ERA = (Earned Runs / IP) * 9
ERA is one of the oldest pitching metrics still used today. It simply is the average of earned runs given up by a pitcher per nine innings (i.e. the traditional length of a game).
Like a golf score, the lower it is… the better!
Top 10 Brewers ERA (All-Time)
- 2.21 Ken Sanders
- 2.66 Jeremy Jeffress
- 2.96 Bill Castro
- 2.99 Mike Fetters
- 3.20 Bob Wickman
- 3.21 Dan Plesac
- 3.47 Chuck Crim
- 3.60 Shaun Marcum
- 3.61 Teddy Higuera
- 3.65 Jim Colburn
***Updated 12/2020
FURTHER READING
For a FULL LIST of Brewers ERA Leaders (All-Time), just follow this LINK
More recently, ERA has been improved upon by Baseball Reference and FanGraphs. For a complete BREW MATHs Summary of ADJUSTED ERA (ERA+ & ERA-) click HERE