How Jim Mason's Range Factor Compares to Similar Players
Jim Mason posted a career Range Factor of 3.78, well above the league average of 3.1 — a mark that ranked among the best of his era. His best Range Factor season came in 1971, posting 7.0, well above the league average of 3.26 that year. The lowest point came in 1979 at 2.49, well below the league average of 3.22 that year. Production slipped through the final seasons. The figure moved from 3.33 in 1977 to 2.57 in 1978 and 2.49 in 1979. The decline marked the closing chapter of the career. Significant season-to-season variance characterizes the Range Factor profile — ranging from 2.49 to 7.0 — though the career average remained well above league norms.
Jim Mason Lifetime Range Factor
Stats similar to Range Factor for Jim Mason
| Jim Mason
Range Factor |
|---|
| Career | 3.776 |
| Season Avg. | 3.776 |
| 162 Game Avg. | 3.776 |
| More Info | See More |
Jim Mason Range Factor Per Season
Jim Mason's Range Factor for each season of his MLB career, plotted against that year's league average. Switch between comparisons — American League, Hall of Fame, SS, North America, or players born in the same country — to see how he stacked up year by year.
Jim Mason Range Factor by Team
Jim Mason's career Range Factor totals broken down by each team he played for, ordered by when he first joined that team.
Jim Mason Range Factor Year-Over-Year Change
A waterfall chart tracking how Jim Mason'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.
Jim Mason Range Factor Distribution vs. Comparable Players
Each box summarizes Jim Mason'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.
Jim Mason Range Factor — Season-by-Season Breakdown
Every season of Jim Mason'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.
