How Cal Cooper's ERA Compares to Similar Players

Cal Cooper posted a career ERA of 45.0, 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.

Cal Cooper Lifetime ERA and Similar Stats

Stats similar to ERA for Cal Cooper
Cal Cooper
ERA
Cal Cooper
Component ERA
Cal Cooper
Defense Independent ERA
Career4550.9719
Season Avg.4550.9719
162 Game Avg.4550.9719
More InfoSee MoreSee MoreSee More

Cal Cooper ERA Per Season

Cal Cooper'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.
Cal Cooper ERA per season line chart

Cal Cooper ERA by Team

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

Cal Cooper ERA Year-Over-Year Change

A waterfall chart tracking how Cal Cooper'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.
Cal Cooper ERA year-over-year waterfall chart

Cal Cooper ERA Distribution vs. Comparable Players

Each box summarizes Cal Cooper'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.
Cal Cooper ERA distribution box chart versus comparable players

Cal Cooper ERA — Season-by-Season Breakdown

Every season of Cal Cooper'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.
Cal Cooper ERA season-by-season breakdown table