How Zach Day's ERA Compares to Similar Players
Zach Day posted a career ERA of 4.66, well above the starting pitcher average of 3.87 — production that significantly underperformed against league baselines. His strongest ERA season came in 2002, posting 3.62, below the starting pitcher average of 4.34 that year. The highest point came in 2005 at 6.85, well above the starting pitcher average of 4.35 that year. Production slipped through the final seasons. The figure moved from 3.93 in 2004 to 6.85 in 2005 and 6.75 in 2006. The decline marked the closing chapter of the career. Significant season-to-season variance characterizes the ERA profile — ranging from 3.62 to 6.85 — though the career average remained well below league norms.
Zach Day Lifetime ERA and Similar Stats
Stats similar to ERA for Zach Day
| Zach Day
ERA | Zach Day
Component ERA | Zach Day
Defense Independent ERA |
|---|
| Career | 4.66 | 4.68 | 4.74 |
| Season Avg. | 4.66 | 4.68 | 4.74 |
| 162 Game Avg. | 4.66 | 4.68 | 4.74 |
| More Info | See More | See More | See More |
Zach Day ERA Per Season
Zach Day'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.
Zach Day ERA by Team
Zach Day's career ERA totals broken down by each team he played for, ordered by when he first joined that team.
Zach Day ERA Year-Over-Year Change
A waterfall chart tracking how Zach Day'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.
Zach Day ERA Distribution vs. Comparable Players
Each box summarizes Zach Day'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.
Zach Day ERA — Season-by-Season Breakdown
Every season of Zach Day'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.
