How Jack Armstrong's Walks Allowed Per 9 Innings Compares to Similar Players
Jack Armstrong posted a career Walks Allowed Per 9 Innings of 3.65, above the starting pitcher average of 3.1 — a level that fell short of typical league production. His strongest Walks Allowed Per 9 Innings season came in 1990, posting 3.2, near the starting pitcher average of 3.1 that year. The highest point came in 1988 at 5.23, well above the starting pitcher average of 2.95 that year. Output was consistent through the final seasons. The figure moved from 3.48 in 1991 to 3.62 in 1992 and 3.58 in 1993. The consistent output characterized his final seasons. Some season-to-season variance runs through the career line, but the career average fell below league norms across 6 seasons.
Jack Armstrong Lifetime Walks Allowed Per 9 Innings
Stats similar to Walks Allowed Per 9 Innings for Jack Armstrong
| Jack Armstrong
Walks Allowed Per 9 Innings |
|---|
| Career | 3.65 |
| Season Avg. | 3.65 |
| 162 Game Avg. | 3.65 |
| More Info | See More |
Jack Armstrong Walks Allowed Per 9 Innings Per Season
Jack Armstrong's Walks Allowed Per 9 Innings for each season of his MLB career, plotted against that year's league average. Switch between comparisons — National League, Hall of Fame, SP, North America, or players born in the same country — to see how he stacked up year by year.
Jack Armstrong Walks Allowed Per 9 Innings by Team
Jack Armstrong's career Walks Allowed Per 9 Innings totals broken down by each team he played for, ordered by when he first joined that team.
Jack Armstrong Walks Allowed Per 9 Innings Year-Over-Year Change
A waterfall chart tracking how Jack Armstrong's career Walks Allowed Per 9 Innings 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.
Jack Armstrong Walks Allowed Per 9 Innings Distribution vs. Comparable Players
Each box summarizes Jack Armstrong's seasonal Walks Allowed Per 9 Innings 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.
Jack Armstrong Walks Allowed Per 9 Innings — Season-by-Season Breakdown
Every season of Jack Armstrong's MLB career with Walks Allowed Per 9 Innings 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.
