AL v. NL

[brett]

Let's say Sammy Sosa has a 102 OPS+ in the AL this year.

Is there a way to figure out how he would really have done in the NL?

Are there times when leagues become pitcher dominant or hitter dominant.

For example a pitcher dominant NL might have a hitter with a 140 OPS+ who would be 120 in the AL (because there are more good hitters in the AL).

Conversely a hitter dominated AL might have a pitcher with a 140 ERA+ who would be 120 in the NL because there are more good pitchers.

And if so, isn't it also possible that time periods featured more truly good hitters, or more truly good pitchers?

Perhaps, for example, there simply were more good hitters from 1924-1936 than in the 60s.

Really my question is, is there any way in heck to tell?

[brett]

Come on, somebody has to have looked into this before???

[dalekeener]

Come on, somebody has to have looked into this before???


I am not a statisticion but I think you would need to use a form of standred deviation for each league.

Need to have league averages vs. mlb averages etc...

Need to first get each leagues stats on a leval playing field so we are not comparing apples and oranges. A .325 hitter in the AL is probaly better than a .325 hitter in the NL at least at this time.

Conversly, a pitcher with a NL era of 3.50 would be significantly worse than an AL pitcher with the same era....

There is a guy on the SOM World forum I think his name is Fred Bobberts ? he is one of the best at breaking this stuff down...he could give you an exact answer to this conundrum.....