John Cassidy and Marcus Stroman ERA Comparison
About ERA
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)
John Cassidy and Marcus Stroman's ERA Per Season Comparison Line Chart
This bar chart compares John Cassidy's and Marcus Stroman’s ERA for each season
of their Major League careers. The data is displayed by player season number instead of the
season year to allow for better comparisons as the players progressed through their careers.
![placeholder for chart](https://www.jmanesaz.com/img/chart-placeholder.png)
John Cassidy and Marcus Stroman's Per Season ERA Box Plot
This chart attempts to draw a comparison between John Cassidy and Marcus Stroman
by summarizing their ERA for each season they played. 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!
![placeholder for chart](https://www.jmanesaz.com/img/chart-placeholder.png)
John Cassidy and Marcus Stroman's ERA Comparison Data Table
This table shows John Cassidy and Marcus Stroman's ERA statistics by season
for their full MLB careers. Included with the raw season stats are the aggregations’ sum,
average, minimum, maximum, and median. The data is displayed by season number instead of by
calendar year to allow for better comparisons as the players progressed through their careers.
Because not all players have the same career lengths, seasons not completed will display "—"
![placeholder for chart](https://www.jmanesaz.com/img/chart-placeholder.png)