 | 40.4 | 19.9 | 7.2 | 4.7 | 95.8 | 99.2 | |
| 3. | 2014 | Boston Celtics | 25-57 | .305 | .435 | .333 | .777 | 42.5 | 21.0 | 7.1 | 4.2 | 96.2 | 100.7 | |
| 4. | 1950 | Boston Celtics | 22-46 | .324 | .338 | - | .707 | - | 21.7 | - | - | 79.7 | 82.2 | |
| 5. | 1979 | Boston Celtics | 29-53 | .354 | .480 | - | .784 | 42.9 | 24.3 | 8.7 | 3.5 | 108.2 | 113.3 | |
| 6. | 1947 | Boston Celtics | 22-38 | .367 | .272 | - | .590 | - | 7.8 | - | - | 60.1 | 65.0 | |
| 7. | 1999 | Boston Celtics | 19-31 | .380 | .436 | .360 | .692 | 42.8 | 21.5 | 9.1 | 5.1 | 93.0 | 94.9 | |
| 8. | 1994 | Boston Celtics | 32-50 | .390 | .472 | .289 | .730 | 41.7 | 23.5 | 8.2 | 5.4 | 100.8 | 105.1 | |
| 1978 | Boston Celtics | 32-50 | .390 | .458 | - | .779 | 49.8 | 24.0 | 7.8 | 3.6 | 105.7 | 107.7 | ||
| 10. | 2026 | Boston Celtics | 2-3 | .400 | .446 | .331 | .798 | 44.8 | 21.2 | 8.8 | 5.8 | 114.2 | 107.2 |
| Rk | Season | Team |
W-L |
WPct | FG% | 3P% | FT% | Reb | Ast | Stl | Blk | Pts Team |
Pts Opp |
|
| 11. | 2006 | Boston Celtics | 33-49 | .402 | .467 | .362 | .755 | 39.6 | 20.9 | 7.0 | 5.1 | 98.0 | 99.5 | |
| 1996 | Boston Celtics | 33-49 | .402 | .456 | .371 | .714 | 42.4 | 21.9 | 8.0 | 5.0 | 103.6 | 107.0 | ||
| 13. | 1970 | Boston Celtics | 34-48 | .415 | .443 | - | .786 | 52.9 | 22.9 | - | - | 114.9 | 116.8 | |
| 14. | 1949 | Boston Celtics | 25-35 | .417 | .311 | - | .636 | - | 18.9 | - | - | 76.6 | 79.5 | |
| 1948 | Boston Celtics | 20-28 | .417 | .287 | - | .659 | - | 7.6 | - | - | 68.8 | 72.7 | ||
| 16. | 2000 | Boston Celtics | 35-47 | .427 | .444 | .331 | .745 | 43.0 | 21.2 | 9.7 | 3.5 | 99.3 | 100.1 | |
| 1995 | Boston Celtics | 35-47 | .427 | .464 | .368 | .753 | 42.4 | 21.7 | 7.5 | 4.4 | 102.8 | 104.7 | ||
| 18. | 2004 | Boston Celtics | 36-46 | .439 | .443 | .346 | .750 | 40.1 | 20.5 | 9.4 | 4.0 | 95.3 | 96.7 | |
| 2001 | Boston Celtics | 36-46 | .439 | .428 | .363 | .740 | 39.8 | 20.8 | 9.4 | 4.1 | 94.6 | 96.8 | ||
| 1998 | Boston Celtics | 36-46 | .439 | .434 | .332 | .726 | 39.5 | 22.1 | 12.0 | 4.5 | 95.9 | 98.5 |
| Rk | Season | Team |
W-L |
WPct | FG% | 3P% | FT% | Reb | Ast | Stl | Blk | Pts Team |
Pts Opp |
|
| 21. | 2015 | Boston Celtics | 40-42 | .488 | .443 | .327 | .754 | 43.8 | 24.5 | 8.2 | 3.6 | 101.4 | 101.2 | |
