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 |
| 1984-85 | 22 | UTA | NBA | PG | 82 | 5 | 18.2 | 1.9 | 4.1 | .471 | 0.0 | 0.1 | .182 | 1.9 | 3.9 | .481 | .474 | 1.7 | 2.4 | .736 | 0.3 | 1.0 | 1.3 | 5.1 | 1.3 | 0.1 | 1.8 | 2.5 | 5.6 |
| 1985-86 | 23 | UTA | NBA | PG | 82 | 38 | 23.6 | 2.8 | 5.7 | .489 | 0.0 | 0.2 | .133 | 2.8 | 5.5 | .501 | .491 | 2.1 | 2.5 | .839 | 0.4 | 1.8 | 2.2 | 7.4 | 1.9 | 0.1 | 2.0 | 2.8 | 7.7 |
| 1986-87 | 24 | UTA | NBA | PG | 82 | 2 | 22.7 | 2.8 | 5.6 | .499 | 0.1 | 0.5 | .179 | 2.7 | 5.2 | .528 | .506 | 2.2 | 2.8 | .782 | 0.4 | 1.5 | 1.8 | 8.2 | 2.2 | 0.2 | 2.0 | 2.7 | 7.9 |
| 1987-88 | 25 | UTA | NBA | PG | 82 | 79 | 34.7 | 5.5 | 9.6 | .574 | 0.3 | 0.8 | .358 | 5.2 | 8.8 | .594 | .589 | 3.3 | 4.0 | .840 | 0.7 | 2.2 | 2.9 | 13.8 | 3.0 | 0.2 | 3.2 | 3.0 | 14.7 |
| 1988-89 | 26 | UTA | NBA | PG | 82 | 82 | 38.7 | 6.1 | 11.3 | .538 | 0.2 | 0.8 | .242 | 5.9 | 10.5 | .561 | .547 | 4.8 | 5.5 | .863 | 1.0 | 2.0 | 3.0 | 13.6 | 3.2 | 0.2 | 3.8 | 2.9 | 17.1 |
| 1989-90 | 27 | UTA | NBA | PG | 78 | 78 | 37.4 | 6.1 | 11.8 | .514 | 0.6 | 1.4 | .416 | 5.4 | 10.3 | .528 | .540 | 4.5 | 5.5 | .819 | 0.7 | 1.9 | 2.6 | 14.5 | 2.7 | 0.2 | 3.5 | 3.0 | 17.2 |
| 1990-91 | 28 | UTA | NBA | PG | 82 | 82 | 37.8 | 6.0 | 11.9 | .507 | 0.7 | 2.0 | .345 | 5.3 | 9.9 | .541 | .537 | 4.4 | 5.3 | .836 | 0.6 | 2.3 | 2.9 | 14.2 | 2.9 | 0.2 | 3.6 | 2.8 | 17.2 |
| 1991-92 | 29 | UTA | NBA | PG | 82 | 82 | 36.6 | 5.5 | 11.5 | .482 | 1.0 | 2.5 | .407 | 4.5 | 9.0 | .503 | .527 | 3.8 | 4.5 | .842 | 0.8 | 2.5 | 3.3 | 13.7 | 3.0 | 0.3 | 3.5 | 2.9 | 15.8 |
| 1992-93 | 30 | UTA | NBA | PG | 82 | 82 | 34.9 | 5.3 | 11.0 | .486 | 0.9 | 2.3 | .385 | 4.5 | 8.7 | .513 | .526 | 3.6 | 4.5 | .798 | 0.8 | 2.1 | 2.9 | 12.0 | 2.4 | 0.3 | 3.2 | 2.7 | 15.1 |
| 1993-94 | 31 | UTA | NBA | PG | 82 | 82 | 36.2 | 5.6 | 10.6 | .528 | 0.6 | 1.8 | .322 | 5.0 | 8.8 | .570 | .555 | 3.3 | 4.1 | .805 | 0.9 | 2.3 | 3.1 | 12.6 | 2.4 | 0.3 | 3.2 | 2.9 | 15.1 |
