How John Poloni's ERA Compares to Similar Players

John Poloni posted a career ERA of 6.43, well above the starting pitcher average of 3.87 — production that significantly underperformed against league baselines. Across 1 season, the ERA arc showed a disappointing start, with limited data making longer-term conclusions premature. With 1 season of data, the ERA arc was below league norms — too limited for reliable trend analysis. Some season-to-season variance runs through the career line, but the career average remained well below league norms across 1 season.

John Poloni Lifetime ERA and Similar Stats

Stats similar to ERA for John Poloni
John Poloni
ERA
John Poloni
Component ERA
John Poloni
Defense Independent ERA
Career6.434.23.86
Season Avg.6.434.23.86
162 Game Avg.6.434.23.86
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John Poloni ERA Per Season

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

John Poloni ERA by Team

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

John Poloni ERA Year-Over-Year Change

A waterfall chart tracking how John Poloni'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.
John Poloni ERA year-over-year waterfall chart

John Poloni ERA Distribution vs. Comparable Players

Each box summarizes John Poloni'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.
John Poloni ERA distribution box chart versus comparable players

John Poloni ERA — Season-by-Season Breakdown

Every season of John Poloni'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.
John Poloni ERA season-by-season breakdown table