With exams around the corner, rest assured that if you didn’t do as well as you were hoping, perhaps it’s because your college employs some of the toughest graders in the biz.

GradeInflation.com has compiled a list of schools with the toughest grading. The list was created by a former Duke University professor and highlights at which schools it is significantly more difficult to attain A’s. Without further ado, check out the top 25 colleges with the hardest grading.

25. UPenn

24. UC Berkeley

23. University of Michigan

22. Washington University

21. Florida State University

20. University of Wisconsin-Madison

19. University of South Carolina

18. Rutgers University

17. San Diego State University

16. Simon Fraser University (Canada)

15. Reed College

14. Harvey Mudd College

13. Cal State University-Fullerton

12. Virginia Commonwealth University

11. University of Houston

10. Southern Polytechnic State

9. Roanoke College

8. Purdue University

7. Hampden-Sydney College

6. Florida International University

5. Auburn University

4. Rensselaer Polytechnic Institute

3. Princeton University

2. MIT

1. Boston University

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