| Grant Williams Rankings 2021-2022 | Stats Glossary  |
| Games with .361 or more 3-point Percentage | Boston Celtics Record : 30 - 18 | Grant Williams |
| No | Date | Game | Res | Score | 3-point Percentage |
| 1 | Jun 10 | vs Golden_State | L | 97-107 | .500 |
| 2 | Jun 5 | at Golden_State | L | 88-107 | 1.00 |
| 3 | May 21 | vs Miami | L | 103-109 | .500 |
| 4 | May 19 | at Miami | W | 127-102 | 1.00 |
| 5 | May 17 | at Miami | L | 107-118 | .500 |
| 6 | May 15 | vs Milwaukee | W | 109-81 | .389 |
| 7 | May 3 | vs Milwaukee | W | 109-86 | .667 |
| 8 | May 1 | vs Milwaukee | L | 89-101 | .500 |
| 9 | Apr 25 | at Brooklyn | W | 116-112 | .667 |
| 10 | Apr 20 | vs Brooklyn | W | 114-107 | 1.00 |
| 11 | Apr 6 | at Chicago | W | 117-94 | 1.00 |
| 12 | Apr 3 | vs Washington | W | 144-102 | .800 |
| 13 | Mar 20 | at Denver | W | 124-104 | .500 |
| 14 | Mar 18 | at Sacramento | W | 126-97 | .400 |
| 15 | Mar 16 | at Golden_State | W | 110-88 | 1.00 |
| 16 | Mar 3 | vs Memphis | W | 120-107 | 1.00 |
| 17 | Mar 1 | vs Atlanta | W | 107-98 | .500 |
| 18 | Feb 16 | vs Detroit | L | 111-112 | .571 |
| 19 | Feb 15 | at Philadelphia | W | 135-87 | .800 |
| 20 | Feb 11 | vs Denver | W | 108-102 | .667 |
| 21 | Feb 8 | at Brooklyn | W | 126-91 | .500 |
| 22 | Feb 6 | at Orlando | W | 116-83 | .500 |
| 23 | Feb 2 | vs Charlotte | W | 113-107 | .500 |
| 24 | Jan 31 | vs Miami | W | 122-92 | .400 |
| 25 | Jan 29 | at New_Orleans | W | 107-97 | .500 |
| 26 | Jan 25 | vs Sacramento | W | 128-75 | .667 |
| 27 | Jan 23 | at Washington | W | 116-87 | .667 |
| 28 | Jan 21 | vs Portland | L | 105-109 | .600 |
| 29 | Jan 19 | vs Charlotte | L | 102-111 | .400 |
| 30 | Jan 17 | vs New_Orleans | W | 104-92 | .400 |
| 31 | Jan 15 | vs Chicago | W | 114-112 | .500 |
| 32 | Jan 14 | at Philadelphia | L | 99-111 | .500 |
| 33 | Jan 8 | vs New_York | W | 99-75 | .400 |
| 34 | Dec 29 | vs L.A.Clippers | L | 82-91 | .667 |
| 35 | Dec 27 | at Minnesota | L | 103-108 | .600 |
| 36 | Dec 13 | vs Milwaukee | W | 117-103 | .714 |
| 37 | Dec 10 | at Phoenix | L | 90-111 | .667 |
| 38 | Dec 3 | at Utah | L | 130-137 | .667 |
| 39 | Dec 1 | vs Philadelphia | W | 88-87 | .500 |
| 40 | Nov 28 | at Toronto | W | 109-97 | .750 |
| 41 | Nov 26 | at San_Antonio | L | 88-96 | .500 |
| 42 | Nov 20 | vs Oklahoma_City | W | 111-105 | .667 |
| 43 | Nov 17 | at Atlanta | L | 99-110 | .375 |
| 44 | Nov 15 | at Cleveland | W | 98-92 | .500 |
| 45 | Nov 13 | at Cleveland | L | 89-91 | 1.00 |
| 46 | Oct 24 | at Houston | W | 107-97 | .714 |
| 47 | Oct 22 | vs Toronto | L | 83-115 | 1.00 |
| 48 | Oct 20 | at New_York | L | 134-138 | .600 |
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