How Casey Kelly's ERA Compares to Similar Players

Casey Kelly has posted a career ERA of 5.34, well above the starting pitcher average of 3.87 — production that has significantly underperformed against league baselines. His strongest ERA season came in 2025, posting .000, well below the starting pitcher average of 4.16 that year. The highest point came in 2015 at 7.94, well above the starting pitcher average of 4.03 that year. The ERA has trended upward over recent seasons. The figure has moved from 3.04 in 2018 to 5.06 in 2024 and .000 in 2025. The upward arc suggests continued forward momentum heading into 2026. Significant season-to-season variance characterizes the ERA profile — ranging from .000 to 7.94 — though the career average has remained well below league norms.

Casey Kelly Lifetime ERA and Similar Stats

Stats similar to ERA for Casey Kelly
Casey Kelly
ERA
Casey Kelly
Component ERA
Casey Kelly
Defense Independent ERA
Career5.345.774.32
Season Avg.5.345.774.32
162 Game Avg.5.345.774.32
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Casey Kelly ERA Per Season

Casey Kelly's ERA 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.
Casey Kelly ERA per season line chart

Casey Kelly ERA by Team

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

Casey Kelly ERA Year-Over-Year Change

A waterfall chart tracking how Casey Kelly'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.
Casey Kelly ERA year-over-year waterfall chart

Casey Kelly ERA Distribution vs. Comparable Players

Each box summarizes Casey Kelly'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.
Casey Kelly ERA distribution box chart versus comparable players

Casey Kelly ERA — Season-by-Season Breakdown

Every season of Casey Kelly'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.
Casey Kelly ERA season-by-season breakdown table