Jack Armstrong Career ERA Overview
Jack Armstrong's ERA was 4.58 for his 7-year Major League Baseball career.
1990 was his best season when his ERA was 3.42 and his worst season was 1988
when his ERA was 5.79. Jack Armstrong is middlin' tier compared to similar player cohorts career totals, not clearly beating or
being beat by Y (3.0750522047158), USA (4.3461226399548), Baby Boomers (4.2264623233034), mlb (4.3614031148122), and SP (4.3392668544321) player career averages. See the charts and graphs below that
visualize this information in more detail.
Earned run average (ERA) is a metric that shows how many earned runs on average, a pitcher or team's pitcher, gives up over the course of nine innings. It is calculated by dividing earned runs by innings pitched then multiplying the result by 9. Generally, for ERA, lower is better. (
Source)
Jack Armstrong Lifetime ERA and Similar Stats
Stats similar to ERA for Jack Armstrong
| Jack ArmstrongERA | Jack ArmstrongComponent ERA | Jack ArmstrongDefense Independent ERA |
---|
Career | 4.58 | 4.48 | 4.67 |
Season Avg. | 4.58 | 4.39 | 4.92 |
162 Game Avg. | 4.58 | 4.48 | 4.67 |
More Info | See More | See More | See More |
Jack Armstrong ERA By Year Line Chart
This line chart shows Jack Armstrong's yearly ERA
for each season of his Major League Baseball career. Also included, for comparison,
are yearly player averages for MLB, Hall of Fame players, SP, and players from their
country of birth. For these groups, averages are calculated for each group's performance for the defined year.
Jack Armstrong ERA By Year Change
This waterfall chart attempts to show how Jack Armstrong's career ERA changed per season.
This data is cumulative for each season, each column represents the career ERA Jack Armstrong
had at that season in his career.
Jack Armstrong ERA By Year Box Chart
This chart attempts to draw comparisons between Jack Armstrong and related player groups by summarizing ERA
for each season played by Jack Armstrong. The box represents the middle 50% of the data for each player with the line in the box
being the median value. The whiskers represent the ranges for the top and bottom 25% of the data. Review the spread and
medians to draw your conclusions!
Jack Armstrong ERA Per Season Stats Table
This table shows Jack Armstrong ERA stats per season for his full MLB career with the
aggregations’ sum, average, minimum, maximum, and median. Also included, for comparison, are season
player averages for MLB, Hall of Fame players,
SP, and players from their country of birth. The comparisons are calculated for each
group for each year of Jack Armstrong career.
Note: "—" indicate there were no players
for comparison for a specific year. Most commonly this happens for the hall of fame group where there may
not have been a hall of famer playing that year.