Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
Single-Season Leaders (Blocks)
| 1. | Bol, Manute | (filler) | WAS Gorillas | 567 |
| 2. | Eaton, Mark | Dr J’s Jammie Jam | 534 | |
| 3. | Eaton, Mark | Dr J’s Jammie Jam | 524 | |
| 4. | Eaton, Mark | (Trilling) | LA Showtime | 478 |
| 5. | Bol, Manute | (Trilling) | LA Showtime | 471 |
| 6. | Eaton, Mark | (dmcleaner) | Grand Haven Buccaneers | 471 |
| 7. | Eaton, Mark | (maulucci16) | Norman Walker | 446 |
| 8. | Eaton, Mark | (roguerouge) | Charlotte Hornets | 446 |
| 9. | Bol, Manute | Dr J’s Jammie Jam | 442 | |
| 10. | Eaton, Mark | (maulucci16) | Norman Walker | 438 |
| 11. | Eaton, Mark | (Trilling) | LA Showtime | 438 |
| 12. | Eaton, Mark | (roguerouge) | Charlotte Hornets | 438 |
| 13. | Eaton, Mark | (roguerouge) | Charlotte Hornets | 432 |
| 14. | Eaton, Mark | Louisiana Gators | 425 | |
| 15. | Eaton, Mark | (maulucci16) | Norman Walker | 422 |
| 16. | Eaton, Mark | (roguerouge) | Charlotte Hornets | 418 |
| 17. | Eaton, Mark | (shp73256) | Buddy's Buddies | 418 |
| 18. | Bol, Manute | (filler8) | Dallas Mustangs | 415 |
| 19. | Eaton, Mark | Dallas Mustangs | 414 | |
| 20. | Eaton, Mark | Boston Bulldogs | 412 | |
| 21. | Eaton, Mark | Louisiana Gators | 411 | |
| 22. | Olajuwon, Hakeem | (Cimi) | Kentucky Horses | 407 |
| 23. | Eaton, Mark | (roguerouge) | Charlotte Hornets | 404 |
| 24. | Eaton, Mark | (maulucci16) | Norman Walker | 403 |
| 25. | Eaton, Mark | (BKFletch007) | Gabbyville Locomotives | 402 |
| 26. | Eaton, Mark | (shp73256) | Buddy's Buddies | 398 |
| 27. | Mutombo, Dikembe | (walle-2) | Alaska Red Bears | 398 |
| 28. | Eaton, Mark | Louisiana Gators | 396 | |
| 29. | Eaton, Mark | (maulucci16) | Norman Walker | 395 |
| 30. | Hayes, Elvin | (jamin) | Chester Springs Menjai | 394 |
| 31. | Mutombo, Dikembe | (Bdavids28) | Constant Motion | 394 |
| 32. | Olajuwon, Hakeem | (Wortguy) | Brooklyn Parakeets 🦜 🏆 | 394 |
| 33. | Eaton, Mark | (filler) | Arizona Suns | 393 |
| 34. | Robinson, David | (shane211) | South Dakota Tigers | 389 |
| 35. | Robinson, David | (walle-2) | Alaska Red Bears | 386 |
| 36. | Robinson, David | Louisiana Gators | 384 | |
| 37. | Mutombo, Dikembe | (chasherm) | Madison Comets | 383 |
| 38. | Eaton, Mark | (maulucci16) | Norman Walker | 383 |
| 39. | Olajuwon, Hakeem | Carolina Bulldogs | 383 | |
| 40. | Eaton, Mark | (maulucci16) | Norman Walker | 383 |
| 41. | Eaton, Mark | Louisiana Gators | 382 | |
| 42. | Eaton, Mark | (roguerouge) | Charlotte Hornets | 382 |
| 43. | Eaton, Mark | Louisiana Gators | 380 | |
| 44. | Olajuwon, Hakeem | (dynasty) | New Jersey Devils | 378 |
| 45. | Mutombo, Dikembe | (goo3091) | Pittsburgh Plunder | 378 |
| 46. | Mutombo, Dikembe | (shane211) | South Dakota Norsemen | 375 |
| 47. | Olajuwon, Hakeem | Alabama Arsenal | 375 | |
| 48. | Mutombo, Dikembe | (5ink) | Boston Bees | 373 |
| 49. | Olajuwon, Hakeem | (filler) | Las Vegas Gladiators | 372 |
| 50. | Eaton, Mark | (roguerouge) | Charlotte Hornets | 372 |
