Mark Eaton led the NBA in Blocks from 1980–1990 with 485.
That is 59 more blocks than second-place Manute Bol.
| Rk | Player | Season | Value |
|---|---|---|---|
| 1 | Mark Eaton | 1984-85 | 485 |
| 2 | Manute Bol | 1985-86 | 426 |
| 3 | Hakeem Olajuwon | 1989-90 | 399 |
| 4 | Mark Eaton | 1985-86 | 387 |
| 5 | Mark Eaton | 1983-84 | 383 |
| 6 | Manute Bol | 1988-89 | 374 |
| 7 | David Robinson | 1989-90 | 359 |
| 8 | Tree Rollins | 1982-83 | 352 |
| 9 | Patrick Ewing | 1989-90 | 347 |
| 10 | Mark Eaton | 1986-87 | 342 |
| 11 | Mark Eaton | 1987-88 | 338 |
| 12 | Mark Eaton | 1988-89 | 317 |
| 13 | Manute Bol | 1986-87 | 308 |
| 14 | Patrick Ewing | 1988-89 | 299 |
| 15 | Hakeem Olajuwon | 1985-86 | 297 |