How Jeff Zimmerman's ERA Compares to Similar Players

Jeff Zimmerman posted a career ERA of 3.27, below the relief pitcher average of 3.96 — production that kept him consistently ahead of most peers. Across 3 seasons, the ERA arc showed a promising start, with limited data making longer-term conclusions premature. With 3 seasons of data, the ERA arc was above league norms — too limited for reliable trend analysis. Significant season-to-season variance characterizes the ERA profile — ranging from 2.36 to 5.3 — though the career average remained above league norms.

Jeff Zimmerman Lifetime ERA and Similar Stats

Stats similar to ERA for Jeff Zimmerman
Jeff Zimmerman
ERA
Jeff Zimmerman
Component ERA
Jeff Zimmerman
Defense Independent ERA
Career3.272.863.85
Season Avg.3.272.863.85
162 Game Avg.3.272.863.85
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Jeff Zimmerman ERA Per Season

Jeff Zimmerman'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, North America, or players born in the same country — to see how he stacked up year by year.
Jeff Zimmerman ERA per season line chart

Jeff Zimmerman ERA by Team

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

Jeff Zimmerman ERA Year-Over-Year Change

A waterfall chart tracking how Jeff Zimmerman'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.
Jeff Zimmerman ERA year-over-year waterfall chart

Jeff Zimmerman ERA Distribution vs. Comparable Players

Each box summarizes Jeff Zimmerman'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.
Jeff Zimmerman ERA distribution box chart versus comparable players

Jeff Zimmerman ERA — Season-by-Season Breakdown

Every season of Jeff Zimmerman'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.
Jeff Zimmerman ERA season-by-season breakdown table