Defensive efficiency: opponent points per possession 2005, conference games only1. Minnesota (0.92)
2. Illinois (0.94)
3. Michigan State (0.95)
4. Ohio State (0.97)
5. Iowa (0.98)
6. Wisconsin (1.00)
7. Indiana (1.03)
8. Purdue (1.06)
9. Michigan (1.07)
10. Northwestern (1.08)
11. Penn State (1.14)