| Robert Williams III Rankings 2020-2021 | Stats Glossary  |
| Games with 8 or more Points | Boston Celtics Record : 18 - 11 | Robert Williams III |
| No | Date | Game | Res | Score | Points |
| 1 | May 25 | at Brooklyn | L | 108-130 | 8 |
| 2 | May 22 | at Brooklyn | L | 93-104 | 11 |
| 3 | May 5 | at Orlando | W | 132-96 | 8 |
| 4 | Apr 30 | vs San_Antonio | W | 143-140 | 10 |
| 5 | Apr 13 | at Portland | W | 116-115 | 16 |
| 6 | Apr 11 | at Denver | W | 105-87 | 10 |
| 7 | Apr 4 | vs Charlotte | W | 116-86 | 16 |
| 8 | Apr 2 | vs Houston | W | 118-102 | 20 |
| 9 | Mar 27 | at Oklahoma_City | W | 111-94 | 9 |
| 10 | Mar 22 | at Memphis | L | 126-132 | 17 |
| 11 | Mar 19 | vs Sacramento | L | 96-107 | 12 |
| 12 | Mar 17 | at Cleveland | L | 110-117 | 13 |
| 13 | Mar 16 | vs Utah | L | 109-117 | 14 |
| 14 | Mar 14 | at Houston | W | 134-107 | 16 |
| 15 | Mar 4 | vs Toronto | W | 132-125 | 10 |
| 16 | Mar 2 | vs L.A.Clippers | W | 117-112 | 13 |
| 17 | Feb 26 | vs Indiana | W | 118-112 | 14 |
| 18 | Feb 21 | at New_Orleans | L | 115-120 | 8 |
| 19 | Feb 19 | vs Atlanta | W | 121-109 | 12 |
| 20 | Feb 17 | vs Atlanta | L | 114-122 | 8 |
| 21 | Feb 16 | vs Denver | W | 112-99 | 8 |
| 22 | Feb 5 | at L.A.Clippers | W | 119-115 | 10 |
| 23 | Feb 3 | at Sacramento | L | 111-116 | 9 |
| 24 | Jan 30 | vs L.A.Lakers | L | 95-96 | 10 |
| 25 | Jan 24 | vs Cleveland | W | 141-103 | 9 |
| 26 | Jan 6 | at Miami | W | 107-105 | 8 |
| 27 | Jan 4 | at Toronto | W | 126-114 | 11 |
| 28 | Dec 29 | at Indiana | W | 116-111 | 8 |
| 29 | Dec 27 | at Indiana | L | 107-108 | 12 |
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