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wOBA & Base Running Changes

Posted By David Appelman On October 12, 2012 @ 9:00 am In Site News | 53 Comments

To better isolate batting and base running skills, SB and CS have been removed from wOBA and given their own category wSB.

What’s Changed?

wOBA, wRAA, wRC, wRC+ – These all no longer include SB and CS. SB and CS have been removed entirely from the wOBA calculation include the weights calculation.

Batting – Batting in the Value section no longer includes SB and CS.

Base Running – Base Running in the Value section now includes SB and CS.

FanGraphs Guts! – Our Guts! section now has updated weights and the SB and CS weights for use in wOBA have been replaced with the raw run values.

What’s New?

wSB – how many runs above or below average a player is at stealing bases.

UBR – (miscellaneous baserunning / advancement) is now broken out into a separate category which is in the Advanced section. This contains all the information that was formerly just in Base Running.


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