About Defense Independent ERA

Defense-Independent Component ERA (dERA) is a variation of component ERA, a metric used to forecast ERA based on other pitching statistics. Defense-Independent Component ERA removes a pitcher's defensive statistics and focuses only on their pitching statistics. Generally, for Defense Independent ERA, lower is better. (Source)

Top Chicago/Pittsburgh (Union League) Players by Defense Independent ERA

Which Chicago/Pittsburgh (Union League) players rank highest in Defense Independent ERA? Below are the top ten by single season and by career totals with the team, requiring at least 50 innings pitched for a season record, or 100 innings pitched for a career record with the team.
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Chicago/Pittsburgh (Union League) Defense Independent ERA Per Season

Chicago/Pittsburgh (Union League)'s Defense Independent ERA for each season of their history, plotted alongside yearly averages for MLB, the Union Association, and the Union Association.
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Chicago/Pittsburgh (Union League) Defense Independent ERA Season Distribution vs. MLB and Peers

Each box summarizes Defense Independent ERA across all seasons, comparing the Chicago/Pittsburgh (Union League) to MLB as a whole, the Union Association, and the Union Association. The box covers the middle 50% of seasons, the center line is the median, and the whiskers extend to the min and max values.
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Chicago/Pittsburgh (Union League) Defense Independent ERA Year-Over-Year Change

A waterfall chart showing how the Chicago/Pittsburgh (Union League)'s Defense Independent ERA shifted season over season. Each bar represents the change from the previous year, making it easy to spot peak and decline phases.
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Chicago/Pittsburgh (Union League) Defense Independent ERA — Season-by-Season Breakdown

Every season of Chicago/Pittsburgh (Union League)'s history with Defense Independent ERA alongside yearly averages for MLB, the Union Association, and the Union Association. Career totals include sum, average, minimum, maximum, and median.
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