| month | day | visitor | score | home | score |
|---|
| November | 3, 2026 | Celtics | 102 | Warriors | 100 |
| November | 4, 2026 | Celtics | 124 | Nets | 114 |
| November | 5, 2026 | Celtics | 97 | Nets | 112 |
| November | 7, 2026 | Bulls | 127 | Celtics | 101 |
| November | 10, 2026 | Wolves | 86 | Celtics | 119 |
| November | 13, 2026 | Celtics | 99 | Nets | 110 |
| November | 14, 2026 | Jazz | 101 | Celtics | 95 |
| November | 15, 2026 | Celtics | 88 | Jazz | 116 |
| November | 18, 2026 | 76ers | 98 | Celtics | 99 |
| November | 19, 2026 | Grizzlies | 111 | Celtics | 107 |
| November | 21, 2026 | Celtics | 104 | Bucks | 115 |
| November | 22, 2026 | Pacers | 99 | Celtics | 119 |
| November | 23, 2026 | Celtics | 86 | Pacers | 101 |
| November | 24, 2026 | Celtics | 99 | Sonics | 121 |
| November | 28, 2026 | Raptors | 100 | Celtics | 104 |
| November | 30, 2026 | Lakers | 101 | Celtics | 93 |
| December | 2, 2026 | Celtics | 87 | Pacers | 125 |
| December | 3, 2026 | Raptors | 100 | Celtics | 102 |
| December | 5, 2026 | Celtics | 102 | Knicks | 117 |
| December | 7, 2026 | Raptors | 132 | Celtics | 119 |
| December | 8, 2026 | Celtics | 102 | Bulls | 104 |
| December | 9, 2026 | Celtics | 113 | Knicks | 109 |
| December | 10, 2026 | Celtics | 115 | Rockets | 112 |
| December | 12, 2026 | Celtics | 98 | 76ers | 100 |
| December | 14, 2026 | Celtics | 94 | Grizzlies | 120 |
| December | 16, 2026 | Clippers | 79 | Celtics | 80 |
| December | 18, 2026 | Celtics | 108 | Bucks | 119 |
| December | 19, 2026 | Celtics | 91 | Bulls | 117 |
| December | 24, 2026 | Celtics | 106 | Heat | 80 |
| December | 25, 2026 | Celtics | 90 | Heat | 83 |
| December | 27, 2026 | Celtics | 87 | Suns | 116 |
| January | 1, 2027 | Pacers | 106 | Celtics | 85 |
| January | 2, 2027 | 76ers | 105 | Celtics | 104 |
| January | 3, 2027 | Heat | 86 | Celtics | 117 |
| January | 5, 2027 | Celtics | 96 | Bucks | 110 |
| January | 7, 2027 | Suns | 97 | Celtics | 81 |
| January | 8, 2027 | Pacers | 87 | Celtics | 105 |
| January | 12, 2027 | Celtics | 93 | Grizzlies | 127 |
| January | 13, 2027 | Pelicans | 116 | Celtics | 98 |
| January | 15, 2027 | Celtics | 108 | Raptors | 109 |
| January | 16, 2027 | Rockets | 91 | Celtics | 102 |
| January | 20, 2027 | 76ers | 89 | Celtics | 91 |
| January | 21, 2027 | Kings | 102 | Celtics | 97 |
| January | 27, 2027 | Grizzlies | 102 | Celtics | 108 |
| January | 28, 2027 | Nuggets | 77 | Celtics | 91 |
| January | 31, 2027 | Pacers | 78 | Celtics | 101 |
| February | 4, 2027 | Celtics | 111 | Pelicans | 121 |
| February | 7, 2027 | Celtics | 102 | Grizzlies | 121 |
| February | 10, 2027 | Warriors | 86 | Celtics | 114 |
| February | 12, 2027 | Celtics | 108 | Kings | 92 |
| February | 19, 2027 | Celtics | 92 | Knicks | 104 |
| February | 21, 2027 | Raptors | 102 | Celtics | 106 |
| February | 22, 2027 | Celtics | 94 | Raptors | 100 |
| February | 26, 2027 | Spurs | 94 | Celtics | 103 |
| February | 27, 2027 | Celtics | 112 | Pacers | 121 |
| March | 2, 2027 | Nets | 98 | Celtics | 109 |
| March | 10, 2027 | Bucks | 114 | Celtics | 106 |
| March | 16, 2027 | Celtics | 100 | Bulls | 106 |
| March | 18, 2027 | Celtics | 110 | Heat | 72 |
| March | 19, 2027 | Sonics | 87 | Celtics | 114 |
| March | 21, 2027 | Celtics | 105 | Raptors | 117 |
| March | 22, 2027 | Celtics | 101 | Pelicans | 111 |
| March | 25, 2027 | Celtics | 105 | Lakers | 93 |
| March | 28, 2027 | Celtics | 109 | Mavericks | 78 |
| April | 3, 2027 | Celtics | 95 | Bucks | 119 |
| April | 8, 2027 | Bulls | 92 | Celtics | 89 |
| April | 9, 2027 | Grizzlies | 102 | Celtics | 75 |
| April | 11, 2027 | Celtics | 128 | Nuggets | 104 |
| April | 14, 2027 | Celtics | 81 | Pelicans | 113 |
| April | 16, 2027 | Bucks | 103 | Celtics | 98 |
| April | 19, 2027 | Knicks | 110 | Celtics | 105 |
| April | 20, 2027 | Bucks | 110 | Celtics | 105 |
| April | 26, 2027 | Celtics | 105 | Clippers | 98 |
| May | 2, 2027 | Celtics | 106 | Spurs | 102 |
| May | 5, 2027 | Celtics | 110 | Wolves | 101 |
| May | 6, 2027 | Bulls | 99 | Celtics | 92 |
| May | 8, 2027 | Bulls | 98 | Celtics | 109 |
| May | 9, 2027 | Mavericks | 99 | Celtics | 105 |
| May | 10, 2027 | Nets | 93 | Celtics | 116 |
| May | 11, 2027 | Pelicans | 102 | Celtics | 110 |
| May | 13, 2027 | Bulls | 98 | Celtics | 99 |
| May | 14, 2027 | Grizzlies | 110 | Celtics | 116 |
| Post | 1, 2027 | Celtics | 105 | Pelicans | 121 |
| Post | 2, 2027 | Celtics | 74 | Pelicans | 91 |
| Post | 3, 2027 | Pelicans | 109 | Celtics | 91 |
| Post | 4, 2027 | Pelicans | 106 | Celtics | 101 |
| Post | 5, 2027 | Celtics | | Pelicans | |
| Post | 6, 2027 | Pelicans | | Celtics | |
| Post | 7, 2027 | Celtics | | Pelicans | |