| month | day | visitor | score | home | score |
| November | 2, 1999 | Mavericks | 103 | Sonics | 104 |
| November | 3, 1999 | Lakers | 114 | Sonics | 102 |
| November | 4, 1999 | Lakers | 103 | Sonics | 97 |
| November | 6, 1999 | Sonics | 104 | Kings | 111 |
| November | 8, 1999 | Suns | 111 | Sonics | 119 |
| November | 9, 1999 | Blazers | 115 | Sonics | 108 |
| November | 10, 1999 | Jazz | 90 | Sonics | 99 |
| November | 11, 1999 | Lakers | 126 | Sonics | 108 |
| November | 12, 1999 | Sonics | 92 | Magic | 129 |
| November | 13, 1999 | Sonics | 96 | Nets | 85 |
| November | 14, 1999 | Wolves | 113 | Sonics | 125 |
| November | 15, 1999 | Bulls | 120 | Sonics | 110 |
| November | 20, 1999 | Sonics | 100 | Suns | 119 |
| November | 21, 1999 | Sonics | 112 | Spurs | 99 |
| November | 23, 1999 | Sonics | 99 | Grizzlies | 106 |
| November | 24, 1999 | Sonics | 97 | Clippers | 115 |
| November | 26, 1999 | Knicks | 119 | Sonics | 128 |
| November | 27, 1999 | Hawks | 130 | Sonics | 119 |
| November | 28, 1999 | Sonics | 96 | Rockets | 92 |
| November | 29, 1999 | Sonics | 117 | Pacers | 109 |
| December | 2, 1999 | Sonics | 98 | Hawks | 90 |
| December | 4, 1999 | Sonics | 107 | Jazz | 121 |
| December | 7, 1999 | Sonics | 102 | Kings | 110 |
| December | 9, 1999 | Wolves | 108 | Sonics | 115 |
| December | 10, 1999 | Bullets | 112 | Sonics | 120 |
| December | 11, 1999 | Hornets | 96 | Sonics | 118 |
| December | 12, 1999 | Sonics | 100 | Bucks | 96 |
| December | 14, 1999 | Blazers | 128 | Sonics | 119 |
| December | 17, 1999 | Sonics | 129 | 76ers | 112 |
| December | 19, 1999 | Pistons | 98 | Sonics | 86 |
| December | 22, 1999 | Magic | 113 | Sonics | 125 |
| December | 24, 1999 | Sonics | 132 | Suns | 101 |
| December | 25, 1999 | Nuggets | 99 | Sonics | 92 |
| January | 3, 2000 | Cavaliers | 103 | Sonics | 116 |
| January | 5, 2000 | Raptors | 92 | Sonics | 101 |
| January | 7, 2000 | Sonics | 101 | Rockets | 85 |
| January | 8, 2000 | Kings | 116 | Sonics | 122 |
| January | 10, 2000 | Grizzlies | 118 | Sonics | 134 |
| January | 11, 2000 | Rockets | 94 | Sonics | 121 |
| January | 13, 2000 | Sonics | 99 | Clippers | 119 |
| January | 15, 2000 | Clippers | 122 | Sonics | 94 |
| January | 18, 2000 | Sonics | 117 | Jazz | 104 |
| January | 19, 2000 | Sonics | 119 | Warriors | 111 |
| January | 22, 2000 | Warriors | 89 | Sonics | 108 |
| January | 25, 2000 | Nets | 101 | Sonics | 106 |
| January | 26, 2000 | Kings | 110 | Sonics | 121 |
| January | 28, 2000 | Kings | 106 | Sonics | 109 |
| January | 29, 2000 | Sonics | 109 | Wolves | 124 |
| January | 30, 2000 | Sonics | 122 | Warriors | 99 |
| January | 31, 2000 | Suns | 123 | Sonics | 118 |
| February | 2, 2000 | Sonics | 91 | Bullets | 85 |
| February | 4, 2000 | Sonics | 94 | Spurs | 111 |
| February | 8, 2000 | 76ers | 95 | Sonics | 109 |
| February | 9, 2000 | Sonics | 121 | Raptors | 108 |
| February | 10, 2000 | Sonics | 103 | Pistons | 111 |
| February | 11, 2000 | Blazers | 110 | Sonics | 104 |
| February | 14, 2000 | Sonics | 110 | Cavaliers | 102 |
| February | 15, 2000 | Celtics | 107 | Sonics | 116 |
| February | 20, 2000 | Sonics | 90 | Nuggets | 95 |
| February | 21, 2000 | Sonics | 102 | Knicks | 88 |
| February | 23, 2000 | Sonics | 121 | Mavericks | 98 |
| February | 25, 2000 | Sonics | 115 | Nuggets | 129 |
| February | 27, 2000 | Pacers | 102 | Sonics | 101 |
| March | 4, 2000 | Sonics | 100 | Lakers | 103 |
| March | 6, 2000 | Sonics | 107 | Lakers | 102 |
| March | 11, 2000 | Sonics | 111 | Celtics | 108 |
| March | 14, 2000 | Spurs | 90 | Sonics | 112 |
| March | 16, 2000 | Sonics | 116 | Warriors | 103 |
| March | 18, 2000 | Grizzlies | 112 | Sonics | 135 |
| March | 19, 2000 | Sonics | 103 | Suns | 99 |
| March | 27, 2000 | Clippers | 94 | Sonics | 118 |
| April | 1, 2000 | Sonics | 89 | Heat | 93 |
| April | 2, 2000 | Sonics | 122 | Mavericks | 127 |
| April | 3, 2000 | Sonics | 114 | Blazers | 110 |
| April | 4, 2000 | Bucks | 105 | Sonics | 106 |
| April | 13, 2000 | Heat | 76 | Sonics | 108 |
| April | 17, 2000 | Sonics | 124 | Bulls | 100 |
| April | 18, 2000 | Warriors | 96 | Sonics | 113 |
| April | 19, 2000 | Spurs | 87 | Sonics | 90 |
| April | 21, 2000 | Sonics | 95 | Hornets | 120 |
| April | 22, 2000 | Sonics | 118 | Blazers | 103 |
| April | 25, 2000 | Clippers | 75 | Sonics | 92 |
| Post | 1, 2000 | Sonics | 125 | Blazers | 122 |
| Post | 2, 2000 | Sonics | 93 | Blazers | 127 |
| Post | 3, 2000 | Blazers | 99 | Sonics | 128 |
| Post | 4, 2000 | Blazers | 116 | Sonics | 110 |
| Post | 5, 2000 | Sonics | 115 | Blazers | 108 |
| Post | 8, 2000 | Sonics | 86 | Kings | 92 |
| Post | 9, 2000 | Sonics | 82 | Kings | 94 |
| Post | 10, 2000 | Kings | 103 | Sonics | 97 |
| Post | 11, 2000 | Kings | 107 | Sonics | 97 |
| Post | 12, 2000 | Sonics | | Kings | |
| Post | 13, 2000 | Kings | | Sonics | |
| Post | 14, 2000 | Sonics | | Kings | |