How Roberto Rivera's ERA Compares to Similar Players
Roberto Rivera posted a career ERA of 4.5, above the relief pitcher average of 3.96 — a level that fell short of typical league production. 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. Some season-to-season variance runs through the career line, but the career average fell below league norms across 2 seasons.
Roberto Rivera Lifetime ERA and Similar Stats
Stats similar to ERA for Roberto Rivera
| Roberto Rivera
ERA | Roberto Rivera
Component ERA | Roberto Rivera
Defense Independent ERA |
|---|
| Career | 4.5 | 5.71 | 5.58 |
| Season Avg. | 4.5 | 5.71 | 5.58 |
| 162 Game Avg. | 4.5 | 5.71 | 5.58 |
| More Info | See More | See More | See More |
Roberto Rivera ERA Per Season
Roberto Rivera'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.
Roberto Rivera ERA by Team
Roberto Rivera's career ERA totals broken down by each team he played for, ordered by when he first joined that team.
Roberto Rivera ERA Year-Over-Year Change
A waterfall chart tracking how Roberto Rivera'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.
Roberto Rivera ERA Distribution vs. Comparable Players
Each box summarizes Roberto Rivera'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.
Roberto Rivera ERA — Season-by-Season Breakdown
Every season of Roberto Rivera'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.
