baseball statistics Baseball statistics play an important role in evaluating the progress of a player or team. Since the flow of a baseball game has natural breaks to it, and normally players act individually rather than performing in clusters, the sport lends itsel ...

, hits per nine innings (denoted by H/9) is the average number of hits allowed by a

pitcher In baseball, the pitcher is the player who throws ("pitches") the baseball from the pitcher's mound toward the catcher to begin each play, with the goal of retiring a batter, who attempts to either make contact with the pitched ball or draw ...

in a nine inning period; calculated as: (hits allowed x 9) /

innings pitched In baseball, innings pitched (IP) are the number of innings a pitcher has completed, measured by the number of batters and baserunners that are put out while the pitcher is on the pitching mound in a game. Three outs made is equal to one innin ...

. This is a measure of a pitcher's success based on the number of all outs he records. Compared to a pitcher's

batting average against In baseball statistics, batting average against (denoted by BAA or AVG), also known as opponents' batting average (denoted by OBA), is a statistic that measures a pitcher's ability to prevent hits during official at bats. It can alternatively b ...

, a pitcher's H/9 benefits from

sacrifice bunt In baseball, a sacrifice bunt (also called a sacrifice hit) is a batter's act of deliberately bunting the ball, before there are two outs, in a manner that allows a baserunner to advance to another base. The batter is almost always put out, and ...

double play In baseball and softball, a double play (denoted as DP in baseball statistics) is the act of making two outs during the same continuous play. Double plays can occur any time there is at least one baserunner and fewer than two outs. In Major Leag ...

s, runners

caught stealing In baseball, a runner is charged, and the fielders involved are credited, with a time caught stealing when the runner attempts to advance or lead off from one base to another without the ball being batted and then is tagged out by a fielder whil ...

, and outfield assist, but it is hurt by some errors. Unlike batting average against, a pitcher's H/9 benefits from outs that are not related to official at bats, as they are recorded on runners after they have reached base. ,

Nolan Ryan Lynn Nolan Ryan Jr. (born January 31, 1947), nicknamed "the Ryan Express", is an American former professional baseball pitcher and sports executive. Over a record 27-year playing career in Major League Baseball (MLB) spanning four decades, Ryan ...

is the career leader (6.5553),

Sandy Koufax Sanford Koufax (; born Sanford Braun; December 30, 1935) is an American former left-handed pitcher in Major League Baseball (MLB) who played his entire career for the Brooklyn/Los Angeles Dodgers from 1955 to 1966. He has been hailed as one of t ...

is #2 (6.7916),

Clayton Kershaw Clayton Edward Kershaw (born March 19, 1988) is an American professional baseball pitcher for the Los Angeles Dodgers of Major League Baseball (MLB) . He has played for the Dodgers for the entirety of his MLB career. A left-handed starting p ...

is #3 (6.8160).

References

Pitching statistics {{Baseball-stub

See also

References