How Rogelio Alonso's ERA Compares to Similar Players
Rogelio Alonso posted a career ERA of 6.37, well above the league average of 4.44 — production that significantly underperformed against league baselines. Across 4 seasons, the ERA arc showed a disappointing start, with limited data making longer-term conclusions premature. With 4 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 3.94 to 10.01 — though the career average remained well below league norms.
Rogelio Alonso Lifetime ERA and Similar Stats
Stats similar to ERA for Rogelio Alonso
| Rogelio Alonso
ERA | Rogelio Alonso
Component ERA | Rogelio Alonso
Defense Independent ERA |
|---|
| Career | 6.37 | 5.66 | 4.6 |
| Season Avg. | 6.37 | 5.66 | 4.6 |
| 162 Game Avg. | 6.37 | 5.66 | 4.6 |
| More Info | See More | See More | See More |
Rogelio Alonso ERA Per Season
Rogelio Alonso's ERA for each season of his MLB career, plotted against that year's league average. Switch between comparisons — Negro National League, Hall of Fame, LF, Caribbean, or players born in the same country — to see how he stacked up year by year.
Rogelio Alonso ERA by Team
Rogelio Alonso's career ERA totals broken down by each team he played for, ordered by when he first joined that team.
Rogelio Alonso ERA Year-Over-Year Change
A waterfall chart tracking how Rogelio Alonso'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.
Rogelio Alonso ERA Distribution vs. Comparable Players
Each box summarizes Rogelio Alonso'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.
Rogelio Alonso ERA — Season-by-Season Breakdown
Every season of Rogelio Alonso'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.
