New Pitcher Value Stats

The Value (WAR) section for pitchers has been updated to help further break out a pitcher’s value. These stats are now available in the leaderboards and player pages.

We’ve added the following stats:

RA9-Wins – Wins above replacement calculated with RA9. This is both park adjusted and league adjusted.

BIP-Wins – Wins above average based on BABIP. This is both park and league adjusted.

LOB-Wins – Sequencing (and miscellaneous) wins above average calculated as RA9Wins – WAR – BIPWins.

FDP-Wins (Fielder Dependent Wins) – This is the full difference between RA9Wins and WAR, or BIPWins + LOBWins.

WAR – Wins Above Replacement remains unchanged.

Dave Cameron will have two posts with more details about these new stats at 9:00am and 10:00am and will be answering questions during his 12:00pm chat.

The full formula for BIP-Wins is:

((((H-HR)*(w1B * p1B + w2B * pxBH) ) / (TBF – HR – BB – HBP – SO)) – lgwBABIP) * (TBF – HR – BB – HBP – SO) / PF / RtW * -1

p1B = singles as a percentage of hits that are not home runs
pxBH = doubles and triples as a percentage of hits that are not home runs
w1B = linear weight value of a single
w2B = linear weight value of a double
RtW = runs to wins converter
PF = park factor
lgwBABIP = league average: ((H-HR)*(w1B * p1B + w2B * pxBH)) / (TBF – HR – BB – HBP – SO)

David Appelman is the creator of FanGraphs.

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10 years ago

head explode