How Dennis Leonard's Win Percentage Compares to Similar Players

Dennis Leonard posted a career Win Percentage of 57.6, above the starting pitcher average of 50.35 — production that kept him consistently ahead of most peers. His best Win Percentage season came in 1975, posting 68.18, well above the starting pitcher average of 50.44 that year. The lowest point came in 1974 at .000, well below the starting pitcher average of 49.98 that year. Production slipped through the final seasons. The figure moved from 66.67 in 1983 to 38.1 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 68.18 — though the career average remained above league norms.

Dennis Leonard Lifetime Win Percentage

Stats similar to Win Percentage for Dennis Leonard
Dennis Leonard
Win Percentage
Career57.6
Season Avg.57.6
162 Game Avg.57.6
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Dennis Leonard Win Percentage Per Season

Dennis Leonard'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, SP, North America, or players born in the same country — to see how he stacked up year by year.
Dennis Leonard Win Percentage per season line chart

Dennis Leonard Win Percentage by Team

Dennis Leonard's career Win Percentage totals broken down by each team he played for, ordered by when he first joined that team.
Dennis Leonard career Win Percentage by team bar chart

Dennis Leonard Win Percentage Year-Over-Year Change

A waterfall chart tracking how Dennis Leonard'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.
Dennis Leonard Win Percentage year-over-year waterfall chart

Dennis Leonard Win Percentage Distribution vs. Comparable Players

Each box summarizes Dennis Leonard'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.
Dennis Leonard Win Percentage distribution box chart versus comparable players

Dennis Leonard Win Percentage — Season-by-Season Breakdown

Every season of Dennis Leonard'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.
Dennis Leonard Win Percentage season-by-season breakdown table