| month | day | visitor | score | home | score |
|---|
| November | 2, 2019 | Celtics | 118 | Knicks | 106 |
| November | 5, 2019 | 76ers | 98 | Celtics | 118 |
| November | 6, 2019 | Celtics | 115 | Raptors | 118 |
| November | 7, 2019 | Celtics | 95 | Heat | 103 |
| November | 10, 2019 | Celtics | 107 | Nets | 129 |
| November | 13, 2019 | Grizzlies | 106 | Celtics | 100 |
| November | 14, 2019 | Raptors | 118 | Celtics | 125 |
| November | 18, 2019 | Rockets | 120 | Celtics | 113 |
| November | 22, 2019 | Kings | 112 | Celtics | 108 |
| November | 23, 2019 | Celtics | 107 | 76ers | 113 |
| November | 24, 2019 | Raptors | 117 | Celtics | 142 |
| November | 25, 2019 | Bulls | 103 | Celtics | 114 |
| November | 26, 2019 | Grizzlies | 115 | Celtics | 138 |
| November | 28, 2019 | Mavericks | 98 | Celtics | 100 |
| November | 29, 2019 | Bucks | 124 | Celtics | 121 |
| November | 30, 2019 | Celtics | 110 | Nets | 118 |
| December | 1, 2019 | Nets | 108 | Celtics | 135 |
| December | 8, 2019 | Celtics | 114 | Pelicans | 123 |
| December | 9, 2019 | Jazz | 92 | Celtics | 109 |
| December | 12, 2019 | Suns | 117 | Celtics | 125 |
| December | 13, 2019 | Nuggets | 89 | Celtics | 120 |
| December | 15, 2019 | Spurs | 95 | Celtics | 110 |
| December | 17, 2019 | Celtics | 123 | Bulls | 112 |
| December | 24, 2019 | Pelicans | 118 | Celtics | 128 |
| December | 26, 2019 | 76ers | 93 | Celtics | 114 |
| December | 28, 2019 | Knicks | 109 | Celtics | 105 |
| December | 31, 2019 | Lakers | 117 | Celtics | 89 |
| January | 1, 2020 | Grizzlies | 107 | Celtics | 128 |
| January | 2, 2020 | Celtics | 102 | Grizzlies | 87 |
| January | 4, 2020 | Wolves | 115 | Celtics | 122 |
| January | 5, 2020 | Pelicans | 139 | Celtics | 113 |
| January | 6, 2020 | 76ers | 94 | Celtics | 95 |
| January | 8, 2020 | Knicks | 94 | Celtics | 115 |
| January | 10, 2020 | Celtics | 95 | Heat | 118 |
| January | 22, 2020 | Celtics | 98 | 76ers | 102 |
| January | 24, 2020 | Celtics | 99 | Hawks | 102 |
| January | 27, 2020 | Celtics | 87 | Sonics | 113 |
| January | 28, 2020 | Celtics | 87 | Pacers | 102 |
| January | 30, 2020 | Celtics | 122 | Wolves | 105 |
| January | 31, 2020 | Celtics | 119 | Hawks | 117 |
| February | 2, 2020 | Heat | 79 | Celtics | 94 |
| February | 13, 2020 | Celtics | 114 | Pelicans | 125 |
| February | 17, 2020 | Celtics | 113 | Warriors | 104 |
| February | 19, 2020 | Celtics | 114 | Raptors | 97 |
| February | 21, 2020 | Celtics | 98 | Jazz | 113 |
| February | 22, 2020 | Nets | 128 | Celtics | 113 |
| February | 23, 2020 | Celtics | 110 | Blazers | 123 |
| February | 24, 2020 | Celtics | 118 | Pelicans | 110 |
| February | 25, 2020 | Celtics | 94 | Lakers | 125 |
| February | 26, 2020 | Clippers | 124 | Celtics | 112 |
| March | 1, 2020 | Bulls | 112 | Celtics | 120 |
| March | 2, 2020 | Hawks | 118 | Celtics | 125 |
| March | 3, 2020 | Warriors | 102 | Celtics | 116 |
| March | 4, 2020 | Celtics | 115 | Knicks | 122 |
| March | 7, 2020 | 76ers | 88 | Celtics | 86 |
| March | 9, 2020 | Celtics | 102 | Bulls | 95 |
| March | 10, 2020 | Bulls | 89 | Celtics | 116 |
| March | 12, 2020 | Bucks | 100 | Celtics | 104 |
| March | 16, 2020 | Pacers | 86 | Celtics | 80 |
| March | 17, 2020 | Celtics | 97 | Knicks | 95 |
| March | 18, 2020 | Celtics | 97 | Knicks | 75 |
| March | 19, 2020 | Heat | 97 | Celtics | 104 |
| March | 20, 2020 | Nets | 126 | Celtics | 115 |
| March | 21, 2020 | Celtics | 94 | Spurs | 105 |
| March | 22, 2020 | Celtics | 119 | Nuggets | 93 |
| March | 23, 2020 | Celtics | 85 | Suns | 105 |
| March | 25, 2020 | Celtics | 95 | Pacers | 97 |
| March | 26, 2020 | Pelicans | 91 | Celtics | 110 |
| March | 28, 2020 | Hawks | 92 | Celtics | 110 |
| March | 29, 2020 | Celtics | 90 | Kings | 93 |
| March | 30, 2020 | Celtics | 86 | Bucks | 108 |
| April | 6, 2020 | Sonics | 111 | Celtics | 101 |
| April | 7, 2020 | Celtics | 108 | Clippers | 97 |
| April | 10, 2020 | Celtics | 90 | Heat | 76 |
| April | 14, 2020 | Blazers | 102 | Celtics | 113 |
| April | 15, 2020 | Celtics | 97 | Bucks | 102 |
| April | 16, 2020 | Pacers | 87 | Celtics | 107 |
| April | 18, 2020 | Celtics | 93 | Heat | 95 |
| April | 20, 2020 | Celtics | 104 | Nets | 120 |
| April | 24, 2020 | Celtics | 112 | Mavericks | 114 |
| April | 25, 2020 | Celtics | 92 | Grizzlies | 104 |
| April | 26, 2020 | Celtics | 115 | Rockets | 120 |
| Post | 1, 2020 | Celtics | 107 | Nets | 110 |
| Post | 2, 2020 | Celtics | 80 | Nets | 103 |
| Post | 3, 2020 | Nets | 84 | Celtics | 120 |
| Post | 4, 2020 | Nets | 100 | Celtics | 118 |
| Post | 5, 2020 | Celtics | 95 | Nets | 85 |
| Post | 6, 2020 | Nets | 104 | Celtics | 106 |
| Post | 7, 2020 | Celtics | | Nets | |
| Post | 8, 2020 | Celtics | 111 | Bucks | 112 |
| Post | 9, 2020 | Celtics | 117 | Bucks | 120 |
| Post | 10, 2020 | Bucks | 116 | Celtics | 115 |
| Post | 11, 2020 | Bucks | 103 | Celtics | 131 |
| Post | 12, 2020 | Celtics | 124 | Bucks | 107 |
| Post | 13, 2020 | Bucks | 100 | Celtics | 104 |
| Post | 14, 2020 | Celtics | 97 | Bucks | 124 |