| 22. | 2021 | Boston Celtics | 36-36 | .500 | .466 | .374 | .775 | 44.3 | 23.5 | 7.7 | 5.3 | 112.6 | 111.2 | |
| 1955 | Boston Celtics | 36-36 | .500 | .399 | - | .776 | 59.6 | 26.5 | - | - | 101.4 | 101.5 | ||
| 24. | 2013 | Boston Celtics | 41-40 | .506 | .465 | .358 | .776 | 39.3 | 22.8 | 8.2 | 4.5 | 96.5 | 96.7 | |
| 25. | 1989 | Boston Celtics | 42-40 | .512 | .493 | .252 | .783 | 44.2 | 26.7 | 7.8 | 5.1 | 109.2 | 108.1 | |
| 26. | 2003 | Boston Celtics | 44-38 | .537 | .415 | .334 | .742 | 40.5 | 19.2 | 8.8 | 3.7 | 92.7 | 93.1 | |
| 1977 | Boston Celtics | 44-38 | .537 | .445 | - | .756 | 51.3 | 24.5 | 6.2 | 3.2 | 104.5 | 106.5 | ||
| 1971 | Boston Celtics | 44-38 | .537 | .442 | - | .755 | 58.9 | 25.0 | - | - | 117.2 | 115.1 | ||
| 29. | 1956 | Boston Celtics | 39-33 | .542 | .397 | - | .769 | 63.7 | 25.5 | - | - | 106.0 | 105.3 | |
| 30. | 2005 | Boston Celtics | 45-37 | .549 | .468 | .349 | .764 | 40.8 | 22.1 | 8.1 | 5.2 | 101.3 | 100.4 |
| Rk | Season | Team |
W-L |
WPct | FG% | 3P% | FT% | Reb | Ast | Stl | Blk | Pts Team |
Pts Opp |
|
| 31. | 1951 | Boston Celtics | 39-30 | .565 | .368 | - | .725 | 50.7 | 22.9 | - | - | 85.2 | 85.5 | |
| 32. | 1954 | Boston Celtics | 42-30 | .583 | .400 | - | .726 | 53.7 | 24.6 | - | - | 87.7 | 85.4 | |
| 33. | 2016 | Boston Celtics | 48-34 | .585 | .439 | .335 | .788 | 44.9 | 24.2 | 9.2 | 4.2 | 105.7 | 102.5 | |
| 1993 | Boston Celtics | 48-34 | .585 | .487 | .287 | .777 | 42.8 | 24.4 | 7.9 | 5.6 | 103.7 | 102.8 | ||
| 1969 | Boston Celtics | 48-34 | .585 |
|
.431 | - | .729 | 59.0 | 23.8 | - | - | 111.0 | 105.4 | |
| 36. | 2012 | Boston Celtics | 39-27 | .591 | .460 | .367 | .778 | 38.8 | 23.6 | 7.5 | 5.5 | 91.8 | 89.3 | |
| 1952 | Boston Celtics | 39-27 | .591 | .387 | - | .734 | 56.8 | 24.3 | - | - | 91.3 | 87.2 | ||
| 38. | 2019 | Boston Celtics | 49-33 | .598 | .465 | .365 | .802 | 44.5 | 26.3 | 8.6 | 5.3 | 112.4 | 108.0 | |
| 2002 | Boston Celtics | 49-33 | .598 | .424 | .359 | .764 | 42.2 | 21.0 | 9.7 | 3.6 | 96.4 | 94.1 | ||
| 40. | 2010 | Boston Celtics | 50-32 | .610 | .483 | .348 | .746 | 38.6 | 23.5 | 8.5 | 4.9 | 99.2 | 95.6 |
| Rk | Season | Team |
W-L |
WPct | FG% | 3P% | FT% | Reb | Ast | Stl | Blk | Pts Team |
Pts Opp |
|
| 41. | 1957 | Boston Celtics | 44-28 | .611 |
|
