The Royals released Kyle Davies today.
Davies has the worst ERA in the history of major league pitchers with more than 100 career decisions - 5.59.
However, he does not have the worst adjusted ERA. Davies' ERA+ of 77 is 2 points better than Phil Ortega's.
Ortega is 46 - 62 4.43 in 952 innings pitching for the Dodgers, Senators, and Angels.
Davies is 42 - 65 5.59 in 768 innings pitching for the Braves and Royals.
The era in which a pitcher plied his trade makes a big difference.