Joe Harris averaged 7.8 points, 3.1 rebounds and 0.9 assists in 29 games in the playoffs in his career.
| NAME | SEASON | TM | GP | MPG | PPG | RPG | APG | SPG | BPG | FGM | FGA | FG% | 3PM | 3PA | 3P% | FTM | FTA | FT% | TS% | OREB | DREB | TPG | MIN | PTS | REB | AST | STL | BLK | TOV | PF | +/- | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | J. Harris | 2014-15 |  CLE | 6 | 2.7 | 1.3 | 0.2 | 0.2 | 0.0 | 0.0 | 0.3 | 1.0 | 33.3 | 0.2 | 0.5 | 33.3 | 0.5 | 0.7 | 75.0 | 51.5 | 0.0 | 0.2 | 0.2 | 16 | 8 | 1 | 1 | 0 | 0 | 1 | 1 | -8 |
| 2 |  | J. Harris | 2018-19 |  BKN | 5 | 29.8 | 8.8 | 4.2 | 0.6 | 0.6 | 0.0 | 3.2 | 8.6 | 37.2 | 0.8 | 4.2 | 19.0 | 1.6 | 1.6 | 100.0 | 47.3 | 1.2 | 3.0 | 1.8 | 149 | 44 | 21 | 3 | 3 | 0 | 9 | 12 | -79 |
| 3 | | J. Harris | 2019-20 | BKN | 2 | 36.0 | 16.5 | 10.0 | 1.0 | 0.5 | 0.0 | 6.0 | 11.5 | 52.2 | 3.5 | 6.0 | 58.3 | 1.0 | 2.0 | 50.0 | 66.6 | 1.0 | 9.0 | 1.5 | 72 | 33 | 20 | 2 | 1 | 0 | 3 | 9 | -3 |
| 4 | | J. Harris | 2020-21 | BKN | 12 | 36.2 | 11.2 | 3.6 | 1.6 | 0.3 | 0.2 | 4.1 | 10.3 | 39.8 | 2.8 | 6.8 | 40.2 | 0.3 | 0.3 | 75.0 | 53.7 | 0.4 | 3.2 | 0.8 | 434 | 134 | 43 | 19 | 4 | 2 | 9 | 34 | +50 |
| 5 | | J. Harris | 2022-23 | BKN | 4 | 11.0 | 1.8 | 1.3 | 0.0 | 0.5 | 0.0 | 0.5 | 3.3 | 15.4 | 0.3 | 3.0 | 8.3 | 0.5 | 0.5 | 100.0 | 25.2 | 0.0 | 1.3 | 0.8 | 44 | 7 | 5 | 0 | 2 | 0 | 3 | 5 | +15 |
| Average | 5.8 | 24.7 | 7.8 | 3.1 | 0.9 | 0.3 | 0.1 | 2.8 | 7.2 | 38.9 | 1.6 | 4.5 | 35.4 | 0.6 | 0.8 | 81.8 | 51.9 | 0.4 | 2.7 | 0.9 | 143.0 | 45.2 | 18.0 | 5.0 | 2.0 | 0.4 | 5.0 | 12.2 | -5.0 | ||||
| Total | 29 | 24.7 | 7.8 | 3.1 | 0.9 | 0.3 | 0.1 | 2.8 | 7.2 | 38.9 | 1.6 | 4.5 | 35.4 | 0.6 | 0.8 | 81.8 | 51.9 | 0.4 | 2.7 | 0.9 | 715 | 226 | 90 | 25 | 10 | 2 | 25 | 61 | -25 |
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