How Masahide Kobayashi's ERA Compares to Similar Players

Masahide Kobayashi posted a career ERA of 5.1, well above the relief pitcher average of 3.96 — production that significantly underperformed against league baselines. Across 2 seasons, the ERA arc showed a disappointing start, with limited data making longer-term conclusions premature. With 2 seasons of data, the ERA arc was below league norms — too limited for reliable trend analysis. Significant season-to-season variance characterizes the ERA profile — ranging from 4.53 to 8.38 — though the career average remained well below league norms.

Masahide Kobayashi Lifetime ERA and Similar Stats

Stats similar to ERA for Masahide Kobayashi
Masahide Kobayashi
ERA
Masahide Kobayashi
Component ERA
Masahide Kobayashi
Defense Independent ERA
Career5.15.014.71
Season Avg.5.15.014.71
162 Game Avg.5.15.014.71
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Masahide Kobayashi ERA Per Season

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

Masahide Kobayashi ERA by Team

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

Masahide Kobayashi ERA Year-Over-Year Change

A waterfall chart tracking how Masahide Kobayashi'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.
Masahide Kobayashi ERA year-over-year waterfall chart

Masahide Kobayashi ERA Distribution vs. Comparable Players

Each box summarizes Masahide Kobayashi'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.
Masahide Kobayashi ERA distribution box chart versus comparable players

Masahide Kobayashi ERA — Season-by-Season Breakdown

Every season of Masahide Kobayashi'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.
Masahide Kobayashi ERA season-by-season breakdown table