How Dave Duncan's Gross Production Average (GPA) Compares to Similar Players
Dave Duncan posted a career Gross Production Average (GPA) of .215, below the league average of .247 — a level that fell short of typical league production. His best Gross Production Average (GPA) season came in 1970, posting .249, near the league average of .242 that year. The lowest point came in 1964 at .156, well below the league average of .236 that year. Production slipped through the final seasons. The figure moved from .209 in 1974 to .197 in 1975 and .190 in 1976. The decline marked the closing chapter of the career. Some season-to-season variance runs through the career line, but the career average fell below league norms across 11 seasons.
Dave Duncan Lifetime Gross Production Average (GPA)
Stats similar to Gross Production Average (GPA) for Dave Duncan
| Dave Duncan
Gross Production Average (GPA) |
|---|
| Career | 0.215 |
| Season Avg. | 0.215 |
| 162 Game Avg. | 0.215 |
| More Info | See More |
Dave Duncan Gross Production Average (GPA) Per Season
Dave Duncan's Gross Production Average (GPA) for each season of his MLB career, plotted against that year's league average. Switch between comparisons — American League, Hall of Fame, C, North America, or players born in the same country — to see how he stacked up year by year.
Dave Duncan Gross Production Average (GPA) by Team
Dave Duncan's career Gross Production Average (GPA) totals broken down by each team he played for, ordered by when he first joined that team.
Dave Duncan Gross Production Average (GPA) Year-Over-Year Change
A waterfall chart tracking how Dave 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.
Dave Duncan Gross Production Average (GPA) Distribution vs. Comparable Players
Each box summarizes Dave 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.
Dave Duncan Gross Production Average (GPA) — Season-by-Season Breakdown
Every season of Dave 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.
