ERAces

(Minimum 150 innings)

* = Lowest ERA in NL/AL

*1. Sandy Koufax - 1.73 in 323 innings (Los Angeles Dodgers, 1966)

*2. Sandy Koufax - 1.74 in 223 innings (Los Angeles Dodgers, 1964)

*3. Sandy Koufax - 1.88 in 311 innings (Los Angeles Dodgers, 1963)

3. Joe Horlen - 1.88 in 210 innings (Chicago White Sox, 1964)

*4. Sandy Koufax - 2.04 in 335 innings (Los Angeles Dodgers, 1965)

5. Joe Horlen - 2.06 in 258 innings (Chicago White Sox, 1967)

6. Dave Roberts - 2.10 in 269 innings (San Diego Padres, 1971)

7. Joe Horlen - 2.37 in 223 innings (Chicago White Sox, 1968)

8. Joe Horlen - 2.43 in 211 innings (Chicago White Sox, 1966)

9. Ken Holtzman - 2.51 in 265 innings (Oakland Athletics, 1972)

*10. Sandy Koufax - 2.54 in 184 innings (Los Angeles Dodgers, 1962)

*11. Saul Rogovin - 2.78 in 216 innings (Detroit Tigers/Chicago White Sox, 1951)

12. Dave Roberts - 2.85 in 249 innings (Houston Astros, 1973)

13. Joe Horlen - 2.88 in 219 innings (Chicago White Sox, 1965)

14. Ken Holtzman - 2.97 in 297 innings (Oakland Athletics, 1973)

15. Ken Holtzman - 3.07 in 255 innings (Oakland Athetlics, 1974)

16. Dan Warthen - 3.11 in 167 innings (Montreal Expos, 1975)

17. Ken Holtzman - 3.14 in 266 innings (Oakland Athetlics, 1975)

18. Steve Stone - 3.23 in 250 innings (Baltimore Orioles, 1980)

19. Ken Holtzman - 3.35 in 215 innings (Chicago Cubs, 1968)

20. Ken Holtzman - 3.38 in 287 innings (Chicago Cubs, 1970)

21. Dave Roberts - 3.40 in 204 innings (Houston Astros, 1974)

22. Sandy Koufax - 3.52 in 255 innings (Los Angeles Dodgers, 1961)

23. Ross Baumgarten - 3.54 in 190 innings (Chicago White Sox, 1979)

24. Ken Holtzman - 3.58 in 261 innings (Chicago Cubs, 1969)

25. Ken Holtzman - 3.65 in 246 innings (Baltimore Orioles/New York Yankees, 1976)

26. Jason Marquis - 3.71 in 201 innings (St. Louis Cardinals, 2004)

27. Barry Latman - 3.75 in 156 innings (Chicago White Sox, 1959)

28. Steve Stone - 3.77 in 186 innings (Baltimore Orioles, 1979)

29. Joe Horlen - 3.78 in 235 innings (Chicago White Sox, 1969)

30. Ken Holtzman - 3.79 in 220 innings (Chicago Cubs, 1966)

31. Dave Roberts - 3.81 in 181 innings (San Diego Padres, 1970)

32. Saul Rogovin - 3.85 in 231 innings (Chicago White Sox, 1952)

33. Sandy Koufax - 3.91 in 175 innings (Los Angeles Dodgers, 1960)

34. Steve Stone - 3.95 in 214 innings (Chicago Cubs, 1975)