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 |
| 1978-79 | 22 | PHI | NBA | PG | 82 | | 29.4 | 3.6 | 7.0 | .510 | | | | 3.6 | 7.0 | .510 | .510 | 1.2 | 1.7 | .721 | 0.8 | 2.3 | 3.1 | 5.3 | 2.1 | 0.1 | 2.4 | 2.4 | 8.4 |
| 1979-80 | 23 | PHI | NBA | PG | 79 | | 33.2 | 4.5 | 8.4 | .540 | 0.1 | 0.1 | .444 | 4.5 | 8.3 | .541 | .543 | 2.3 | 2.9 | .779 | 0.9 | 2.5 | 3.5 | 7.0 | 2.3 | 0.4 | 2.7 | 2.5 | 11.4 |
| 1980-81 | 24 | PHI | NBA | PG | 81 | | 29.8 | 3.8 | 7.2 | .534 | 0.0 | 0.1 | .375 | 3.8 | 7.1 | .536 | .536 | 1.7 | 2.2 | .787 | 0.8 | 2.2 | 3.0 | 6.9 | 2.4 | 0.5 | 2.1 | 2.9 | 9.4 |
| 1981-82 | 25 | PHI | NBA | PG | 79 | 79 | 31.6 | 4.5 | 8.6 | .521 | 0.1 | 0.3 | .273 | 4.4 | 8.3 | .529 | .525 | 2.2 | 2.8 | .777 | 0.6 | 2.5 | 3.1 | 8.4 | 2.6 | 0.4 | 2.3 | 3.1 | 11.2 |
| 1982-83 | 26 | PHI | NBA | PG | 79 | 79 | 31.2 | 5.1 | 9.4 | .542 | 0.0 | 0.1 | .167 | 5.1 | 9.4 | .545 | .543 | 2.3 | 3.0 | .754 | 0.7 | 2.0 | 2.6 | 6.9 | 2.3 | 0.4 | 2.3 | 2.3 | 12.5 |
| 1983-84 | 27 | PHI | NBA | PG | 75 | 75 | 33.3 | 5.1 | 9.4 | .550 | 0.1 | 0.3 | .400 | 5.0 | 9.1 | .554 | .556 | 2.3 | 3.1 | .733 | 0.6 | 2.1 | 2.7 | 6.4 | 2.3 | 0.3 | 2.4 | 2.6 | 12.7 |
| 1984-85 | 28 | PHI | NBA | PG | 78 | 78 | 33.5 | 5.4 | 9.5 | .570 | 0.1 | 0.3 | .231 | 5.3 | 9.2 | .582 | .574 | 2.2 | 2.6 | .879 | 0.7 | 2.1 | 2.8 | 6.4 | 2.2 | 0.3 | 2.0 | 2.4 | 13.1 |
| 1985-86 | 29 | PHI | NBA | PG | 82 | 82 | 39.9 | 6.0 | 11.1 | .537 | 0.0 | 0.2 | .235 | 5.9 | 10.9 | .542 | .539 | 3.4 | 4.1 | .842 | 0.7 | 2.2 | 2.9 | 9.2 | 2.5 | 0.3 | 2.9 | 2.0 | 15.4 |
| 1986-87 | 30 | PHI | NBA | PG | 68 | 68 | 38.6 | 6.1 | 11.6 | .527 | 0.1 | 0.3 | .235 | 6.0 | 11.3 | .533 | .529 | 3.3 | 4.3 | .777 | 0.7 | 2.5 | 3.2 | 7.9 | 2.6 | 0.2 | 2.5 | 1.6 | 15.6 |
| 1987-88 | 31 | PHI | NBA | PG | 79 | 79 | 36.3 | 5.4 | 10.9 | .495 | 0.0 | 0.3 | .136 | 5.4 | 10.7 | .504 | .497 | 2.9 | 3.5 | .825 | 0.7 | 2.5 | 3.2 | 8.0 | 2.1 | 0.3 | 2.0 | 1.5 | 13.7 |
| 1988-89 | 32 | PHI | NBA | PG | 71 | 70 | 32.4 | 4.7 | 9.8 | .483 | 0.0 | 0.2 | .077 | 4.7 | 9.6 | .490 | .483 | 2.1 | 2.7 | .774 | 0.5 | 2.0 | 2.6 | 7.8 | 1.5 | 0.2 | 1.6 | 1.6 | 11.6 |
