Comments on: What is wRC+?

By: John C

John C — Tue, 14 Sep 2010 20:19:01 +0000

Actually, and Tango made the same error, it’s:

c=b/a + 1

This is because you want to compare the player’s performance wrt average to the league average.

By: Seels

Seels — Fri, 19 Feb 2010 03:37:21 +0000

Ok, then do that. Why are you at Fangraphs if all you care about are triple crown stats?

By: TD

TD — Fri, 19 Feb 2010 00:40:19 +0000

RBI

OBP …OK. Whatever.

But after this, I rather just watch the games.

By: Andy

Andy — Tue, 12 Jan 2010 21:08:39 +0000

Any idea when this will make it to the individual season leaderboards?

By: DME

DME — Thu, 17 Dec 2009 09:36:25 +0000

And I do not wish to say I make my prev. statement in spite or anger or brag or anything. I am very glad to see the addition. My sense of humor is poor. I love the site (hell, I quote it perhaps too much, along with THT) and only wish the best upon ya.

Apologies.

but seriously…xFIP+!

By: DME

DME — Thu, 17 Dec 2009 09:34:00 +0000

slight exaggeration, maybe, but multiple emails were sent…

By: A Different Dan

A Different Dan — Wed, 16 Dec 2009 22:51:08 +0000

I had exactly the same thought/thought problem.

By: neuter_your_dogma

neuter_your_dogma — Wed, 16 Dec 2009 21:34:53 +0000

Yeah, but he is still slower than the Babe using SPD.

By: tangotiger

tangotiger — Mon, 14 Dec 2009 22:02:12 +0000

FIP+ would be very easy, since that’s FIP/lgERA.

I am COMPLETELY opposed to the way b-r.com does it (lgERA / ERA). It’s beyond the silly to put the thing you are comparing against in the numerator, all because you want to make it “bigger is better”. I have a whole thread dedicated to this if someone is interested.

The only suggestion I have seen that makes any sense is:
2 – ERA/lgERA
And then multiply by 100. This way, if you have a 4.00 lgERA and your ERA is 3.00, then your ERA+ (or FIP+) is 125. And if you have a 5.00 ERA, then your ERA+ is 75. Notice the symmetry and the bigger-is-better.

The way b-r.com does it, you end up with 133 and 80, even though together the two pitchers would be average.

By: tangotiger

tangotiger — Mon, 14 Dec 2009 21:56:57 +0000

“it wasn’t tangotiger who pointed out how easy it was to do or that you should add this stat”

I obviously did say it. No need to say that I didn’t say something that I’m on record as saying I said!

If he meant he was the FIRST to do it, that’s fine. I don’t really track who said what when. It’s not an insightful suggestion by any means.

For the record, I don’t normally track when I say things, but I do know that I posted on Sean’s blog to get RC+ up there about two years ago.

And I talked about Linear Weights Ratio relative to league average at least as far back as 2003 when I wrote this article:
http://tangotiger.net/banner.html

Anyway, enough with who said what first on such an uncreative concept.