Ben Wallace led the NBA in Blocks in 2002-03 with 10.
Ben Wallace shares the top spot with Jermaine O'Neal.
| Rk | Player | Team | Date | Value |
|---|---|---|---|---|
| 1 | Ben Wallace | DET | 2002-11-20 | 10 |
| 2 | Jermaine O'Neal | IND | 2003-01-22 | 10 |
| 3 | Theo Ratliff | ATL | 2003-02-02 | 9 |
| 4 | Adonal Foyle | GSW | 2003-02-21 | 9 |
| 5 | Theo Ratliff | ATL | 2003-02-14 | 9 |
| 6 | Rasho Nesterovic | MIN | 2003-03-10 | 9 |
| 7 | Theo Ratliff | ATL | 2003-03-22 | 9 |
| 8 | Ben Wallace | DET | 2003-03-20 | 9 |
| 9 | Mamadou N'diaye | TOR | 2002-11-04 | 8 |
| 10 | Stromile Swift | MEM | 2002-11-20 | 8 |
| 11 | Shawn Bradley | DAL | 2002-12-14 | 8 |
| 12 | Tim Duncan | SAS | 2002-12-06 | 8 |
| 13 | Jermaine O'Neal | IND | 2003-01-26 | 8 |
| 14 | Shawn Bradley | DAL | 2002-11-08 | 8 |
| 15 | Keon Clark | SAC | 2003-01-05 | 8 |