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View Full Version : FIP and xFIP?



UPRedsFan
12-30-2011, 08:33 PM
would someone please explain what FIP and xFIP are measuring and how it's calculated?

Red Raindog
12-30-2011, 09:01 PM
would someone please explain what FIP and xFIP are measuring and how it's calculated?

Try this -- they explain it better than I can

http://www.fantasybaseballbuzz.com/what-the-f-i-p/

nmculbreth
12-30-2011, 11:34 PM
The basic idea behind FIP is that it measures events that a pitcher can control - Ks, BBs, HBPs and HRs - and omits balls put in play because they're largely out of the pitcher's control. xFIP is similar to FIP, the only difference being that xFIP replaces each pitcher's home run per fly ball rate with the league average rate.

FanGraphs has a nice glossary for sabermetric terms which can be found below:

http://www.fangraphs.com/library/index.php/pitching/

Cant Touch This
12-31-2011, 11:00 AM
The basic idea behind FIP is that it measures events that a pitcher can control - Ks, BBs, HBPs and HRs - and omits balls put in play because they're largely out of the pitcher's control. xFIP is similar to FIP, the only difference being that xFIP replaces each pitcher's home run per fly ball rate with the league average rate.

FanGraphs has a nice glossary for sabermetric terms which can be found below:

http://www.fangraphs.com/library/index.php/pitching/

As long as humans are calling balls and strikes, pitchers can't necessarily control walks and strikeouts. Additionally, if the point of FIP is to illustrate how a pitcher pitched regardless of the defense behind him, then how do you account for walks and HRs allowed after an error was committed that should have ended an inning?