How Jeff Duncan's Gross Production Average (GPA) Compares to Similar Players

Jeff Duncan posted a career Gross Production Average (GPA) of .181, well below the league average of .246 — production that significantly underperformed against league baselines. Across 2 seasons, the Gross Production Average (GPA) arc showed a disappointing start, with limited data making longer-term conclusions premature. With 2 seasons of data, the Gross Production Average (GPA) arc was below league norms — too limited for reliable trend analysis. Significant season-to-season variance characterizes the Gross Production Average (GPA) profile — ranging from .073 to .192 — though the career average remained well below league norms.

Jeff Duncan Lifetime Gross Production Average (GPA)

Stats similar to Gross Production Average (GPA) for Jeff Duncan
Jeff Duncan
Gross Production Average (GPA)
Career0.181
Season Avg.0.181
162 Game Avg.0.181
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Jeff Duncan Gross Production Average (GPA) Per Season

Jeff Duncan's Gross Production Average (GPA) for each season of his MLB career, plotted against that year's league average. Switch between comparisons — National League, Hall of Fame, CF, North America, or players born in the same country — to see how he stacked up year by year.
Jeff Duncan Gross Production Average (GPA) per season line chart

Jeff Duncan Gross Production Average (GPA) by Team

Jeff Duncan's career Gross Production Average (GPA) totals broken down by each team he played for, ordered by when he first joined that team.
Jeff Duncan career Gross Production Average (GPA) by team bar chart

Jeff Duncan Gross Production Average (GPA) Year-Over-Year Change

A waterfall chart tracking how Jeff Duncan's career Gross Production Average (GPA) 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.
Jeff Duncan Gross Production Average (GPA) year-over-year waterfall chart

Jeff Duncan Gross Production Average (GPA) Distribution vs. Comparable Players

Each box summarizes Jeff Duncan's seasonal Gross Production Average (GPA) 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.
Jeff Duncan Gross Production Average (GPA) distribution box chart versus comparable players

Jeff Duncan Gross Production Average (GPA) — Season-by-Season Breakdown

Every season of Jeff Duncan's MLB career with Gross Production Average (GPA) 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.
Jeff Duncan Gross Production Average (GPA) season-by-season breakdown table