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 |
| 1977-78 | 22 | SEA | NBA | C | 82 | | 27.3 | 4.2 | 9.2 | .455 | | | | 4.2 | 9.2 | .455 | .455 | 2.3 | 3.0 | .777 | 2.4 | 5.9 | 8.3 | 1.6 | 0.8 | 0.5 | 2.3 | 3.7 | 10.7 |
| 1978-79 | 23 | SEA | NBA | C | 82 | | 36.1 | 5.8 | 12.6 | .460 | | | | 5.8 | 12.6 | .460 | .460 | 4.0 | 4.9 | .814 | 2.8 | 9.5 | 12.4 | 3.2 | 1.0 | 0.8 | 3.1 | 3.6 | 15.6 |
| 1979-80 | 24 | SEA | NBA | C | 82 | | 34.1 | 5.7 | 12.1 | .475 | 0.0 | 0.0 | .000 | 5.7 | 12.0 | .476 | .475 | 2.9 | 3.6 | .805 | 2.4 | 8.7 | 11.1 | 3.4 | 0.8 | 0.9 | 2.5 | 2.8 | 14.3 |
| 1980-81 | 25 | SEA | NBA | C | 82 | | 35.6 | 7.3 | 16.0 | .454 | 0.0 | 0.1 | .000 | 7.3 | 15.9 | .456 | .454 | 4.1 | 5.0 | .823 | 2.2 | 8.1 | 10.4 | 3.0 | 1.0 | 1.1 | 2.5 | 3.4 | 18.7 |
| 1981-82 | 26 | SEA | NBA | C | 82 | 82 | 37.2 | 7.1 | 14.8 | .479 | 0.0 | 0.2 | .154 | 7.1 | 14.6 | .483 | .480 | 5.5 | 6.4 | .855 | 2.7 | 9.9 | 12.7 | 3.4 | 1.2 | 1.3 | 2.6 | 3.3 | 19.6 |
| 1982-83 | 27 | SEA | NBA | C | 75 | 71 | 34.2 | 6.5 | 13.9 | .464 | 0.0 | 0.1 | .000 | 6.5 | 13.8 | .468 | .464 | 5.3 | 6.4 | .837 | 2.8 | 8.6 | 11.4 | 3.1 | 1.2 | 0.9 | 2.5 | 3.5 | 18.2 |
| 1983-84 | 28 | SEA | NBA | C | 82 | 82 | 36.5 | 7.0 | 14.1 | .499 | 0.0 | 0.0 | .000 | 7.0 | 14.1 | .500 | .499 | 5.0 | 5.9 | .856 | 2.7 | 8.4 | 11.1 | 4.0 | 1.2 | 1.1 | 2.9 | 3.7 | 19.1 |
| 1984-85 | 29 | SEA | NBA | C | 68 | 68 | 35.3 | 6.8 | 13.9 | .489 | 0.0 | 0.1 | .200 | 6.8 | 13.7 | .492 | .490 | 4.9 | 5.8 | .852 | 2.4 | 8.2 | 10.6 | 4.2 | 1.2 | 1.3 | 2.4 | 3.5 | 18.5 |
| 1985-86 | 30 | SEA | NBA | C | 80 | 78 | 34.9 | 6.4 | 13.8 | .462 | 0.0 | 0.2 | .000 | 6.4 | 13.6 | .467 | .462 | 4.4 | 5.1 | .864 | 1.8 | 7.5 | 9.4 | 3.8 | 1.2 | 0.9 | 2.7 | 3.7 | 17.1 |
| 1986-87 | 31 | MIL | NBA | C | 82 | 82 | 30.9 | 4.8 | 10.3 | .463 | 0.0 | 0.0 | .000 | 4.8 | 10.2 | .464 | .463 | 3.2 | 3.8 | .847 | 2.5 | 7.5 | 10.0 | 2.5 | 1.1 | 1.1 | 2.0 | 4.0 | 12.7 |
| 1987-88 | 32 | MIL | NBA | C | 82 | 82 | 35.6 | 6.3 | 12.9 | .486 | 0.0 | 0.2 | .214 | 6.2 | 12.7 | .489 | .487 | 3.9 | 4.2 | .922 | 2.4 | 6.3 | 8.6 | 3.4 | 1.1 | 1.0 | 1.9 | 3.9 | 16.5 |
| 1988-89 | 33 | MIL | NBA | C | 80 | 80 | 32.3 | 4.5 | 10.4 | .431 | 1.0 | 2.7 | .380 | 3.5 | 7.7 | .449 | .480 | 3.3 | 3.7 | .905 | 1.8 | 6.0 | 7.8 | 3.6 | 1.1 | 0.8 | 1.8 | 3.8 | 13.4 |
| 1989-90 | 34 | MIL | NBA | C | 71 | 70 | 31.7 | 4.8 | 11.6 | .416 | 1.0 | 2.8 | .342 | 3.9 | 8.8 | .439 | .457 | 3.2 | 3.7 | .885 | 1.5 | 5.4 | 6.9 | 3.2 | 1.1 | 0.7 | 2.0 | 3.4 | 13.9 |
| 1990-91 | 35 | MIL | NBA | C | 77 | 44 | 25.2 | 3.8 | 9.0 | .427 | 0.6 | 1.8 | .341 | 3.2 | 7.2 | .448 | .460 | 2.2 | 2.6 | .843 | 1.4 | 4.3 | 5.7 | 1.9 | 0.8 | 0.8 | 1.7 | 2.8 | 10.4 |
| Career | | | NBA | | 1107 | 739 | 33.4 | 5.8 | 12.5 | .464 | 0.2 | 0.7 | .328 | 5.6 | 11.9 | .470 | .471 | 3.9 | 4.6 | .849 | 2.3 | 7.5 | 9.8 | 3.2 | 1.0 | 0.9 | 2.3 | 3.5 | 15.6 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| 9 seasons | | SEA | NBA | | 715 | 381 | 34.6 | 6.3 | 13.3 | .471 | 0.0 | 0.1 | .077 | 6.3 | 13.3 | .473 | .471 | 4.3 | 5.1 | .836 | 2.5 | 8.3 | 10.8 | 3.3 | 1.1 | 1.0 | 2.6 | 3.5 | 16.8 |
| 5 seasons | | MIL | NBA | | 392 | 358 | 31.2 | 4.9 | 10.8 | .447 | 0.5 | 1.4 | .352 | 4.3 | 9.4 | .462 | .471 | 3.2 | 3.6 | .884 | 1.9 | 5.9 | 7.9 | 2.9 | 1.0 | 0.9 | 1.9 | 3.6 | 13.4 |