How Jack Armstrong's Equivalent Average Compares to Similar Players
Jack Armstrong posted a career Equivalent Average of .354, well below the league average of .745 — production that significantly underperformed against league baselines. His best Equivalent Average season came in 1990, posting .419, well below the league average of .744 that year. The lowest point came in 1988 at .227, well below the league average of .710 that year. The Equivalent Average trended upward through the final seasons. The figure moved from .316 in 1991 to .357 in 1993. The upward arc continued through his final campaign. Some season-to-season variance runs through the career line, but the career average remained well below league norms across 6 seasons.
Jack Armstrong Lifetime Equivalent Average
Stats similar to Equivalent Average for Jack Armstrong
| Jack Armstrong
Equivalent Average |
|---|
| Career | 0.354 |
| Season Avg. | 0.354 |
| 162 Game Avg. | 0.354 |
| More Info | See More |
Jack Armstrong Equivalent Average Per Season
Jack Armstrong's Equivalent Average 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.
Jack Armstrong Equivalent Average by Team
Jack Armstrong's career Equivalent Average totals broken down by each team he played for, ordered by when he first joined that team.
Jack Armstrong Equivalent Average Year-Over-Year Change
A waterfall chart tracking how Jack Armstrong's career Equivalent Average 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 Armstrong Equivalent Average Distribution vs. Comparable Players
Each box summarizes Jack Armstrong's seasonal Equivalent Average 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 Armstrong Equivalent Average — Season-by-Season Breakdown
Every season of Jack Armstrong's MLB career with Equivalent Average 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.
