Turnover percentage TOs/team possessions Thru December 18 1. Wisconsin (17.3) 2. Penn State (20.0) 3. Northwestern (20.4) 4. Illinois (20.7) 5. Michigan State (21.2) 6. Indiana (21.5) 7. Iowa (22.3) 8. Ohio State (22.6) 9. Michigan (23.2) 10. Minnesota (23.3) 11. Purdue (28.3) Opponent turnover percentage Thru December 18 1. Iowa (25.2) 2. Minnesota (24.9) 3. Indiana (24.4) 4. Illinois (23.6) 5. Purdue (22.8) 6. Northwestern (22.6) 7. Michigan (22.4) 8. Wisconsin (22.0) 9. Penn State (20.7) 10. Ohio State (20.1) 11. Michigan State (19.6)