Boston Reds ERA Charts and Records
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 Boston Reds Players by ERA
Which Boston Reds 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.
Boston Reds ERA Per Season
Boston Reds's ERA for each season of their history, plotted alongside yearly averages for MLB, the Players' League, and the Players' League.
Boston Reds ERA Season Distribution vs. MLB and Peers
Each box summarizes ERA across all seasons, comparing the Boston Reds to MLB as a whole, the Players' League, and the Players' League. The box covers the middle 50% of seasons, the center line is the median, and the whiskers extend to the min and max values.
Boston Reds ERA Year-Over-Year Change
A waterfall chart showing how the Boston Reds's ERA shifted season over season. Each bar represents the change from the previous year, making it easy to spot peak and decline phases.
Boston Reds ERA — Season-by-Season Breakdown
Every season of Boston Reds's history with ERA alongside yearly averages for MLB, the Players' League, and the Players' League. Career totals include sum, average, minimum, maximum, and median.