Per Game Table | Season | Age | Tm | Lg | Pos | G | GS | MP | FG | FGA | FG% | 3P | 3PA | 3P% | 2P | 2PA | 2P% | eFG% | FT | FTA | FT% | ORB | DRB | TRB | AST | STL | BLK | TOV | PF | PTS |
| 2011-12 | 19 | CLE | NBA | PG | 51 | 51 | 30.5 | 6.9 | 14.6 | .469 | 1.4 | 3.6 | .399 | 5.4 | 11.1 | .491 | .517 | 3.4 | 3.8 | .872 | 0.9 | 2.9 | 3.7 | 5.4 | 1.1 | 0.4 | 3.1 | 2.2 | 18.5 |
| 2012-13 | 20 | CLE | NBA | PG | 59 | 59 | 34.7 | 8.2 | 18.1 | .452 | 1.8 | 4.7 | .391 | 6.4 | 13.4 | .474 | .503 | 4.2 | 4.9 | .855 | 0.6 | 3.1 | 3.7 | 5.9 | 1.5 | 0.4 | 3.2 | 2.5 | 22.5 |
| 2013-14 | 21 | CLE | NBA | PG | 71 | 71 | 35.2 | 7.5 | 17.4 | .430 | 1.7 | 4.8 | .358 | 5.8 | 12.6 | .458 | .480 | 4.1 | 4.8 | .861 | 0.7 | 2.9 | 3.6 | 6.1 | 1.5 | 0.3 | 2.7 | 2.3 | 20.8 |
| 2014-15 | 22 | CLE | NBA | PG | 75 | 75 | 36.4 | 7.7 | 16.5 | .468 | 2.1 | 5.0 | .415 | 5.6 | 11.4 | .491 | .532 | 4.2 | 4.9 | .863 | 0.7 | 2.4 | 3.2 | 5.2 | 1.5 | 0.3 | 2.5 | 1.9 | 21.7 |
| 2015-16 | 23 | CLE | NBA | PG | 53 | 53 | 31.5 | 7.4 | 16.6 | .448 | 1.6 | 4.9 | .321 | 5.8 | 11.6 | .502 | .496 | 3.2 | 3.6 | .885 | 0.8 | 2.1 | 3.0 | 4.7 | 1.1 | 0.3 | 2.3 | 2.0 | 19.6 |
| 2016-17 | 24 | CLE | NBA | PG | 72 | 72 | 35.1 | 9.3 | 19.7 | .473 | 2.5 | 6.1 | .401 | 6.9 | 13.6 | .505 | .535 | 4.1 | 4.6 | .905 | 0.7 | 2.5 | 3.2 | 5.8 | 1.2 | 0.3 | 2.5 | 2.2 | 25.2 |
| 2017-18 | 25 | BOS | NBA | PG | 60 | 60 | 32.2 | 8.9 | 18.1 | .491 | 2.8 | 6.8 | .408 | 6.1 | 11.3 | .541 | .568 | 3.9 | 4.4 | .889 | 0.6 | 3.2 | 3.8 | 5.1 | 1.1 | 0.3 | 2.3 | 2.0 | 24.4 |
| 2018-19 | 26 | BOS | NBA | PG | 67 | 67 | 33.0 | 9.0 | 18.5 | .487 | 2.6 | 6.5 | .401 | 6.4 | 12.0 | .533 | .557 | 3.2 | 3.7 | .873 | 1.1 | 3.9 | 5.0 | 6.9 | 1.5 | 0.5 | 2.6 | 2.5 | 23.8 |
| 2019-20 | 27 | BRK | NBA | PG | 20 | 20 | 32.9 | 10.0 | 20.8 | .478 | 2.8 | 7.1 | .394 | 7.2 | 13.7 | .522 | .546 | 4.7 | 5.1 | .922 | 1.1 | 4.1 | 5.2 | 6.4 | 1.4 | 0.5 | 2.6 | 2.7 | 27.4 |
| Career | | | NBA | | 528 | 528 | 33.8 | 8.2 | 17.7 | .466 | 2.1 | 5.4 | .390 | 6.1 | 12.2 | .499 | .526 | 3.8 | 4.4 | .877 | 0.8 | 2.9 | 3.7 | 5.7 | 1.3 | 0.4 | 2.6 | 2.2 | 22.4 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| 6 seasons | | CLE | NBA | | 381 | 381 | 34.2 | 7.9 | 17.3 | .457 | 1.9 | 5.0 | .383 | 6.0 | 12.3 | .486 | .512 | 3.9 | 4.5 | .873 | 0.7 | 2.6 | 3.4 | 5.5 | 1.3 | 0.3 | 2.7 | 2.2 | 21.6 |
| 2 seasons | | BOS | NBA | | 127 | 127 | 32.6 | 9.0 | 18.3 | .489 | 2.7 | 6.6 | .404 | 6.3 | 11.7 | .537 | .562 | 3.5 | 4.0 | .881 | 0.8 | 3.6 | 4.4 | 6.1 | 1.3 | 0.4 | 2.5 | 2.3 | 24.1 |
| 1 season | | BRK | NBA | | 20 | 20 | 32.9 | 10.0 | 20.8 | .478 | 2.8 | 7.1 | .394 | 7.2 | 13.7 | .522 | .546 | 4.7 | 5.1 | .922 | 1.1 | 4.1 | 5.2 | 6.4 | 1.4 | 0.5 | 2.6 | 2.7 | 27.4 |