How Roy Lee Jackson's Win Percentage Compares to Similar Players
Roy Lee Jackson posted a career Win Percentage of 45.16, near the relief pitcher average of 49.61 — a profile that tracked closely with league norms. His best Win Percentage season came in 1979, posting 100.0, well above the relief pitcher average of 48.87 that year. The lowest point came in 1977 at .000, well below the relief pitcher average of 51.33 that year. Production slipped through the final seasons. The figure moved from 46.67 in 1984 to 40.0 in 1985 and .000 in 1986. The decline marked the closing chapter of the career. Significant season-to-season variance characterizes the Win Percentage profile — ranging from .000 to 100.0 — though the career average tracked near league norms.
Roy Lee Jackson Lifetime Win Percentage
Stats similar to Win Percentage for Roy Lee Jackson
| Roy Lee Jackson
Win Percentage |
|---|
| Career | 45.16 |
| Season Avg. | 45.16 |
| 162 Game Avg. | 45.16 |
| More Info | See More |
Roy Lee Jackson Win Percentage Per Season
Roy Lee Jackson's Win Percentage for each season of his MLB career, plotted against that year's league average. Switch between comparisons — American League, Hall of Fame, RP, North America, or players born in the same country — to see how he stacked up year by year.
Roy Lee Jackson Win Percentage by Team
Roy Lee Jackson's career Win Percentage totals broken down by each team he played for, ordered by when he first joined that team.
Roy Lee Jackson Win Percentage Year-Over-Year Change
A waterfall chart tracking how Roy Lee Jackson's career Win Percentage 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.
Roy Lee Jackson Win Percentage Distribution vs. Comparable Players
Each box summarizes Roy Lee Jackson's seasonal Win Percentage 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.
Roy Lee Jackson Win Percentage — Season-by-Season Breakdown
Every season of Roy Lee Jackson's MLB career with Win Percentage 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.
