How Jack Armstrong's Range Factor Compares to Similar Players
Jack Armstrong posted a career Range Factor of 1.14, well below the league average of 3.19 — production that significantly underperformed against league baselines. His best Range Factor season came in 1990, posting 1.21, well below the league average of 3.05 that year. The lowest point came in 1992 at 1.09, well below the league average of 2.98 that year. Output was consistent through the final seasons. The figure moved from 1.19 in 1991 to 1.09 in 1992 and 1.14 in 1993. The consistent output characterized his final seasons. The Range Factor profile has been one of the more consistent of his era — 6 seasons of below-average production with little variance, rather than the volatility that sometimes accompanies a struggling hitter.
Jack Armstrong Lifetime Range Factor
Stats similar to Range Factor for Jack Armstrong
| Jack Armstrong
Range Factor |
|---|
| Career | 1.138 |
| Season Avg. | 1.138 |
| 162 Game Avg. | 1.138 |
| More Info | See More |
Jack Armstrong Range Factor Per Season
Jack Armstrong's Range Factor 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 Range Factor by Team
Jack Armstrong's career Range Factor totals broken down by each team he played for, ordered by when he first joined that team.
Jack Armstrong Range Factor Year-Over-Year Change
A waterfall chart tracking how Jack Armstrong's career Range Factor 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 Range Factor Distribution vs. Comparable Players
Each box summarizes Jack Armstrong's seasonal Range Factor 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 Range Factor — Season-by-Season Breakdown
Every season of Jack Armstrong's MLB career with Range Factor 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.
