In addition to turning the ball over via numerous ill-advised passing attempts and leading the league in blocking fouls, retired Grinder Matt Vaillancourt also exceeded in several defensive aspects of Grinders basketball. This award goes to the best all-around defensive player, with considerations given to rebounds, steals, and blocks.
2024.3 Defensive MVP
| Player | Position | G | REB | STL | BLK | RPG | SPG | BPG | Defense |
|---|---|---|---|---|---|---|---|---|---|
 Mike Gersitz | Forward | 9 | 93 | 32 | 10 | 10.3 | 3.6 | 1.1 | 12.8 |
2024.1
| Player | Position | G | REB | STL | BLK | RPG | SPG | BPG | Defense |
|---|---|---|---|---|---|---|---|---|---|
 Curtis Masich | Forward | 7 | 72 | 10 | 16 | 10.3 | 1.4 | 2.3 | 10.9 |
2023.3
| Player | Position | G | REB | STL | BLK | RPG | SPG | BPG | Defense |
|---|---|---|---|---|---|---|---|---|---|
| Jimmy Zeitz | Guard | 6 | 48 | 25 | 1 | 8.0 | 4.2 | 0.2 | 11.3 |
2023.2
| Player | Position | G | REB | STL | BLK | RPG | SPG | BPG | Defense |
|---|---|---|---|---|---|---|---|---|---|
 Matt Vaillancourt | Forward | 4 | 53 | 7 | 13 | 13.3 | 1.8 | 3.3 | 14.4 |
2023.1
| Player | Position | G | REB | STL | BLK | RPG | SPG | BPG | Defense |
|---|---|---|---|---|---|---|---|---|---|
 Tommy Hughes | Guard | 8 | 98 | 29 | 4 | 12.3 | 3.6 | 0.5 | 12.3 |
2022.3
| Player | Position | G | REB | STL | BLK | RPG | SPG | BPG | Defense |
|---|---|---|---|---|---|---|---|---|---|
| Matt Vaillancourt | Forward | 7 | 91 | 18 | 8 | 13.0 | 2.6 | 1.1 | 11.8 |
2022.2
| Player | Position | G | RPG | SPG | BPG | Defense | GAPE | GmScore |
|---|---|---|---|---|---|---|---|---|
| Mike Gersitz | Forward | 5 | 13.4 | 2.6 | 3.2 | 16.1 | 36.8 | 93.9 |
2022.1
| Player | Position | G | REB | STL | BLK | RPG | SPG | BPG | Defense |
|---|---|---|---|---|---|---|---|---|---|
| Mike Gersitz | Forward | 8 | 112 | 11 | 15 | 14.0 | 1.4 | 1.9 | 11.2 |
2021.3
| Player | Position | G | REB | STL | BLK | RPG | SPG | BPG | Defense |
|---|---|---|---|---|---|---|---|---|---|
 Justin Rybinski | Forward | 7 | 95 | 15 | 10 | 13.6 | 2.1 | 1.4 | 11.7 |
2021.2
| Player | Position | G | REB | STL | BLK | RPG | SPG | BPG | Defense |
|---|---|---|---|---|---|---|---|---|---|
| Mike Gersitz | Forward | 8 | 129 | 25 | 12 | 16.1 | 3.1 | 1.5 | 14.6 |
2021.1
| Player | Position | G | REB | STL | BLK | RPG | SPG | BPG | Defense |
|---|---|---|---|---|---|---|---|---|---|
| Tommy Hughes | Guard | 5 | 61 | 20 | 1 | 12.2 | 4.0 | 0.2 | 12.5 |