How Jonathan Aro's ERA Compares to Similar Players

Jonathan Aro posted a career ERA of 6.55, well above the relief pitcher average of 3.96 — production that significantly underperformed against league baselines. Across 2 seasons, the ERA arc showed a disappointing start, with limited data making longer-term conclusions premature. With 2 seasons of data, the ERA arc was below league norms — too limited for reliable trend analysis. Significant season-to-season variance characterizes the ERA profile — ranging from .000 to 6.97 — though the career average remained well below league norms.

Jonathan Aro Lifetime ERA and Similar Stats

Stats similar to ERA for Jonathan Aro
Jonathan Aro
ERA
Jonathan Aro
Component ERA
Jonathan Aro
Defense Independent ERA
Career6.557.735.27
Season Avg.6.557.735.27
162 Game Avg.6.557.735.27
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Jonathan Aro ERA Per Season

Jonathan Aro's ERA for each season of his MLB career, plotted against that year's league average. Switch between comparisons — American League, Hall of Fame, RP, Caribbean, or players born in the same country — to see how he stacked up year by year.
Jonathan Aro ERA per season line chart

Jonathan Aro ERA by Team

Jonathan Aro's career ERA totals broken down by each team he played for, ordered by when he first joined that team.
Jonathan Aro career ERA by team bar chart

Jonathan Aro ERA Year-Over-Year Change

A waterfall chart tracking how Jonathan Aro's career ERA shifted from season to season. Each bar represents the change added to his career total that year, making peak and decline phases easy to spot.
Jonathan Aro ERA year-over-year waterfall chart

Jonathan Aro ERA Distribution vs. Comparable Players

Each box summarizes Jonathan Aro's seasonal ERA alongside a selected comparison group across all seasons he played. The box covers the middle 50% of seasons, the center line is the median, and the whiskers extend to the min and max. A tighter box means more consistency; a higher median means more output. Use the selector to switch comparison groups.
Jonathan Aro ERA distribution box chart versus comparable players

Jonathan Aro ERA — Season-by-Season Breakdown

Every season of Jonathan Aro's MLB career with ERA alongside league, Hall of Fame, positional, birth region, and country-of-birth averages for that year. Career totals include sum, average, min, max, and median.

Note: A dash (—) means no qualifying players existed in that comparison group for that season. Most commonly this happens for the Hall of Fame group.
Jonathan Aro ERA season-by-season breakdown table