| Boston Celtics Bench Rankings 2020-2021 | Stats Glossary  |
| Games with 12 or more Defensive Rebounds | Boston Celtics Record : 19 - 19 |
| No | Date | Game | Score | Defensive Rebounds |
| 1 | May 25 | at Brooklyn | L | 108-130 | 17 |
| 2 | May 22 | at Brooklyn | L | 93-104 | 12 |
| 3 | May 18 | vs Washington | W | 118-100 | 13 |
| 4 | May 16 | at New_York | L | 92-96 | 19 |
| 5 | May 15 | at Minnesota | W | 124-108 | 13 |
| 6 | May 12 | at Cleveland | L | 94-102 | 13 |
| 7 | May 9 | vs Miami | L | 124-130 | 15 |
| 8 | May 5 | at Orlando | W | 132-96 | 18 |
| 9 | May 2 | vs Portland | L | 119-129 | 12 |
| 10 | Apr 30 | vs San_Antonio | W | 143-140 | 13 |
| 11 | Apr 28 | vs Charlotte | W | 120-111 | 13 |
| 12 | Apr 27 | vs Oklahoma_City | L | 115-119 | 12 |
| 13 | Apr 23 | at Brooklyn | L | 104-109 | 21 |
| 14 | Apr 22 | vs Phoenix | W | 99-86 | 12 |
| 15 | Apr 19 | vs Chicago | L | 96-102 | 12 |
| 16 | Apr 15 | at L.A.Lakers | W | 121-113 | 15 |
| 17 | Apr 11 | at Denver | W | 105-87 | 14 |
| 18 | Apr 4 | vs Charlotte | W | 116-86 | 14 |
| 19 | Mar 27 | at Oklahoma_City | W | 111-94 | 17 |
| 20 | Mar 22 | at Memphis | L | 126-132 | 12 |
| 21 | Mar 21 | vs Orlando | W | 112-96 | 14 |
| 22 | Mar 17 | at Cleveland | L | 110-117 | 12 |
| 23 | Mar 16 | vs Utah | L | 109-117 | 12 |
| 24 | Mar 14 | at Houston | W | 134-107 | 24 |
| 25 | Feb 14 | at Washington | L | 91-104 | 15 |
| 26 | Feb 11 | vs Toronto | W | 120-106 | 12 |
| 27 | Feb 7 | at Phoenix | L | 91-100 | 15 |
| 28 | Feb 3 | at Sacramento | L | 111-116 | 12 |
| 29 | Jan 30 | vs L.A.Lakers | L | 95-96 | 12 |
| 30 | Jan 27 | at San_Antonio | L | 106-110 | 15 |
| 31 | Jan 25 | at Chicago | W | 119-103 | 13 |
| 32 | Jan 24 | vs Cleveland | W | 141-103 | 20 |
| 33 | Jan 20 | at Philadelphia | L | 109-117 | 15 |
| 34 | Jan 17 | vs New_York | L | 75-105 | 19 |
| 35 | Jan 15 | vs Orlando | W | 124-97 | 23 |
| 36 | Jan 4 | at Toronto | W | 126-114 | 24 |
| 37 | Dec 30 | vs Memphis | W | 126-107 | 14 |
| 38 | Dec 29 | at Indiana | W | 116-111 | 12 |
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