| J.J. Barea Rankings 2019-2020 | Stats Glossary  |
| Games with 8 or more Efficiency Recap | Dallas Mavericks Record : 7 - 7 | J.J. Barea |
| No | Date | Game | Res | Score | Efficiency Recap |
| 1 | Aug 10 | at Utah | W | 122-114 | 20 |
| 2 | Feb 24 | vs Minnesota | W | 139-123 | 15 |
| 3 | Feb 22 | at Atlanta | L | 107-111 | 9 |
| 4 | Feb 10 | vs Utah | L | 119-123 | 15 |
| 5 | Jan 31 | at Houston | L | 121-128 | 17 |
| 6 | Jan 28 | vs Phoenix | L | 104-133 | 18 |
| 7 | Jan 14 | at Golden_State | W | 124-97 | 12 |
| 8 | Jan 4 | vs Charlotte | L | 120-123 | 15 |
| 9 | Jan 2 | vs Brooklyn | W | 123-111 | 11 |
| 10 | Dec 14 | vs Miami | L | 118-122 | 13 |
| 11 | Dec 3 | at New_Orleans | W | 118-97 | 12 |
| 12 | Nov 26 | vs L.A.Clippers | L | 99-114 | 10 |
| 13 | Nov 22 | vs Cleveland | W | 143-101 | 12 |
| 14 | Nov 6 | vs Orlando | W | 107-106 | 10 |
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