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#1
05-25-2006, 04:38 PM
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Bullpen ERA\'s lower
Baseball scholars:
Is there any stat out there that takes into account that, (all other things equal), pitchers who pitch out of the bullpen will likely have lower ERA's than starters? Thanks. 
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#2
05-25-2006, 04:43 PM
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Re: Bullpen ERA\'s lower
You can just add about 0.80 to their ERA, and it's about right.
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#3
05-25-2006, 04:45 PM
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Re: Bullpen ERA\'s lower
[ QUOTE ]
You can just add about 0.80 to their ERA, and it's about right. [/ QUOTE ] What does that take into account?
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#4
05-25-2006, 04:49 PM
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Re: Bullpen ERA\'s lower
[ QUOTE ]
[ QUOTE ] You can just add about 0.80 to their ERA, and it's about right. [/ QUOTE ] What does that take into account? [/ QUOTE ] The fact that starting pitchers are typically more talented. Or, to be more precise, more really talented pitchers are tabbed to be starters...so that you have the most talent on the mound for the most innings.
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#5
05-25-2006, 04:50 PM
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Re: Bullpen ERA\'s lower
The difference in difficulty between starting and relieving. In The Book, they looked at the difference in ERA between starters and relievers and it came out to about .80
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#6
05-25-2006, 04:53 PM
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Re: Bullpen ERA\'s lower
[ QUOTE ]
The difference in difficulty between starting and relieving. In The Book, they looked at the difference in ERA between starters and relievers and it came out to about .80 [/ QUOTE ] So a reliever's ERA should be about .8 higher than a starters?
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#7
05-25-2006, 04:55 PM
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Re: Bullpen ERA\'s lower
What it means is that when a starter becomes a reliever, in average, his ERA will go down around .8 runs.
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#8
05-25-2006, 05:05 PM
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Re: Bullpen ERA\'s lower
What I'm wondering about, specifically is whether there is a way to quantify the advantage relievers have when they come into an inning and only need to get 2 outs or even 1.
Since the scoring slate is wiped clean after every inning, this helps the relievers who only have to come in to get 1 out or 2. They are less likely to give up a run in these innings than they would be if they needed 3 outs. I don't think there is an easy calculation for it though. It's hard to quantify, but it's definitely relevant.
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#9
05-25-2006, 05:05 PM
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Re: Bullpen ERA\'s lower
[ QUOTE ]
The fact that starting pitchers are typically more talented. Or, to be more precise, more really talented pitchers are tabbed to be starters...so that you have the most talent on the mound for the most innings. [/ QUOTE ] Its easier to pitch effectively over shorter appearances (fresher from fewer pitches, often lefty-lefty or righty-righty matchups, rarely face same batter multiple times, partial innings), hence reliever ERAs are lower.
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#10
05-25-2006, 05:10 PM
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Re: Bullpen ERA\'s lower
[ QUOTE ]
Its easier to pitch effectively over shorter appearances (fresher from fewer pitches, often lefty-lefty or righty-righty matchups, rarely face same batter multiple times, partial innings), hence reliever ERAs are lower. [/ QUOTE ] J.R., read my previous post. Have you factored this in yet? This is something that I didn't even realize until about a week ago. What are your thoughts on this affect?
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