.383 | - | .750 | 68.9 | 20.3 | - | - | 105.5 | 100.2 |
| 42. | 2022 | Boston Celtics | 51-31 | .622 | .466 | .356 | .816 | 46.1 | 24.8 | 7.2 | 5.8 | 111.8 | 104.5 | |
| 1992 | Boston Celtics | 51-31 | .622 | .492 | .306 | .808 | 44.9 | 25.3 | 7.8 | 5.9 | 106.6 | 103.0 | ||
| 44. | 1990 | Boston Celtics | 52-30 | .634 | .498 | .262 | .832 | 46.0 | 29.5 | 6.6 | 5.5 | 110.0 | 106.0 | |
| 45. | 2017 | Boston Celtics | 53-29 | .646 | .454 | .359 | .807 | 42.0 | 25.2 | 7.5 | 4.1 | 108.0 | 105.4 | |
| 46. | 1953 | Boston Celtics | 46-25 | .648 | .392 | - | .728 | 54.4 | 23.5 | - | - | 88.1 | 85.8 | |
| 47. | 1976 | Boston Celtics | 54-28 | .659 |
|
.446 | - | .780 | 52.9 | 24.1 | 6.8 | 3.2 | 106.2 | 103.9 |
| 1968 | Boston Celtics | 54-28 | .659 |
|
.440 | - | .721 | 69.1 | 21.9 | - | - | 116.1 | 112.0 | |
| 49. | 2020 | Boston Celtics | 48-24 | .667 | .461 | .364 | .801 | 46.1 | 23.0 | 8.3 | 5.6 | 113.7 | 107.3 | |
| 50. | 2018 | Boston Celtics | 55-27 | .671 | .450 | .377 | .771 | 44.5 | 22.5 | 7.4 | 4.5 | 104.0 | 100.4 |
| Rk | Season | Team |
W-L |
WPct | FG% | 3P% | FT% | Reb | Ast | Stl | Blk | Pts Team |
Pts Opp |
|
| 51. | 1966 | Boston Celtics | 54-26 | .675 |
|
.417 | - | .739 | 69.9 | 22.4 | - | - | 112.7 | 107.8 |
| 52. | 1958 | Boston Celtics | 49-23 | .681 | .387 | - | .737 | 75.0 | 20.9 | - | - | 109.9 | 104.4 | |
| 53. | 2011 | Boston Celtics | 56-26 | .683 | .486 | .365 | .770 | 38.8 | 23.4 | 8.2 | 4.2 | 96.5 | 91.1 | |
| 1991 | Boston Celtics | 56-26 | .683 | .512 | .315 | .824 | 46.2 | 26.3 | 8.2 | 6.9 | 111.5 | 105.7 | ||
| 1983 | Boston Celtics | 56-26 | .683 | .492 | .210 | .737 | 46.4 | 27.0 | 9.6 | 6.4 | 112.1 | 106.7 | ||
| 1974 | Boston Celtics | 56-26 | .683 |
|
.456 | - | .800 | 54.3 | 26.7 | 6.8 | 3.7 | 109.0 | 105.1 | |
| 1972 | Boston Celtics | 56-26 | .683 | .453 | - | .777 | 54.4 | 27.2 | - | - | 115.6 | 110.8 | ||
| 58. | 2023 | Boston Celtics | 57-25 | .695 | .475 | .377 | .812 | 45.3 | 26.7 | 6.4 | 5.2 | 117.9 | 111.4 | |
| 1988 | Boston Celtics | 57-25 | .695 | .521 | .384 | .803 | 41.1 | 29.9 | 7.6 | 5.1 | 113.6 | 107.7 | ||
| 60. | 1987 | Boston Celtics | 59-23 | .720 | .517 | .366 | .808 | 42.9 | 29.5 | 6.8 | 6.4 | 112.6 | 106.0 |
| Rk | Season | Team |
W-L |
WPct | FG% | 3P% | FT% | Reb | Ast | Stl | Blk | Pts Team |
