How Jack Russell's ERA Compares to Similar Players
Jack Russell posted a career ERA of 4.46, above the starting pitcher average of 3.87 — a level that fell short of typical league production. His strongest ERA season came in 1940, posting 2.5, well below the starting pitcher average of 4.16 that year. The highest point came in 1937 at 7.59, well above the starting pitcher average of 4.26 that year. The ERA trended upward through the final seasons. The figure moved from 3.34 in 1938 to 3.67 in 1939 and 2.5 in 1940. The upward arc continued through his final campaign. Significant season-to-season variance characterizes the ERA profile — ranging from 2.5 to 7.59 — though the career average fell below league norms.
Jack Russell Lifetime ERA and Similar Stats
Stats similar to ERA for Jack Russell
| Jack Russell
ERA | Jack Russell
Component ERA | Jack Russell
Defense Independent ERA |
|---|
| Career | 4.46 | 4.31 | 4 |
| Season Avg. | 4.46 | 4.31 | 4 |
| 162 Game Avg. | 4.46 | 4.31 | 4 |
| More Info | See More | See More | See More |
Jack Russell ERA Per Season
Jack Russell's ERA for each season of his MLB career, plotted against that year's league average. Switch between comparisons — American League, Hall of Fame, SP, North America, or players born in the same country — to see how he stacked up year by year.
Jack Russell ERA by Team
Jack Russell's career ERA totals broken down by each team he played for, ordered by when he first joined that team.
Jack Russell ERA Year-Over-Year Change
A waterfall chart tracking how Jack Russell'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.
Jack Russell ERA Distribution vs. Comparable Players
Each box summarizes Jack Russell'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.
Jack Russell ERA — Season-by-Season Breakdown
Every season of Jack Russell'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.
