| Celtics Games/Schedule |
| Oct. 28, 2008 | Round 1 (Regular Season ) | Cavaliers-Celtics | 85-90 |
| Oct. 31, 2008 | Round 4 (Regular Season ) | Bulls-Celtics | 80-96 |
| Nov. 1, 2008 | Round 5 (Regular Season ) | Celtics-Pacers | 79-95 |
| Nov. 4, 2008 | Round 8 (Regular Season ) | Celtics-Rockets | 103-99 |
| Nov. 5, 2008 | Round 9 (Regular Season ) | Celtics-Thunder | 96-83 |
| Nov. 7, 2008 | Round 11 (Regular Season ) | Bucks-Celtics | 89-101 |
| Nov. 9, 2008 | Round 13 (Regular Season ) | Celtics-Pistons | 88-76 |
| Nov. 10, 2008 | Round 14 (Regular Season ) | Raptors-Celtics | 87-94 |
| Nov. 12, 2008 | Round 16 (Regular Season ) | Hawks-Celtics | 102-103 |
| Nov. 14, 2008 | Round 18 (Regular Season ) | Nuggets-Celtics | 94-85 |
| Nov. 15, 2008 | Round 19 (Regular Season ) | Celtics-Bucks | 102-97 |
| Nov. 18, 2008 | Round 22 (Regular Season ) | Knicks-Celtics | 101-110 |
| Nov. 20, 2008 | Round 24 (Regular Season ) | Pistons-Celtics | 80-98 |
| Nov. 21, 2008 | Round 25 (Regular Season ) | Celtics-Timberwolves | 95-78 |
| Nov. 23, 2008 | Round 27 (Regular Season ) | Celtics-Raptors | 118-103 |
| Nov. 26, 2008 | Round 30 (Regular Season ) | Warriors-Celtics | 111-119 |
| Nov. 28, 2008 | Round 32 (Regular Season ) | 76ers-Celtics | 78-102 |
| Nov. 29, 2008 | Round 33 (Regular Season ) | Celtics-Bobcats | 89-84 |
| Dec. 1, 2008 | Round 35 (Regular Season ) | Magic-Celtics | 88-107 |
| Dec. 3, 2008 | Round 37 (Regular Season ) | Pacers-Celtics | 96-114 |
| Dec. 5, 2008 | Round 39 (Regular Season ) | Trail Blazers-Celtics | 78-93 |
| Dec. 7, 2008 | Round 41 (Regular Season ) | Celtics-Pacers | 122-117 |
| Dec. 11, 2008 | Round 45 (Regular Season ) | Celtics-Wizards | 122-88 |
| Dec. 12, 2008 | Round 46 (Regular Season ) | Hornets-Celtics | 82-94 |
| Dec. 15, 2008 | Round 49 (Regular Season ) | Jazz-Celtics | 91-100 |
| Dec. 17, 2008 | Round 51 (Regular Season ) | Celtics-Hawks | 88-85 |
| Dec. 19, 2008 | Round 53 (Regular Season ) | Bulls-Celtics | 108-126 |
| Dec. 21, 2008 | Round 55 (Regular Season ) | Knicks-Celtics | 105-124 |
| Dec. 23, 2008 | Round 57 (Regular Season ) | 76ers-Celtics | 91-110 |
| Dec. 25, 2008 | Round 58 (Regular Season ) | Celtics-Lakers | 83-92 |
| Dec. 26, 2008 | Round 59 (Regular Season ) | Celtics-Warriors | 89-99 |
| Dec. 28, 2008 | Round 61 (Regular Season ) | Celtics-Kings | 108-63 |
| Dec. 30, 2008 | Round 63 (Regular Season ) | Celtics-Trail Blazers | 86-91 |
| Jan. 2, 2009 | Round 65 (Regular Season ) | Wizards-Celtics | 83-108 |
| Jan. 4, 2009 | Round 67 (Regular Season ) | Celtics-Knicks | 88-100 |
| Jan. 6, 2009 | Round 69 (Regular Season ) | Celtics-Bobcats | 106-114 |
| Jan. 7, 2009 | Round 70 (Regular Season ) | Rockets-Celtics | 89-85 |
| Jan. 9, 2009 | Round 72 (Regular Season ) | Celtics-Cavaliers | 83-98 |
| Jan. 11, 2009 | Round 74 (Regular Season ) | Celtics-Raptors | 94-88 |
| Jan. 12, 2009 | Round 75 (Regular Season ) | Raptors-Celtics | 109-115 |
| Jan. 14, 2009 | Round 77 (Regular Season ) | Nets-Celtics | 86-118 |
| Jan. 17, 2009 | Round 80 (Regular Season ) | Celtics-Nets | 105-85 |
| Jan. 19, 2009 | Round 82 (Regular Season ) | Suns-Celtics | 87-104 |
| Jan. 21, 2009 | Round 84 (Regular Season ) | Celtics-Heat | 98-83 |
| Jan. 22, 2009 | Round 85 (Regular Season ) | Celtics-Magic | 90-80 |
| Jan. 25, 2009 | Round 88 (Regular Season ) | Mavericks-Celtics | 100-124 |
| Jan. 28, 2009 | Round 91 (Regular Season ) | Kings-Celtics | 100-119 |
