About ERA

Earned run average (ERA) is a metric that shows how many earned runs on average, a pitcher or team's pitcher, gives up over the course of nine innings. It is calculated by dividing earned runs by innings pitched then multiplying the result by 9. Generally, for ERA, lower is better. (Source)

Top Minnesota Twins Players by ERA

Which Minnesota Twins players rank highest in 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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Minnesota Twins ERA Per Season

Minnesota Twins's ERA for each season of their history, plotted alongside yearly averages for MLB, the American League, and the American League Central.
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Minnesota Twins ERA Season Distribution vs. MLB and Peers

Each box summarizes ERA across all seasons, comparing the Minnesota Twins to MLB as a whole, the American League, and the American League Central. 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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Minnesota Twins ERA Year-Over-Year Change

A waterfall chart showing how the Minnesota Twins's 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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Minnesota Twins ERA — Season-by-Season Breakdown

Every season of Minnesota Twins's history with ERA alongside yearly averages for MLB, the American League, and the American League Central. Career totals include sum, average, minimum, maximum, and median.
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