How Ron Keller's ERA Compares to Similar Players
Ron Keller posted a career ERA of 3.38, below the relief pitcher average of 3.96 — production that kept him consistently ahead of most peers. Across 2 seasons, the ERA arc showed a promising start, with limited data making longer-term conclusions premature. With 2 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 2.81 to 5.06 — though the career average remained above league norms.
Ron Keller Lifetime ERA and Similar Stats
Stats similar to ERA for Ron Keller
| Ron Keller
ERA | Ron Keller
Component ERA | Ron Keller
Defense Independent ERA |
|---|
| Career | 3.38 | 4.97 | 4.55 |
| Season Avg. | 3.38 | 4.97 | 4.55 |
| 162 Game Avg. | 3.38 | 4.97 | 4.55 |
| More Info | See More | See More | See More |
Ron Keller ERA Per Season
Ron Keller'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.
Ron Keller ERA by Team
Ron Keller's career ERA totals broken down by each team he played for, ordered by when he first joined that team.
Ron Keller ERA Year-Over-Year Change
A waterfall chart tracking how Ron Keller'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.
Ron Keller ERA Distribution vs. Comparable Players
Each box summarizes Ron Keller'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.
Ron Keller ERA — Season-by-Season Breakdown
Every season of Ron Keller'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.
