I see the hitter when he’s moved in the box, like when he’s moved closer to the plate or changed his stance. I see when the batter has moved his feet, and then I make my own adjustment.
In an effort to speed up the pace of the game, in 1955, Major League Baseball announced a new rule that required a pitcher to deliver his pitch within 20 seconds of taking a pitching position.
By today’s rules, that time limit is down to twelve seconds:
When the bases are unoccupied, the pitcher shall deliver the ball to the batter within 12 seconds after he receives the ball. Each time the pitcher delays the game by violating this rule, the umpire shall call Ball. The 12-second timing starts when the pitcher is in possession of the ball and the batter is in the box, alert to the pitcher. The timing stops when the pitcher releases the ball.
The intent of this rule is to avoid unnecessary delays. The umpire shall insist that the catcher return the ball promptly to the pitcher, and that the pitcher take his position on the rubber promptly. Obvious delay by the pitcher should instantly be penalized by the umpire.
“2012 Edition: Official Baseball Rules.” MLB.com. Commissioner of Baseball, 2011. Web. Accessed 24 January 2014. http://mlb.mlb.com/mlb/downloads/y2012/Official_Baseball_Rules.pdf
A pitcher’s Earned Run Average (or ERA) is the average number of earned runs that a pitcher gives up per nine innings pitched (as the typical game lasts nine innings).
An earned run is a run that is not scored as the result of a defensive error, such as a fielding error or a passed ball.
A pitcher’s ERA is calculated by dividing the number of earned runs he has allowed by the number of innings he has pitched, then multiplying by nine. For example, if a pitcher is charged with 21 earned runs over the course of 90 innings pitched, his ERA would be 2.10.
(21/90) x 9 = 2.1
An ERA under 3.00 is generally considered to be excellent. The lower a pitcher’s ERA, the better.
The lowest all-time career ERA in baseball history was 1.82, by Ed Walsh, who pitched from 1904 to 1917. The lowest career ERA during the live-ball era (that is, post-1920), belongs to Mariano Rivera, who pitched from 1995-2013 and posted an ERA of 2.21.