How Tom Bolton's ERA Compares to Similar Players
Tom Bolton posted a career ERA of 4.56, above the starting pitcher average of 3.87 — a level that fell short of typical league production. His strongest ERA season came in 1990, posting 3.38, below the starting pitcher average of 3.89 that year. The highest point came in 1989 at 8.31, well above the starting pitcher average of 3.76 that year. The ERA trended upward through the final seasons. The figure moved from 5.24 in 1991 to 4.54 in 1992 and 4.47 in 1993. The upward arc continued through his final campaign. Significant season-to-season variance characterizes the ERA profile — ranging from 3.38 to 8.31 — though the career average fell below league norms.
Tom Bolton Lifetime ERA and Similar Stats
Stats similar to ERA for Tom Bolton
| Tom Bolton
ERA | Tom Bolton
Component ERA | Tom Bolton
Defense Independent ERA |
|---|
| Career | 4.56 | 5.04 | 4.31 |
| Season Avg. | 4.56 | 5.04 | 4.31 |
| 162 Game Avg. | 4.56 | 5.04 | 4.31 |
| More Info | See More | See More | See More |
Tom Bolton ERA Per Season
Tom Bolton'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.
Tom Bolton ERA by Team
Tom Bolton's career ERA totals broken down by each team he played for, ordered by when he first joined that team.
Tom Bolton ERA Year-Over-Year Change
A waterfall chart tracking how Tom Bolton'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.
Tom Bolton ERA Distribution vs. Comparable Players
Each box summarizes Tom Bolton'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.
Tom Bolton ERA — Season-by-Season Breakdown
Every season of Tom Bolton'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.