| 1994-95 | 32 | UTA | NBA | PG | 82 | 82 | 35.0 | 5.2 | 9.6 | .542 | 1.2 | 2.8 | .449 | 4.0 | 6.9 | .580 | .607 | 3.0 | 3.7 | .804 | 0.7 | 2.4 | 3.1 | 12.3 | 2.4 | 0.3 | 3.3 | 2.6 | 14.7 |
| 1995-96 | 33 | UTA | NBA | PG | 82 | 82 | 35.5 | 5.4 | 10.0 | .538 | 1.2 | 2.7 | .422 | 4.2 | 7.2 | .582 | .596 | 2.9 | 3.4 | .830 | 0.7 | 2.1 | 2.8 | 11.2 | 1.7 | 0.2 | 3.0 | 2.5 | 14.7 |
| 1996-97 | 34 | UTA | NBA | PG | 82 | 82 | 35.3 | 5.1 | 9.3 | .548 | 0.9 | 2.2 | .422 | 4.1 | 7.1 | .587 | .598 | 3.4 | 4.0 | .846 | 0.5 | 2.2 | 2.8 | 10.5 | 2.0 | 0.2 | 3.0 | 2.4 | 14.4 |
| 1997-98 | 35 | UTA | NBA | PG | 64 | 64 | 29.0 | 4.2 | 8.0 | .528 | 0.6 | 1.4 | .429 | 3.6 | 6.6 | .550 | .567 | 3.0 | 3.6 | .827 | 0.5 | 2.0 | 2.6 | 8.5 | 1.4 | 0.2 | 2.5 | 2.2 | 12.0 |
| 1998-99 | 36 | UTA | NBA | PG | 50 | 50 | 28.2 | 4.0 | 8.2 | .488 | 0.3 | 1.0 | .320 | 3.7 | 7.2 | .511 | .507 | 2.7 | 3.4 | .811 | 0.6 | 2.3 | 2.9 | 7.5 | 1.6 | 0.3 | 2.2 | 2.1 | 11.1 |
| 1999-00 | 37 | UTA | NBA | PG | 82 | 82 | 29.7 | 4.4 | 8.8 | .501 | 0.5 | 1.5 | .355 | 3.9 | 7.4 | .530 | .530 | 2.7 | 3.1 | .860 | 0.5 | 2.1 | 2.6 | 8.6 | 1.7 | 0.2 | 2.2 | 2.3 | 12.1 |
| 2000-01 | 38 | UTA | NBA | PG | 82 | 82 | 29.2 | 4.0 | 7.9 | .504 | 0.7 | 1.6 | .462 | 3.3 | 6.3 | .514 | .551 | 2.8 | 3.4 | .817 | 0.7 | 2.1 | 2.8 | 8.7 | 1.6 | 0.3 | 2.5 | 2.4 | 11.5 |
| 2001-02 | 39 | UTA | NBA | PG | 82 | 82 | 31.3 | 4.9 | 9.5 | .517 | 0.3 | 1.0 | .321 | 4.6 | 8.5 | .539 | .534 | 3.4 | 3.9 | .857 | 0.7 | 2.5 | 3.2 | 8.2 | 1.9 | 0.3 | 2.5 | 2.5 | 13.4 |
| 2002-03 | 40 | UTA | NBA | PG | 82 | 82 | 27.7 | 3.8 | 7.8 | .483 | 0.4 | 1.0 | .363 | 3.4 | 6.8 | .500 | .505 | 2.9 | 3.5 | .826 | 0.6 | 1.8 | 2.5 | 7.7 | 1.7 | 0.2 | 2.2 | 2.2 | 10.8 |
| Career | | | NBA | | 1504 | 1300 | 31.8 | 4.7 | 9.1 | .515 | 0.6 | 1.5 | .384 | 4.1 | 7.6 | .541 | .546 | 3.2 | 3.9 | .826 | 0.6 | 2.1 | 2.7 | 10.5 | 2.2 | 0.2 | 2.8 | 2.6 | 13.1 |