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 Toronto Blue Jays Players by ERA

Which Toronto Blue Jays 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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Toronto Blue Jays ERA Per Season

Toronto Blue Jays's ERA for each season of their history, plotted alongside yearly averages for MLB, the American League, and the American League East.
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Toronto Blue Jays ERA Season Distribution vs. MLB and Peers

Each box summarizes ERA across all seasons, comparing the Toronto Blue Jays to MLB as a whole, the American League, and the American League East. 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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Toronto Blue Jays ERA Year-Over-Year Change

A waterfall chart showing how the Toronto Blue Jays'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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Toronto Blue Jays ERA — Season-by-Season Breakdown

Every season of Toronto Blue Jays's history with ERA alongside yearly averages for MLB, the American League, and the American League East. Career totals include sum, average, minimum, maximum, and median.
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