How Edwin Diaz's ERA Compares to Similar Players

Edwin Diaz has posted a career ERA of 2.82, well below the relief pitcher average of 3.96 — a mark that ranks among the best of his generation. His strongest ERA season came in 2022, posting 1.31, well below the relief pitcher average of 3.84 that year. The highest point came in 2019 at 5.59, well above the relief pitcher average of 4.45 that year. Production has slipped over the most recent seasons. The figure has moved from 1.31 in 2022 to 3.52 in 2024 and 1.63 in 2025. The slide has continued into 2025, with the production level an open question entering 2026. Significant season-to-season variance characterizes the ERA profile — ranging from 1.31 to 5.59 — though the career average has remained well above league norms.

Edwin Diaz Lifetime ERA and Similar Stats

Stats similar to ERA for Edwin Diaz
Edwin Diaz
ERA
Edwin Diaz
Component ERA
Edwin Diaz
Defense Independent ERA
Career2.822.532.4
Season Avg.2.822.532.4
162 Game Avg.2.822.532.4
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Edwin Diaz ERA Per Season

Edwin Diaz'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, Caribbean, or players born in the same country — to see how he stacked up year by year.
Edwin Diaz ERA per season line chart

Edwin Diaz ERA by Team

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

Edwin Diaz ERA Year-Over-Year Change

A waterfall chart tracking how Edwin Diaz'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.
Edwin Diaz ERA year-over-year waterfall chart

Edwin Diaz ERA Distribution vs. Comparable Players

Each box summarizes Edwin Diaz'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.
Edwin Diaz ERA distribution box chart versus comparable players

Edwin Diaz ERA — Season-by-Season Breakdown

Every season of Edwin Diaz'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.
Edwin Diaz ERA season-by-season breakdown table