What is Runs Allowed Per 9 Innings ?

Runs allowed are the average number of runs given up by a pitcher or a team's pitchers over a nine inning period. Generally, for Runs Allowed Per 9 Innings, lower is better. (Source)

What is a good Runs Allowed Per 9 Innings?

What does good Runs Allowed Per 9 Innings mean? "Good" baseball stats can be very subjective and mean different things to different people. I have attempted to quantify good and bad by taking season and career stats for MLB pitchers with a minimum number of pitched outs. In this case 100 for career and 50 for a season. To find good and bad within this cohort of players I calculated the first and third quartiles, anything between these quartiles I consider average. This makes up the middle 50% of players. In an example where higher is better for a stat, below the first quartile (bottom 25% of players) would be bad and above the 3rd quartile (top 25% of players) would be good. For stats where lower is better, flip around good and bad.
placeholder for list
placeholder for list
placeholder for list
placeholder for list

Career, Season, and Season Average Runs Allowed Per 9 Innings Records

For my hot take on Runs Allowed Per 9 Innings records most of the same rules apply from the first section. To be considered for my prestigious lists the player must meet a certain threshold of pitched outs. Since this is a Pitching stat to be considered for the career list the player must have over 100 pitched outs, for a season consideration the player must have had 75 pitched outs. Additionally, the player's final game must have been after 1899.
placeholder for list
placeholder for list
placeholder for list

Distribution of Career Runs Allowed Per 9 Innings by Player Generation

placeholder for chart

Distribution of Season Runs Allowed Per 9 Innings by Player Generation

placeholder for chart

Distribution of Career Runs Allowed Per 9 Innings by Player Position

placeholder for chart

Distribution of Season Runs Allowed Per 9 Innings by Player Position

placeholder for chart