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Single-Season Leaders & Records for Situ. Wins Added (WPA/LI)

Photo of Barry Bonds Photo of Barry Bonds Photo of Barry Bonds Photo of Mickey Mantle+ Photo of Mark McGwire Photo of Carl Yastrzemski+ Photo of Ted Williams+ Photo of Mickey Mantle+ Photo of Jimmie Foxx+ Photo of Mickey Mantle+ Photo of Sammy Sosa Photo of Larry Walker Photo of Norm Cash Photo of Reggie Jackson+ Photo of Barry Bonds Photo of Gary Sheffield Photo of Ted Williams+ Photo of Hank Aaron+ Photo of Barry Bonds Photo of Mickey Mantle+

+ - Indicates Hall of Famer. Bold indicates active player.

Statistic Description: Situational Wins (WPA/LI) It is the sum of WPA divided by the leverage index for each play. WPA depends greatly on the context of the at bats. This stat does not.

Only players who finished in the top 40 for the majors in a season will appear on this list.
Leaders from the current season are only included for rate stats after July 1st.

This statistic is computed from play-by-play data which is only complete from 1974 to the present. From 1930-1973, the data is incomplete, though for most seasons only less than 20 games per season total are missing. Please see our page on data coverage for a full view of the data used to create these lists.


Note that seasons prior to 1876 are not included in single-season marks, but are included in career marks.