There is no limitation to the number of innings a Baseball game can be played. In theory, the game could go on forever as long as the teams are tied at the end of an inning. The longest professional game I have heard of is a 33 inning game between Pawtucket and Rochester of the International League (minor leagues) in 1981. The longest MLB game was 26 innings between Brooklyn and Boston in 1920.
Eccentric major league pitcher Steven John "Turk" Wendell would brush his teeth between innings.
9 in major leagues
In 1962, the NL ERA was 3.94 (6,345 earned runs in 14,490 innings pitched) and the AL ERA was 3.97 (6,402 earned runs in 14515 innings pitched) for an MLB average of 3.9553.
The major league pitcher with the highest ERA in a single season who pitched 100 or more innings was Bill Chamberlain. He recorded an ERA of 7.74 in the 1893 season while playing for the St. Louis Browns.
In Major League Baseball, a quality start is when a starting pitcher completes at least 6 innings and allows no more than 3 earned runs. This is considered a good performance by the pitcher.
In Major League Baseball, a quality start is when a starting pitcher completes at least six innings and allows three or fewer earned runs.
5-7 innings
It stands for Walks/Hits innings pitched. It is pretty much a stat that shows on average how many base runners a pitcher will allow per inning pitched.
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There is no limit in regards to how many innings a Starting Pitcher must pitch in the Major League Baseball All Star game, a team can be winning and the Starting Pitcher could pitch only 2 innings but because All Star games have different rules, they can be given the Win.
The Red Sox record is 45 shutout innings by Cy Young of the 1904 team. During this streak he pitched 25 1/3 hitless innings, still a major league record. The American League record for shutout innings is 56 by Walter Johnson of the 1913 Washington Senators.
The average height of a Major League Baseball Player is 5'10".