Pts Opp |
|
| 61. | 1961 | Boston Celtics | 57-22 | .722 |
|
.398 | - | .735 | 77.6 | 23.7 | - | - | 119.7 | 114.1 |
| 62. | 1959 | Boston Celtics | 52-20 | .722 |
|
.395 | - | .766 | 77.8 | 21.8 | - | - | 116.4 | 109.9 |
| 63. | 1963 | Boston Celtics | 58-22 | .725 |
|
.427 | - | .725 | 72.7 | 24.5 | - | - | 118.8 | 111.6 |
| 64. | 1975 | Boston Celtics | 60-22 | .732 | .458 | - | .791 | 52.0 | 26.3 | 8.1 | 3.5 | 106.5 | 100.8 | |
| 65. | 1964 | Boston Celtics | 59-21 | .738 |
|
.413 | - | .725 | 71.7 | 22.0 | - | - | 113.0 | 105.1 |
| 66. | 1967 | Boston Celtics | 60-21 | .741 | .447 | - | .748 | 70.4 | 24.2 | - | - | 119.3 | 111.3 | |
| 67. | 2025 | Boston Celtics | 61-21 | .744 | .462 | .368 | .799 | 45.3 | 26.1 | 7.2 | 5.5 | 116.3 | 107.2 | |
| 1980 | Boston Celtics | 61-21 | .744 | .490 | .384 | .779 | 44.9 | 26.8 | 9.9 | 3.8 | 113.5 | 105.7 | ||
| 69. | 1962 | Boston Celtics | 60-20 | .750 |
|
.423 | - | .728 | 76.0 | 25.6 | - | - | 121.1 | 111.9 |
| 70. | 2009 | Boston Celtics | 62-20 | .756 | .486 | .397 | .765 | 42.1 | 22.7 | 7.6 | 4.7 | 100.9 | 93.4 | |
| 1984 | Boston Celtics | 62-20 | .756 |
|
.500 | .240 | .792 | 45.1 | 25.9 | 8.2 | 5.2 | 112.1 | 105.6 | |
| 1981 | Boston Celtics | 62-20 | .756 |
|
.504 | .270 | .752 | 43.6 | 26.9 | 8.3 | 7.2 | 109.9 | 104.0 |
| Rk | Season | Team |
W-L |
WPct | FG% | 3P% | FT% | Reb | Ast | Stl | Blk | Pts Team |
Pts Opp |
|
| 73. | 1985 | Boston Celtics | 63-19 | .768 | .508 | .356 | .806 | 45.7 | 27.9 | 7.9 | 5.0 | 114.8 | 108.1 | |
| 1982 | Boston Celtics | 63-19 | .768 | .499 | .266 | .740 | 45.6 | 25.9 | 8.0 | 6.9 | 112.0 | 105.6 | ||
| 75. | 1965 | Boston Celtics | 62-18 | .775 |
|
.414 | - | .731 | 71.9 | 22.2 | - | - | 112.8 | 104.4 |
| 76. | 2024 | Boston Celtics | 64-18 | .780 |
|
.487 | .388 | .807 | 46.3 | 26.9 | 6.8 | 6.6 | 120.6 | 109.2 |
| 77. | 1960 | Boston Celtics | 59-16 | .787 |
|
.417 | - | .734 | 80.2 | 24.7 | - | - | 124.5 | 116.2 |
| 78. | 2008 | Boston Celtics | 66-16 | .805 |
|
.475 | .381 | .771 | 42.0 | 22.4 | 8.5 | 4.6 | 100.5 | 90.3 |
| 79. | 1986 | Boston Celtics | 67-15 | .817 |
|
.508 | .351 | .794 | 46.4 | 29.1 | 7.8 | 6.2 | 114.1 | 104.7 |
| 80. | 1973 | Boston Celtics | 68-14 | .829 | .448 | - | .780 | 58.6 | 28.3 | - | - | 112.7 | 104.5 |