The 30 greatest one-season wonders in MLB history

Reviewing the Brew highlights standout Major League Baseball players who produced one exceptional outlier season but were unable to sustain that elite level throughout the remainder of their careers. The list evaluates players across baseball history whose isolated peaks were cut short by injuries, regression, or sudden decline.

Featured players include Brady Anderson following his 50-home run campaign in 1996 for the Baltimore Orioles, 2012 NL Cy Young Award winner R.A. Dickey, and 2016 AL Cy Young recipient Rick Porcello. Other notable inclusions cited for stark single-year spikes include Mark Fidrych, Bryan LaHair, Esteban Loaiza, and Daniel Palka.