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Single-Season Leaders & Records for Losses

Photo of John Coleman Photo of Will White Photo of Larry McKeon Photo of George Bradley Photo of Jim McCormick Photo of Kid Carsey Photo of George Cobb Photo of Henry Porter Photo of Bill Hutchinson Photo of Stump Weidman Photo of Jim Devlin Photo of Red Donahue Photo of Pud Galvin+ Photo of Hardie Henderson Photo of Fleury Sullivan Photo of Adonis Terry Photo of Mark Baldwin Photo of Bob Barr Photo of Matt Kilroy Photo of Bobby Mathews

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

Statistic Description: Losses

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.

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