WNBA Leaders and Records for Block Pct: Season ▪ Career ▪ Active ▪ Yearly
| Rank | Player | BLK% | Year |
|---|---|---|---|
| 1. | Margo Dydek | 10.73 | 1998 |
| 2. | Margo Dydek | 10.46 | 2000 |
| 3. | Margo Dydek | 9.75 | 2001 |
| 4. | Vanessa Hayden | 9.53 | 2005 |
| 5. | Maria Stepanova | 9.45 | 1999 |
| 6. | Margo Dydek | 9.32 | 2002 |
| 7. | Margo Dydek | 9.24 | 1999 |
| 8. | LaToya Pringle | 9.03 | 2008 |
| 9. | Margo Dydek | 8.70 | 2003 |
| 10. | Margo Dydek | 8.46 | 2005 |
| 11. | Margo Dydek | 8.45 | 2006 |
| 12. | Lauren Jackson | 8.03 | 2002 |
| 13. | Vanessa Hayden | 7.99 | 2006 |
| 14. | Margo Dydek | 7.76 | 2007 |
| 15. | Ruth Riley | 7.63 | 2002 |
| 16. | Maria Stepanova | 7.61 | 2005 |
| 17. | Lisa Leslie | 7.50 | 2004 |
| 18. | Lisa Leslie | 7.27 | 2008 |
| 19. | Lisa Leslie | 7.24 | 2002 |
| 20. | Lisa Leslie | 6.83 | 2003 |
| 21. | Sylvia Fowles | 6.79 | 2008 |
| 22. | Maria Stepanova | 6.75 | 2001 |
| 23. | Sylvia Fowles | 6.73 | 2010 |
| 24. | Cintia dos Santos | 6.60 | 2000 |
| 25. | Alison Bales | 6.59 | 2008 |