How Adam Peterson's ERA Compares to Similar Players
Adam Peterson posted a career ERA of 5.46, well above the starting pitcher average of 3.87 — production that significantly underperformed against league baselines. His strongest ERA season came in 1991, posting 4.45, above the starting pitcher average of 3.96 that year. The highest point came in 1989 at 15.19, well above the starting pitcher average of 3.76 that year. The ERA trended upward through the final seasons. The figure moved from 15.19 in 1989 to 4.55 in 1990 and 4.45 in 1991. The upward arc continued through his final campaign. Significant season-to-season variance characterizes the ERA profile — ranging from 4.45 to 15.19 — though the career average remained well below league norms.
Adam Peterson Lifetime ERA and Similar Stats
Stats similar to ERA for Adam Peterson
| Adam Peterson
ERA | Adam Peterson
Component ERA | Adam Peterson
Defense Independent ERA |
|---|
| Career | 5.46 | 5.04 | 5.34 |
| Season Avg. | 5.46 | 5.04 | 5.34 |
| 162 Game Avg. | 5.46 | 5.04 | 5.34 |
| More Info | See More | See More | See More |
Adam Peterson ERA Per Season
Adam Peterson's ERA for each season of his MLB career, plotted against that year's league average. Switch between comparisons — American League, Hall of Fame, SP, North America, or players born in the same country — to see how he stacked up year by year.
Adam Peterson ERA by Team
Adam Peterson's career ERA totals broken down by each team he played for, ordered by when he first joined that team.
Adam Peterson ERA Year-Over-Year Change
A waterfall chart tracking how Adam Peterson'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.
Adam Peterson ERA Distribution vs. Comparable Players
Each box summarizes Adam Peterson'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.
Adam Peterson ERA — Season-by-Season Breakdown
Every season of Adam Peterson'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.
