How David Robertson's ERA Compares to Similar Players
David Robertson has posted a career ERA of 2.93, 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 2011, posting 1.08, well below the relief pitcher average of 3.75 that year. The highest point came in 2019 at 5.4, well above the relief pitcher average of 4.45 that year. Production has slipped over the most recent seasons. The figure has moved from 3.03 in 2023 to 3.0 in 2024 and 4.08 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 1.08 to 5.4 — though the career average has remained well above league norms.
David Robertson Lifetime ERA and Similar Stats
Stats similar to ERA for David Robertson
| David Robertson
ERA | David Robertson
Component ERA | David Robertson
Defense Independent ERA |
|---|
| Career | 2.93 | 2.77 | 2.86 |
| Season Avg. | 2.93 | 2.77 | 2.86 |
| 162 Game Avg. | 2.93 | 2.77 | 2.86 |
| More Info | See More | See More | See More |
David Robertson ERA Per Season
David Robertson'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.
David Robertson ERA by Team
David Robertson's career ERA totals broken down by each team he played for, ordered by when he first joined that team.
David Robertson ERA Year-Over-Year Change
A waterfall chart tracking how David Robertson'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.
David Robertson ERA Distribution vs. Comparable Players
Each box summarizes David Robertson'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.
David Robertson ERA — Season-by-Season Breakdown
Every season of David Robertson'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.
