Register    Login    Forum    Search    FAQ

Board index » Baseball Matters » Major League Baseball




 Page 2 of 2 [ 22 posts ] Go to page Previous  1, 2



Author Message
 Post subject: Re: Baseball Stats Defined
 Post Posted: Sun Jun 04, 2017 10:00 am 
Offline
User avatar

Joined: Sun Aug 01, 2010 10:28 pm
Posts: 4774
Nice read on launch angles and groundballs bad, level swings bad, flyballs uppercuts good. ;)

http://www.denverpost.com/2017/06/02/st ... nch-angle/


Top 
 Post subject: Re: Baseball Stats Defined
 Post Posted: Tue Dec 05, 2017 1:24 pm 
Offline
User avatar

Joined: Sat Jul 31, 2010 4:27 pm
Posts: 12079
I just discovered something interesting, and sent the following to Fangraphs. Strange discrepancy between Fangraphs and Baseball-reference on High Leverage Stats. This would impact a lot their WPA numbers too. I sent note to FG, will see what they have to say if they respond.


When comparing high leverage numbers for a couple of players today between FG and Baseball Reference, and I noticed that there are always a lot more High Leverage PA total at BR compared to FG. So I went to the league splits and found the following

Code:
site  High  Med     Low unknown ttl lvgPA ttl PA
BR:: 33780 68813  82478 224     185295    185295
FG:: 16802 74992  93501   0     177074    185295


the gist is this:

clearly there is a pretty big difference in the way High/low Leverage is defined and why there is such a large discrepancy between the two sites on this.

EDIT: I made a an error transposting AB and PA in the medium leverage column for FG, thats been corrected

Here is what David Appelman shared with me via e mail

We define high leverage as any play with a LI greater or equal to 2.0, low leverage is less than or equal to 0.8. I think baseball-reference has something slightly different. The idea is to keep high leverage plays around 10% of total plays. I guess we're at more around 9% this year.

_________________
It's time for ownership to stop pretending they can't afford substantial payroll increases from recent levels. They absolutely can
viewtopic.php?p=244425#p244425


Top 
Display posts from previous:  Sort by  
 
 Page 2 of 2 [ 22 posts ] Go to page Previous  1, 2




Board index » Baseball Matters » Major League Baseball


Who is online

Users browsing this forum: No registered users and 1 guest

 
 

 
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to: