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 |
| 1976-77 | 23 | GSW | NBA | C | 77 | | 18.0 | 3.7 | 7.4 | .503 | | | | 3.7 | 7.4 | .503 | .503 | 1.6 | 2.2 | .708 | 2.6 | 4.4 | 7.1 | 1.0 | 0.7 | 1.2 | | 2.9 | 9.1 |
| 1977-78 | 24 | GSW | NBA | C | 82 | | 24.0 | 5.2 | 11.1 | .472 | | | | 5.2 | 11.1 | .472 | .472 | 2.0 | 3.2 | .625 | 2.6 | 5.7 | 8.3 | 1.2 | 1.0 | 1.5 | 2.5 | 3.5 | 12.5 |
| 1978-79 | 25 | GSW | NBA | C | 76 | | 31.7 | 7.3 | 14.6 | .499 | | | | 7.3 | 14.6 | .499 | .499 | 2.6 | 3.7 | .698 | 3.5 | 8.6 | 12.1 | 1.5 | 1.3 | 2.9 | 3.1 | 4.0 | 17.2 |
| 1979-80 | 26 | GSW | NBA | C | 72 | | 29.4 | 7.1 | 14.0 | .507 | 0.0 | 0.0 | .000 | 7.1 | 14.0 | .507 | .507 | 2.8 | 3.9 | .715 | 3.4 | 7.4 | 10.9 | 1.7 | 0.8 | 1.6 | 3.1 | 3.4 | 17.0 |
| 1980-81 | 27 | BOS | NBA | C | 82 | 78 | 28.0 | 7.7 | 14.2 | .545 | 0.0 | 0.0 | .000 | 7.7 | 14.2 | .545 | .545 | 3.4 | 4.8 | .710 | 3.0 | 6.5 | 9.5 | 1.8 | 1.0 | 2.6 | 2.3 | 3.8 | 18.9 |
| 1981-82 | 28 | BOS | NBA | C | 80 | 78 | 31.7 | 8.4 | 15.4 | .542 | 0.0 | 0.0 | | 8.4 | 15.4 | .542 | .542 | 3.2 | 4.4 | .710 | 3.6 | 7.2 | 10.8 | 1.8 | 0.9 | 2.4 | 2.8 | 3.3 | 19.9 |
| 1982-83 | 29 | BOS | NBA | C | 78 | 76 | 31.5 | 7.9 | 14.4 | .550 | 0.0 | 0.0 | .000 | 7.9 | 14.4 | .551 | .550 | 3.5 | 5.0 | .698 | 3.3 | 7.3 | 10.6 | 1.8 | 1.0 | 1.9 | 2.4 | 2.8 | 19.3 |
| 1983-84 | 30 | BOS | NBA | C | 80 | 79 | 35.8 | 7.8 | 14.3 | .546 | 0.0 | 0.0 | | 7.8 | 14.3 | .546 | .546 | 3.4 | 4.6 | .745 | 3.0 | 7.7 | 10.7 | 1.7 | 0.7 | 1.5 | 2.3 | 3.3 | 19.0 |
| 1984-85 | 31 | BOS | NBA | C | 79 | 78 | 36.1 | 7.0 | 12.9 | .542 | 0.0 | 0.0 | | 7.0 | 12.9 | .542 | .542 | 3.7 | 5.0 | .743 | 3.3 | 7.3 | 10.6 | 1.6 | 0.7 | 1.3 | 2.4 | 2.8 | 17.6 |
| 1985-86 | 32 | BOS | NBA | C | 81 | 80 | 31.7 | 6.5 | 11.9 | .549 | 0.0 | 0.0 | | 6.5 | 11.9 | .549 | .549 | 3.0 | 4.1 | .731 | 3.0 | 6.5 | 9.5 | 1.8 | 0.8 | 1.4 | 2.3 | 2.7 | 16.1 |
| 1986-87 | 33 | BOS | NBA | C | 80 | 80 | 37.4 | 7.4 | 13.2 | .556 | 0.0 | 0.0 | .000 | 7.4 | 13.2 | .557 | .556 | 2.8 | 3.9 | .735 | 3.2 | 7.5 | 10.6 | 2.2 | 0.8 | 1.8 | 2.4 | 3.3 | 17.5 |
| 1987-88 | 34 | BOS | NBA | C | 74 | 73 | 31.2 | 6.0 | 10.1 | .589 | 0.0 | 0.0 | .000 | 6.0 | 10.1 | .590 | .589 | 2.4 | 3.3 | .734 | 2.3 | 6.1 | 8.5 | 1.6 | 0.7 | 1.1 | 2.1 | 2.7 | 14.3 |
| 1988-89 | 35 | BOS | NBA | C | 80 | 80 | 35.5 | 7.5 | 13.1 | .570 | 0.0 | 0.0 | | 7.5 | 13.1 | .570 | .570 | 3.7 | 5.1 | .719 | 4.3 | 8.2 | 12.5 | 2.2 | 1.0 | 1.5 | 2.5 | 2.6 | 18.6 |
