ERA's need to be based upon a 7 inning game. That's how many innings are in an official game. Anything less is padding the stats. If you change the number of innings, that comparing stats is useless.
On this subject, I use iScore and it creates a spreadsheet and the ERA is based upon 9 innings. I have to then go in and change their calculations. Not real complicated to multiply it by .778, just a hassle. Anyone know how I can change this in the app and where? I have it set for a 7 inning game of softball. I'm thinking it's an error in their program.