| Jan. 30, 2009 | Round 93 (Regular Season ) | Celtics-Pistons | 86-78 |
| Feb. 1, 2009 | Round 95 (Regular Season ) | Timberwolves-Celtics | 101-109 |
| Feb. 3, 2009 | Round 97 (Regular Season ) | Celtics-76ers | 100-99 |
| Feb. 5, 2009 | Round 99 (Regular Season ) | Lakers-Celtics | 110-109 |
| Feb. 6, 2009 | Round 100 (Regular Season ) | Celtics-Knicks | 110-100 |
| Feb. 8, 2009 | Round 102 (Regular Season ) | Spurs-Celtics | 105-99 |
| Feb. 11, 2009 | Round 105 (Regular Season ) | Celtics-Hornets | 89-77 |
| Feb. 12, 2009 | Round 106 (Regular Season ) | Celtics-Mavericks | 99-92 |
| Feb. 19, 2009 | Round 109 (Regular Season ) | Celtics-Jazz | 85-90 |
| Feb. 22, 2009 | Round 112 (Regular Season ) | Celtics-Suns | 128-108 |
| Feb. 23, 2009 | Round 113 (Regular Season ) | Celtics-Nuggets | 114-76 |
| Feb. 25, 2009 | Round 115 (Regular Season ) | Celtics-Clippers | 91-93 |
| Feb. 27, 2009 | Round 117 (Regular Season ) | Pacers-Celtics | 99-104 |
| Mar. 1, 2009 | Round 119 (Regular Season ) | Pistons-Celtics | 105-95 |
| Mar. 4, 2009 | Round 122 (Regular Season ) | Celtics-Nets | 115-111 |
| Mar. 6, 2009 | Round 124 (Regular Season ) | Cavaliers-Celtics | 94-105 |
| Mar. 8, 2009 | Round 126 (Regular Season ) | Magic-Celtics | 86-79 |
| Feb. 11, 2009 | Round 129 (Regular Season ) | Celtics-Heat | 99-107 |
| Mar. 13, 2009 | Round 131 (Regular Season ) | Grizzlies-Celtics | 92-102 |
| Mar. 15, 2009 | Round 133 (Regular Season ) | Celtics-Bucks | 77-86 |
| Mar. 17, 2009 | Round 135 (Regular Season ) | Celtics-Bulls | 121-127 |
| Mar. 18, 2009 | Round 136 (Regular Season ) | Heat-Celtics | 108-112 |
| Mar. 20, 2009 | Round 138 (Regular Season ) | Celtics-Spurs | 80-77 |
| Mar. 21, 2009 | Round 139 (Regular Season ) | Celtics-Grizzlies | 105-87 |
| Mar. 25, 2009 | Round 143 (Regular Season ) | Celtics-Magic | 82-84 |
| Mar. 27, 2009 | Round 145 (Regular Season ) | Celtics-Hawks | 99-93 |
| Mar. 29, 2009 | Round 147 (Regular Season ) | Thunder-Celtics | 84-103 |
| Apr. 1, 2009 | Round 150 (Regular Season ) | Bobcats-Celtics | 109-111 |
| Apr. 3, 2009 | Round 152 (Regular Season ) | Hawks-Celtics | 92-104 |
| Apr. 8, 2009 | Round 156 (Regular Season ) | Nets-Celtics | 104-106 |
| Apr. 10, 2009 | Round 158 (Regular Season ) | Heat-Celtics | 98-105 |
| Apr. 12, 2009 | Round 160 (Regular Season ) | Celtics-Cavaliers | 76-107 |
| Apr. 14, 2009 | Round 162 (Regular Season ) | Celtics-76ers | 100-98 |
| Apr. 15, 2009 | Round 163 (Regular Season ) | Wizards-Celtics | 107-115 |
| Apr. 18, 2009 | Round 1 (1/8 Finals ) | Bulls-Celtics | 105-103 |
| Apr. 20, 2009 | Round 2 (1/8 Finals ) | Bulls-Celtics | 115-118 |
| Apr. 23, 2009 | Round 3 (1/8 Finals ) | Celtics-Bulls | 107-86 |
| Apr. 26, 2009 | Round 4 (1/8 Finals ) | Celtics-Bulls | 118-121 2OT |
| Apr. 28, 2009 | Round 5 (1/8 Finals ) | Bulls-Celtics | 104-106 |
| Apr. 30, 2009 | Round 6 (1/8 Finals ) | Celtics-Bulls | 127-128 |
| May. 2, 2009 | Round 7 (1/8 Finals ) | Bulls-Celtics | 99-109 |
| May. 4, 2009 | Round 1 (Quarter-Finals ) | Magic-Celtics | 95-90 |
| May. 6, 2009 | Round 2 (Quarter-Finals ) | Magic-Celtics | 94-112 |
| May. 8, 2009 | Round 3 (Quarter-Finals ) | Celtics-Magic | 96-117 |
| May. 10, 2009 | Round 4 (Quarter-Finals ) | Celtics-Magic | 95-94 |
| May. 12, 2009 | Round 5 (Quarter-Finals ) | Magic-Celtics | 88-92 |
| May. 14, 2009 | Round 6 (Quarter-Finals ) | Celtics-Magic | 75-83 |
| May. 17, 2009 | Round 7 (Quarter-Finals ) | Magic-Celtics | 101-82 |