| 1989-90 | 36 | BOS | NBA | C | 79 | 78 | 30.3 | 6.4 | 11.0 | .580 | 0.0 | 0.0 | | 6.4 | 11.0 | .580 | .580 | 2.9 | 3.9 | .747 | 3.3 | 6.8 | 10.1 | 1.3 | 0.5 | 0.9 | 2.1 | 2.4 | 15.7 |
| 1990-91 | 37 | BOS | NBA | C | 81 | 81 | 30.1 | 6.0 | 10.0 | .598 | 0.0 | 0.0 | .000 | 6.0 | 10.0 | .599 | .598 | 2.9 | 3.8 | .767 | 3.3 | 7.2 | 10.6 | 0.8 | 0.8 | 1.3 | 1.9 | 2.4 | 14.9 |
| 1991-92 | 38 | BOS | NBA | C | 79 | 79 | 28.9 | 5.9 | 11.1 | .535 | 0.0 | 0.0 | | 5.9 | 11.1 | .535 | .535 | 2.3 | 2.9 | .772 | 2.8 | 6.2 | 8.9 | 0.9 | 0.9 | 1.2 | 1.7 | 2.2 | 14.1 |
| 1992-93 | 39 | BOS | NBA | C | 79 | 79 | 27.2 | 5.3 | 9.8 | .535 | 0.0 | 0.0 | | 5.3 | 9.8 | .535 | .535 | 2.1 | 3.0 | .689 | 3.1 | 6.3 | 9.4 | 0.8 | 0.7 | 1.4 | 1.5 | 2.5 | 12.6 |
| 1993-94 | 40 | BOS | NBA | C | 74 | 74 | 26.9 | 4.8 | 9.8 | .491 | 0.0 | 0.0 | | 4.8 | 9.8 | .491 | .491 | 2.1 | 2.8 | .740 | 1.9 | 5.4 | 7.3 | 1.1 | 0.6 | 1.3 | 1.5 | 2.6 | 11.7 |
| 1994-95 | 41 | CHH | NBA | C | 81 | 4 | 16.7 | 2.0 | 4.6 | .427 | 0.0 | 0.0 | | 2.0 | 4.6 | .427 | .427 | 0.9 | 1.2 | .703 | 1.1 | 3.2 | 4.3 | 0.5 | 0.3 | 0.4 | 0.8 | 1.6 | 4.8 |
| 1995-96 | 42 | CHH | NBA | C | 74 | 34 | 14.7 | 1.6 | 3.3 | .498 | 0.0 | 0.0 | | 1.6 | 3.3 | .498 | .498 | 0.7 | 1.0 | .704 | 1.2 | 2.9 | 4.1 | 0.4 | 0.3 | 0.7 | 0.7 | 1.1 | 3.9 |
| 1996-97 | 43 | CHI | NBA | C | 43 | 3 | 9.4 | 1.6 | 3.3 | .490 | 0.0 | 0.0 | | 1.6 | 3.3 | .490 | .490 | 0.5 | 0.7 | .677 | 1.0 | 1.1 | 2.1 | 0.5 | 0.1 | 0.4 | 0.7 | 0.9 | 3.7 |
| Career | | | NBA | | 1611 | 1134 | 28.4 | 6.0 | 11.1 | .537 | 0.0 | 0.0 | .000 | 6.0 | 11.1 | .537 | .537 | 2.5 | 3.5 | .721 | 2.9 | 6.3 | 9.1 | 1.4 | 0.8 | 1.5 | 2.1 | 2.8 | 14.5 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| 14 seasons | | BOS | NBA | | 1106 | 1093 | 31.6 | 6.8 | 12.3 | .552 | 0.0 | 0.0 | .000 | 6.8 | 12.3 | .552 | .552 | 3.0 | 4.1 | .730 | 3.1 | 6.9 | 10.0 | 1.5 | 0.8 | 1.5 | 2.2 | 2.8 | 16.5 |
| 4 seasons | | GSW | NBA | | 307 | | 25.7 | 5.8 | 11.7 | .495 | 0.0 | 0.0 | .000 | 5.8 | 11.7 | .495 | .495 | 2.2 | 3.3 | .685 | 3.0 | 6.5 | 9.5 | 1.3 | 1.0 | 1.8 | 2.9 | 3.5 | 13.8 |
| 2 seasons | | CHH | NBA | | 155 | 38 | 15.7 | 1.8 | 4.0 | .455 | 0.0 | 0.0 | | 1.8 | 4.0 | .455 | .455 | 0.8 | 1.1 | .703 | 1.2 | 3.0 | 4.2 | 0.5 | 0.3 | 0.6 | 0.7 | 1.4 | 4.4 |
| 1 season | | CHI | NBA | | 43 | 3 | 9.4 | 1.6 | 3.3 | .490 | 0.0 | 0.0 | | 1.6 | 3.3 | .490 | .490 | 0.5 | 0.7 | .677 | 1.0 | 1.1 | 2.1 | 0.5 | 0.1 | 0.4 | 0.7 | 0.9 | 3.7 |