Pitchers switching leagues

[RugbyD]

with all the pitching movement I wondered if there is a generally accepted number for how much ERA you gain/lose moving from one league to another? Like if a 4.20 ERA in the AL would roughly have been a 3.70 in the NL or something like that.

[Rubidium]

I remember a thread from about a year ago that showed a switch from the AL to the NL was roughly equivalent to a .40 ERA and a .05 WHIP. I'll see if I can find it again.

edit: http://www.fantasybaseballcafe.com/forums/viewtopic.php?t=101958&highlight=

[wrveres]

I remember a thread from about a year ago that showed a switch from the AL to the NL was roughly equivalent to a .40 ERA and a .05 WHIP. I'll see if I can find it again.

edit: http://www.fantasybaseballcafe.com/forums/viewtopic.php?t=101958&highlight=

solid find

thanks

[Niffoc4]

Nate Silver mentioned on Baseball Prospectus unfiltered that Ted Lilly's ERA in PECOTA changed from a predicted 4.65 (I think) to like a 4.17 with the Cubs. Can we say sleeper? Lilly is a starter I will be targeting...

[GotowarMissAgnes]

Keep in mind that you have to consider park effects, too. Shouldn't be a problem with Lilly, but don't just assume league change is the only factor.

[looptid]

http://www.baseballprospectus.com/unfiltered/?p=46

PECOTA pegs the AL as being 0.25 points of ERA tougher than the NL before looking at park factors or the addition of the designated hitter (so just quality of opponents faced).

[J35J]

Nothing is set in stone. I generally like the AL to NL movement but what happened to Hudson? There are always exceptions, obviously, so don't get too excited about every player that changes leagues.


Jason

[acsguitar]

Nothing is set in stone. I generally like the AL to NL movement but what happened to Hudson? There are always exceptions, obviously, so don't get too excited about every player that changes leagues.


Jason

well Hudson moved from facing the Mariners, Angels, Ranger I think to facing the Mets, Phillys, Marlins,

That and he was overrated