Frank Keffer ERA

Frank Keffer Career ERA Overview

Frank Keffer's ERA was 5.63 for his 1-year Major League Baseball career. 1890 was his best season when his ERA was 5.63 and his worst season was 1890 when his ERA was 5.63. Frank Keffer underperformed similar player cohorts when comparing career totals, not beating USA (4.3461226399548), Pre-Generational (3.4570995999774), Y (3.0750522047158), mlb (4.3614031148122), and RP (4.3865965377218) 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)

Frank Keffer Lifetime ERA and Similar Stats

Stats similar to ERA for Frank Keffer

	Frank Keffer ERA	Frank Keffer Component ERA	Frank Keffer Defense Independent ERA
Career	5.63	3.58	4.19
Season Avg.	5.63	3.58	4.19
162 Game Avg.	5.63	3.58	4.19
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Frank Keffer ERA By Year Line Chart

This line chart shows Frank Keffer'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, RP, and players from their country of birth. For these groups, averages are calculated for each group's performance for the defined year.

Frank Keffer ERA By Year Change

This waterfall chart attempts to show how Frank Keffer's career ERA changed per season. This data is cumulative for each season, each column represents the career ERA Frank Keffer had at that season in his career.

Frank Keffer ERA By Year Box Chart

This chart attempts to draw comparisons between Frank Keffer and related player groups by summarizing ERA for each season played by Frank Keffer. 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!

Frank Keffer ERA Per Season Stats Table

This table shows Frank Keffer 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, RP, and players from their country of birth. The comparisons are calculated for each group for each year of Frank Keffer 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.