Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
Single-Season Leaders (Blocks)
| 1. | Bol, Manute | (Trulaia) | Boston Blue Bears | 591 |
| 2. | Bol, Manute | (filler) | MIN Frogs | 567 |
| 3. | Eaton, Mark | (walle-2) | Arizona Suns | 534 |
| 4. | Eaton, Mark | (walle-2) | Arizona Suns | 524 |
| 5. | Eaton, Mark | Boston Block Party | 516 | |
| 6. | Eaton, Mark | Flemington Engines 🚆 | 503 | |
| 7. | Eaton, Mark | (Trilling) | LA Showtime | 478 |
| 8. | Bol, Manute | (Trilling) | LA Showtime | 471 |
| 9. | Eaton, Mark | (dmcleaner) | Grand Haven Buccaneers | 471 |
| 10. | Eaton, Mark | (maulucci16) | Norman Walker | 446 |
| 11. | Eaton, Mark | (roguerouge) | Charlotte Hornets | 446 |
| 12. | Bol, Manute | (walle-2) | Arizona Suns | 442 |
| 13. | Eaton, Mark | (Trilling) | LA Showtime | 438 |
| 14. | Eaton, Mark | (maulucci16) | Norman Walker | 438 |
| 15. | Eaton, Mark | (roguerouge) | Charlotte Hornets | 438 |
| 16. | Eaton, Mark | (roguerouge) | Charlotte Hornets | 432 |
| 17. | Eaton, Mark | (filler) | Carolina Bulldogs | 425 |
| 18. | Eaton, Mark | (maulucci16) | Norman Walker | 422 |
| 19. | Eaton, Mark | (roguerouge) | Charlotte Hornets | 418 |
| 20. | Eaton, Mark | New York Knicks | 418 | |
| 21. | Bol, Manute | (filler8) | San Diego Sharks | 415 |
| 22. | Eaton, Mark | (walle-2) | Kentucky Horses | 414 |
| 23. | Eaton, Mark | (filler) | Toronto Tigers | 412 |
| 24. | Eaton, Mark | (filler) | Carolina Bulldogs | 411 |
| 25. | Olajuwon, Hakeem | (Yankee) | Kalamazoo Dunk Squad | 407 |
| 26. | Eaton, Mark | (roguerouge) | Charlotte Hornets | 404 |
| 27. | Eaton, Mark | (maulucci16) | Norman Walker | 403 |
| 28. | Eaton, Mark | (BKFletch007) | Gabbyville Locomotives | 402 |
| 29. | Eaton, Mark | (maulucci16) | 1980's Hair Bands | 402 |
| 30. | Eaton, Mark | New York Knicks | 398 | |
| 31. | Mutombo, Dikembe | Alaska Red Bears | 398 | |
| 32. | Eaton, Mark | (filler) | Carolina Bulldogs | 396 |
| 33. | Eaton, Mark | (maulucci16) | Norman Walker | 395 |
| 34. | Hayes, Elvin | (jamin) | Chester Springs Menjai | 394 |
| 35. | Mutombo, Dikembe | (Bdavids28) | Constant Motion | 394 |
| 36. | Eaton, Mark | (filler) | Phoenix Dragons | 393 |
| 37. | Robinson, David | (shane211) | South Dakota Tigers | 389 |
| 38. | Bol, Manute | Kansas Grasshoppers | 386 | |
| 39. | Robinson, David | Alaska Red Bears | 386 | |
| 40. | Eaton, Mark | (Trulaia) | Boston Bees | 385 |
| 41. | Robinson, David | (dynasty) | Milwaukee Skeletons | 384 |
| 42. | Mutombo, Dikembe | (chasherm) | Madison Comets | 383 |
| 43. | Eaton, Mark | (maulucci16) | Norman Walker | 383 |
| 44. | Olajuwon, Hakeem | (dynasty8) | San Diego Sharks | 383 |
| 45. | Eaton, Mark | (maulucci16) | Norman Walker | 383 |
| 46. | Eaton, Mark | (roguerouge) | Charlotte Hornets | 382 |
| 47. | Eaton, Mark | (filler) | Carolina Bulldogs | 382 |
| 48. | Eaton, Mark | (filler) | Carolina Bulldogs | 380 |
| 49. | Olajuwon, Hakeem | New Jersey Devils | 378 | |
| 50. | Mutombo, Dikembe | Pittsburgh Plunder | 378 |
