How Leon Williams's ERA Compares to Similar Players

Leon Williams posted a career ERA of 5.4, well above the relief pitcher average of 3.96 — 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.

Leon Williams Lifetime ERA and Similar Stats

Stats similar to ERA for Leon Williams
Leon Williams
ERA
Leon Williams
Component ERA
Leon Williams
Defense Independent ERA
Career5.48.443
Season Avg.5.48.443
162 Game Avg.5.48.443
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Leon Williams ERA Per Season

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

Leon Williams ERA by Team

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

Leon Williams ERA Year-Over-Year Change

A waterfall chart tracking how Leon Williams'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.
Leon Williams ERA year-over-year waterfall chart

Leon Williams ERA Distribution vs. Comparable Players

Each box summarizes Leon Williams'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.
Leon Williams ERA distribution box chart versus comparable players

Leon Williams ERA — Season-by-Season Breakdown

Every season of Leon Williams'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.
Leon Williams ERA season-by-season breakdown table