How Jack Leiter's ERA Compares to Similar Players

Jack Leiter has posted a career ERA of 4.8, well above the starting pitcher average of 3.87 — production that has significantly underperformed against league baselines. Across 2 seasons, the ERA arc has shown a disappointing start, with limited data making longer-term conclusions premature. With 2 seasons of data, the ERA arc has been below league norms — too limited for reliable trend analysis. Significant season-to-season variance characterizes the ERA profile — ranging from 3.86 to 8.83 — though the career average has remained well below league norms.

Jack Leiter Lifetime ERA and Similar Stats

Stats similar to ERA for Jack Leiter
Jack Leiter
ERA
Jack Leiter
Component ERA
Jack Leiter
Defense Independent ERA
Career4.84.124.3
Season Avg.4.84.124.3
162 Game Avg.4.84.124.3
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Jack Leiter ERA Per Season

Jack Leiter'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.
Jack Leiter ERA per season line chart

Jack Leiter ERA by Team

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

Jack Leiter ERA Year-Over-Year Change

A waterfall chart tracking how Jack Leiter'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.
Jack Leiter ERA year-over-year waterfall chart

Jack Leiter ERA Distribution vs. Comparable Players

Each box summarizes Jack Leiter'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.
Jack Leiter ERA distribution box chart versus comparable players

Jack Leiter ERA — Season-by-Season Breakdown

Every season of Jack Leiter'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.
Jack Leiter ERA season-by-season breakdown table