| 1989-90 | 33 | TOT | NBA | PG | 81 | 62 | 31.1 | 3.8 | 7.5 | .504 | 0.0 | 0.2 | .250 | 3.7 | 7.3 | .511 | .507 | 2.1 | 2.5 | .847 | 0.6 | 2.3 | 3.0 | 5.6 | 1.5 | 0.1 | 1.5 | 1.0 | 9.7 |
| 1989-90 | 33 | SAS | NBA | PG | 50 | 49 | 35.3 | 4.3 | 9.0 | .478 | 0.0 | 0.2 | .111 | 4.3 | 8.8 | .485 | .479 | 2.3 | 2.7 | .832 | 0.8 | 2.6 | 3.3 | 6.0 | 1.6 | 0.1 | 1.7 | 0.9 | 10.9 |
| 1989-90 | 33 | NYK | NBA | PG | 31 | 13 | 24.3 | 3.0 | 5.1 | .579 | 0.1 | 0.2 | .429 | 2.9 | 4.9 | .586 | .588 | 1.8 | 2.1 | .877 | 0.4 | 2.0 | 2.4 | 4.9 | 1.4 | 0.2 | 1.2 | 1.0 | 7.9 |
| 1990-91 | 34 | NYK | NBA | PG | 76 | 64 | 28.3 | 3.2 | 6.4 | .499 | 0.1 | 0.3 | .250 | 3.1 | 6.1 | .510 | .504 | 1.4 | 1.7 | .814 | 0.3 | 2.0 | 2.3 | 5.7 | 1.7 | 0.1 | 1.4 | 1.8 | 7.8 |
| 1991-92 | 35 | ATL | NBA | PG | 56 | 0 | 19.4 | 2.1 | 4.4 | .462 | 0.1 | 0.1 | .500 | 2.0 | 4.3 | .461 | .468 | 0.5 | 0.8 | .605 | 0.5 | 1.2 | 1.7 | 3.3 | 1.5 | 0.0 | 0.6 | 1.3 | 4.6 |
| 1992-93 | 36 | NJN | NBA | PG | 35 | 0 | 14.6 | 1.5 | 2.7 | .548 | 0.0 | 0.1 | .000 | 1.5 | 2.6 | .560 | .548 | 0.7 | 0.8 | .889 | 0.1 | 1.1 | 1.2 | 3.1 | 0.9 | 0.1 | 0.9 | 1.0 | 3.6 |
| Career | | | NBA | | 1101 | 736 | 31.6 | 4.5 | 8.5 | .523 | 0.1 | 0.2 | .255 | 4.4 | 8.3 | .529 | .526 | 2.1 | 2.7 | .793 | 0.6 | 2.2 | 2.8 | 6.7 | 2.1 | 0.3 | 2.1 | 2.1 | 11.1 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| 11 seasons | | PHI | NBA | | 853 | 610 | 33.5 | 4.9 | 9.3 | .528 | 0.1 | 0.2 | .250 | 4.9 | 9.1 | .534 | .530 | 2.4 | 3.0 | .790 | 0.7 | 2.3 | 3.0 | 7.3 | 2.3 | 0.3 | 2.3 | 2.3 | 12.2 |
| 2 seasons | | NYK | NBA | | 107 | 77 | 27.1 | 3.1 | 6.0 | .519 | 0.1 | 0.3 | .296 | 3.0 | 5.7 | .528 | .525 | 1.5 | 1.8 | .835 | 0.3 | 2.0 | 2.3 | 5.5 | 1.6 | 0.1 | 1.3 | 1.6 | 7.8 |
| 1 season | | ATL | NBA | | 56 | 0 | 19.4 | 2.1 | 4.4 | .462 | 0.1 | 0.1 | .500 | 2.0 | 4.3 | .461 | .468 | 0.5 | 0.8 | .605 | 0.5 | 1.2 | 1.7 | 3.3 | 1.5 | 0.0 | 0.6 | 1.3 | 4.6 |
| 1 season | | SAS | NBA | | 50 | 49 | 35.3 | 4.3 | 9.0 | .478 | 0.0 | 0.2 | .111 | 4.3 | 8.8 | .485 | .479 | 2.3 | 2.7 | .832 | 0.8 | 2.6 | 3.3 | 6.0 | 1.6 | 0.1 | 1.7 | 0.9 | 10.9 |
| 1 season | | NJN | NBA | | 35 | 0 | 14.6 | 1.5 | 2.7 | .548 | 0.0 | 0.1 | .000 | 1.5 | 2.6 | .560 | .548 | 0.7 | 0.8 | .889 | 0.1 | 1.1 | 1.2 | 3.1 | 0.9 | 0.1 | 0.9 | 1.0 | 3.6 |