How Mike Sullivan's ERA Compares to Similar Players

Mike Sullivan posted a career ERA of 5.04, well above the relief pitcher average of 3.96 — production that significantly underperformed against league baselines. His strongest ERA season came in 1892, posting 3.08, near the relief pitcher average of 3.21 that year. The highest point came in 1895 at 8.42, well above the relief pitcher average of 4.22 that year. Production slipped through the final seasons. The figure moved from 4.66 in 1896 to 5.09 in 1897 and 5.0 in 1899. The decline marked the closing chapter of the career. Significant season-to-season variance characterizes the ERA profile — ranging from 3.08 to 8.42 — though the career average remained well below league norms.

Mike Sullivan Lifetime ERA and Similar Stats

Stats similar to ERA for Mike Sullivan
Mike Sullivan
ERA
Mike Sullivan
Component ERA
Mike Sullivan
Defense Independent ERA
Career5.045.234.75
Season Avg.5.045.234.75
162 Game Avg.5.045.234.75
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Mike Sullivan ERA Per Season

Mike Sullivan's ERA for each season of his MLB career, plotted against that year's league average. Switch between comparisons — National League, Hall of Fame, RP, North America, or players born in the same country — to see how he stacked up year by year.
Mike Sullivan ERA per season line chart

Mike Sullivan ERA by Team

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

Mike Sullivan ERA Year-Over-Year Change

A waterfall chart tracking how Mike Sullivan'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.
Mike Sullivan ERA year-over-year waterfall chart

Mike Sullivan ERA Distribution vs. Comparable Players

Each box summarizes Mike Sullivan'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.
Mike Sullivan ERA distribution box chart versus comparable players

Mike Sullivan ERA — Season-by-Season Breakdown

Every season of Mike Sullivan'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.
Mike Sullivan ERA season-by-season breakdown table