Quote:
Originally Posted by rats60
You must not have read my post. Park factor isn't a significant factor. I also never used ERA+ against Marichal, I was giving another poster the benfit of the doubt who was using it, but it is seriously flawed. Its fatal flaw is the assumption that pitching is equal from one era to another which it clearly isn't. People picking deadball era pitchers to compare to Koufax doesn't need a response. I addressed that early in the thread and it should be obvious to any baseball fan why.
|
ERA+ makes no assumption about eras. People who misuse it do that. ERA+ *only* measures a pitcher against his yearly contemporaries. It's a measure of how great he is relative to his competition.