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Single-Season Leaders & Records for Wins Above Replacement

Photo of Tim Keefe+ Photo of Old Hoss Radbourn+ Photo of Jim Devlin Photo of Pud Galvin+ Photo of Guy Hecker Photo of Charlie Buffinton Photo of John Clarkson+ Photo of Walter Johnson+ Photo of Silver King Photo of John Clarkson+ Photo of Jim McCormick Photo of Old Hoss Radbourn+ Photo of Walter Johnson+ Photo of Tommy Bond Photo of Amos Rusie+ Photo of Babe Ruth+ Photo of Jim Devlin Photo of Tony Mullane Photo of Tommy Bond Photo of Dwight Gooden

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

Statistic Description: Wins Above Replacement A single number that presents the number of wins the player added to the team above what a replacement player (think AAA or AAAA) would add. Scale for a single-season: 8+ MVP Quality, 5+ All-Star Quality, 2+ Starter, 0-2 Reserve, < 0 Replacement Level Developed by Sean Smith of BaseballProjection.com

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.