Click to Use Secure Login
NOTICE: If you can not view the forum, you may need to log out of and log back in to recreate your forum session.
Views: 698
Posted by Drew Martin
Replies: 0

Thought this was a useful piece from Fangraphs:

LD%: Line drive rate correlates very weakly with BABIP, producing a 0.12 R2. Its better than nothing but, unfortunately, line drive rate has virtually no correlation from year to year, something that rplunkett97 documented here. In other words, line drives do affect pitcher BABIP, but theyre worthless to use in a predictive manner, which is typically the reason why we use these metrics.

IFFB%: Infield fly ball rate does not correlate with BABIP, producing a 0.05 R2. Using IFFB% in a vacuum ignores how frequently a pitcher allows fly balls in the first place; converting it to pop-up rate (PU%, hypothetically) by multiplying IFFB% by overall fly ball rate (FB%) generates a metric that correlates very weakly with BABIP, producing a 0.10 R2.

Hard%: Hard-hit rate does not correlate with BABIP, producing a 0.03 R2. This will be the impetus for the rest of this post. and-hard-contact-allowed/

Current Blog Topics
Current Blog Topics
SportsMemo Ads
Discussion Forum
Post SubjectTime    Last Poster
THR MLB/NBA Podcast11:45    Drew Martin
Paddy Power Betfair Purchas...09:16    Drew Martin
Innovation, worth backing t...13:29    Drew Martin
MLB Tuesday Podcast10:18    Drew Martin
Mike D'Antoni: Rockets ...12:16    Drew Martin

Current Blog


Copyright © 2007 SPORTSMEMO, INC, 1-800-575-3069. is the nation’s premier resource for sports betting and handicapping information. Get free football picks, free NFL picks, free college football picks, free baseball picks, free NBA picks, free college basketball picks, free hockey picks, free golf picks, and free soccer picks from the nation’s top handicappers. Sportsmemo's sports betting insight and analysis comes from some of the most respected sports handicappers in the sports gambling industry including Ted Sevransky (Teddy Covers), Brent Crow of Alatex Sports, Rob Veno, Erin Rynning, Otto Sports, Andrew Lange, Ian Cameron, and Drew Martin. Listen to these handicapping experts daily on the Sportsmemo Podcast Monday-Friday at  Missed the Sportsmemo Podcast?  Past shows are available on's podcast archive page. Looking for daily sports betting tips and sports betting advice on the MLB, NBA, NCAA, NFL, NHL, CFL, and PGA? Check out the interactive sports betting posting forum, power ratings, expert handicapping blogs, and original sports betting articles from the Sportsmemo team that specializes in sports information from a pointspread perspective at   May 24, 2018 04:34 PM.