How James Cooper's ERA Compares to Similar Players
James Cooper posted a career ERA of 9.0, well above the starting pitcher average of 3.87 — 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.
James Cooper Lifetime ERA and Similar Stats
Stats similar to ERA for James Cooper
| James Cooper
ERA | James Cooper
Component ERA | James Cooper
Defense Independent ERA |
|---|
| Career | 9 | 8.53 | 4.71 |
| Season Avg. | 9 | 8.53 | 4.71 |
| 162 Game Avg. | 9 | 8.53 | 4.71 |
| More Info | See More | See More | See More |
James Cooper ERA Per Season
James Cooper's ERA for each season of his MLB career, plotted against that year's league average. Switch between comparisons — Negro American League, Hall of Fame, SP, North America, or players born in the same country — to see how he stacked up year by year.
James Cooper ERA by Team
James Cooper's career ERA totals broken down by each team he played for, ordered by when he first joined that team.
James Cooper ERA Year-Over-Year Change
A waterfall chart tracking how James 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.
James Cooper ERA Distribution vs. Comparable Players
Each box summarizes James 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.
James Cooper ERA — Season-by-Season Breakdown
Every season of James 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.
