How Jerry Koosman's Earned Runs Compares to Similar Players
Jerry Koosman totaled 1,433 career Earned Runs, well above the starting pitcher average of 332.0 — production that significantly underperformed against league baselines. His strongest Earned Runs season came in 1967, posting 15, well below the starting pitcher average of 44.0 that year. The highest point came in 1980 at 109, well above the starting pitcher average of 56.6 that year. The Earned Runs trended upward through the final seasons. The Earned Runs total went from 90 in 1983 to 81 in 1984 and 51 in 1985, falling over the span. The upward arc continued through his final campaign. Significant season-to-season variance characterizes the Earned Runs profile — ranging from 15 to 109 — though the career average remained well below league norms.
Jerry Koosman Lifetime Earned Runs
Stats similar to Earned Runs for Jerry Koosman
| Jerry Koosman
Earned Runs |
|---|
| Career | 1433 |
| Season Avg. | 75.42 |
| 162 Game Avg. | 379.32 |
| More Info | See More |
Jerry Koosman Earned Runs Per Season
Jerry Koosman's Earned Runs for each season of his MLB career, plotted against that year's league average. Switch between comparisons — National League, Hall of Fame, SP, North America, or players born in the same country — to see how he stacked up year by year.
Jerry Koosman Earned Runs by Team
Jerry Koosman's career Earned Runs totals broken down by each team he played for, ordered by when he first joined that team.
Jerry Koosman Cumulative Earned Runs — Career Progression
A running total of Jerry Koosman's career Earned Runs, plotted season by season. Each point shows the cumulative figure through the end of that year, making it easy to see when he reached key milestones and how his pace changed over time.
Jerry Koosman Earned Runs Distribution vs. Comparable Players
Each box summarizes Jerry Koosman's seasonal Earned Runs 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.
Jerry Koosman Earned Runs — Season-by-Season Breakdown
Every season of Jerry Koosman's MLB career with Earned Runs 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.
