| Grant Williams Tips 2020-2021 | Stats Glossary  |
| Games with 8 or more Efficiency recap | Boston Celtics Record : 11 - 10 | Grant Williams |
| No | Date | Game | Res | Score | Efficiency recap |
| 1 | May 28 | vs Brooklyn | W | 125-119 | 8 |
| 2 | May 16 | at New_York | L | 92-96 | 16 |
| 3 | May 15 | at Minnesota | W | 124-108 | 14 |
| 4 | May 11 | vs Miami | L | 121-129 | 10 |
| 5 | May 7 | at Chicago | L | 99-121 | 9 |
| 6 | Apr 30 | vs San_Antonio | W | 143-140 | 8 |
| 7 | Apr 25 | at Charlotte | L | 104-125 | 13 |
| 8 | Mar 27 | at Oklahoma_City | W | 111-94 | 11 |
| 9 | Mar 26 | at Milwaukee | W | 122-114 | 14 |
| 10 | Mar 24 | at Milwaukee | L | 119-121 | 11 |
| 11 | Mar 22 | at Memphis | L | 126-132 | 12 |
| 12 | Mar 4 | vs Toronto | W | 132-125 | 19 |
| 13 | Feb 9 | at Utah | L | 108-122 | 10 |
| 14 | Feb 7 | at Phoenix | L | 91-100 | 10 |
| 15 | Feb 5 | at L.A.Clippers | W | 119-115 | 14 |
| 16 | Feb 2 | at Golden_State | W | 111-107 | 18 |
| 17 | Jan 25 | at Chicago | W | 119-103 | 9 |
| 18 | Jan 6 | at Miami | W | 107-105 | 9 |
| 19 | Jan 4 | at Toronto | W | 126-114 | 16 |
| 20 | Jan 1 | at Detroit | L | 93-96 | 10 |
| 21 | Dec 25 | vs Brooklyn | L | 95-123 | 13 |
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