Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
Single-Season Leaders (Blocks)
| 1. | Bol, Manute | Minnesota Froggers | 567 | |
| 2. | Eaton, Mark | Norman Walker | 478 | |
| 3. | Bol, Manute | Norman Walker | 471 | |
| 4. | Eaton, Mark | (dmcleaner) | Grand Haven Buccaneers | 471 |
| 5. | Eaton, Mark | (dmcleaner) | Grand Haven Buccaneers | 456 |
| 6. | Eaton, Mark | (dmcleaner) | Grand Haven Buccaneers | 439 |
| 7. | Eaton, Mark | Norman Walker | 438 | |
| 8. | Eaton, Mark | (farber00) | Hawaii Eruptions | 432 |
| 9. | Mutombo, Dikembe | (ToxicV) | RG 11 Rowsdowers | 427 |
| 10. | Eaton, Mark | (Joshhuth) | Coastline Waves | 425 |
| 11. | Eaton, Mark | (dalbpho8) | It’s Foggy | 425 |
| 12. | Eaton, Mark | (roguerouge) | Charlotte Hornets | 418 |
| 13. | Eaton, Mark | (bdavids28) | JE 7 Manos | 418 |
| 14. | Bol, Manute | Aurora Bruins 88🏀 | 415 | |
| 15. | Eaton, Mark | (dalbpho8) | It’s Foggy | 411 |
| 16. | Bol, Manute | (farber00) | Hawaii Eruptions | 407 |
| 17. | Mutombo, Dikembe | (bdavids28) | MJ 6 Rowsdowers | 406 |
| 18. | Eaton, Mark | (farber00) | Hawaii Eruptions | 401 |
| 19. | Eaton, Mark | (bdavids28) | JE 7 Manos | 398 |
| 20. | Eaton, Mark | (dalbpho8) | It’s Foggy | 396 |
| 21. | Eaton, Mark | (Joshhuth) | The valley Lake show | 393 |
| 22. | Eaton, Mark | (dmcleaner) | Grand Haven Buccaneers | 391 |
| 23. | Eaton, Mark | (farber00) | Hawaii Eruptions | 391 |
| 24. | Eaton, Mark | (farber00) | Hawaii Eruptions | 390 |
| 25. | Robinson, David | (shane211) | South Dakota Tigers | 389 |
| 26. | Eaton, Mark | (Joshhuth) | Coastline Waves | 387 |
| 27. | Eaton, Mark | (farber00) | Hawaii Eruptions | 385 |
| 28. | Bol, Manute | (saeval) | Las Vegas Sting | 384 |
| 29. | Olajuwon, Hakeem | (sytsmab) | LA Lakers | 383 |
| 30. | Eaton, Mark | Cronx Gamblers 🎲 | 383 | |
| 31. | Mutombo, Dikembe | (ToxicV) | RG 11 Rowsdowers | 383 |
| 32. | Mutombo, Dikembe | (chasherm) | Madison Comets | 383 |
| 33. | Olajuwon, Hakeem | Carolina Red Wolf | 378 | |
| 34. | Mutombo, Dikembe | (Jason1981) | Detroit Rock City | 378 |
| 35. | Bol, Manute | (Consigliere33) | Seattle SuperSonics | 378 |
| 36. | Mutombo, Dikembe | (bdavids28) | Space Mutiny | 377 |
| 37. | Mutombo, Dikembe | (Wortguy) | AVENEL REDHAWKS 🦅 | 376 |
| 38. | Olajuwon, Hakeem | (sytsmab) | Dodge City Shooters | 375 |
| 39. | Bol, Manute | (dmcleaner) | Grand Haven Buccaneers | 374 |
| 40. | Eaton, Mark | (Joshhuth) | Coastline Waves | 374 |
| 41. | Mutombo, Dikembe | (Weigenberger) | Philadelphia Eagles | 373 |
| 42. | Bol, Manute | (Joshhuth) | The valley Lake show | 371 |
| 43. | Bol, Manute | (saeval) | Las Vegas Sting | 370 |
| 44. | Eaton, Mark | (farber00) | Hawaii Eruptions | 368 |
| 45. | Olajuwon, Hakeem | (filler) | Michigan Wolverines 🏆 | 368 |
| 46. | Mutombo, Dikembe | (bdavids28) | DH 11 Hunters | 368 |
| 47. | Mourning, Alonzo | (farber00) | Hawaii Eruptions | 368 |
| 48. | Mutombo, Dikembe | (ray23) | Austin Automatics | 367 |
| 49. | Mutombo, Dikembe | (shane211) | South Dakota Tigers | 366 |
| 50. | Mutombo, Dikembe | (Luccy8) | Bronx Boomers | 365 |
