Here is how Justin Fields stacks up in the last 30 years for Ohio State starting QBs and how they performed against Michigan. I am using adjusted yards per attempt, which is total yards plus 20*TDs minus 45*INTs
Haskins had 13.4 in 2017, although I didn't include it in this list since it was on 7 attempts
1. Haskins, 2018, 16.6
2. Fields, 2019, 15.3
3. Germaine, 1998, 13.9
4. Smith, 2004, 12.2
5. Miller, 2012, 11.6
6. Germaine, 1996, 10.1
7. Barrett, 2014, 9.3
8. Miller, 2011, 9.2
9. Barrett, 2015, 8.9
10. Krenzel, 2002, 8.9
11. Pryor, 2008, 8.8
12. Smith, 2006, 8.6
13. Smith, 2005, 8.6
14. Miller, 2013, 8.5
15. Pryor, 2010, 8.0
16. Krenzel, 2003, 7.9
17. Hoying, 1994, 6.9
18. Krenzel, 2001, 6.6
19. Herbstreit, 1992, 6.3
20. Germaine, 1997, 6.1
21. Hoying, 1995, 4.8
22. Hoying, 1993, 3.7
23. Herbstreit/Graham, 1991, 3.2
24. Bellisari, 2000, 2.9
25. Barrett, 2016, 2.5
26. Pryor, 2009, 2.5
27. Bellisari, 1999, 1.7
28. Frey, 1990, 1.6
29. Boeckman, 2007, 0.4
Haskins had 13.4 in 2017, although I didn't include it in this list since it was on 7 attempts
1. Haskins, 2018, 16.6
2. Fields, 2019, 15.3
3. Germaine, 1998, 13.9
4. Smith, 2004, 12.2
5. Miller, 2012, 11.6
6. Germaine, 1996, 10.1
7. Barrett, 2014, 9.3
8. Miller, 2011, 9.2
9. Barrett, 2015, 8.9
10. Krenzel, 2002, 8.9
11. Pryor, 2008, 8.8
12. Smith, 2006, 8.6
13. Smith, 2005, 8.6
14. Miller, 2013, 8.5
15. Pryor, 2010, 8.0
16. Krenzel, 2003, 7.9
17. Hoying, 1994, 6.9
18. Krenzel, 2001, 6.6
19. Herbstreit, 1992, 6.3
20. Germaine, 1997, 6.1
21. Hoying, 1995, 4.8
22. Hoying, 1993, 3.7
23. Herbstreit/Graham, 1991, 3.2
24. Bellisari, 2000, 2.9
25. Barrett, 2016, 2.5
26. Pryor, 2009, 2.5
27. Bellisari, 1999, 1.7
28. Frey, 1990, 1.6
29. Boeckman, 2007, 0.4