<P> The scoreboard was added in 1934 . It forms the lower half of the Green Monster and is still updated by hand from behind the wall throughout the game . The American League scores are also updated from behind the wall . The National League scores need to be updated from the front of the wall between innings . There is also a board which shows the current American League East standings . There are 127 slots in the wall and a team of three score keepers move around two - pound, 13 - by - 16 - inch plates to represent the score . Yellow numbers are used to represent in - inning scores and white numbers are used to represent final inning tallies . The numbers of the current pitchers weigh three pounds and measure 16 by 16 inches . </P> <P> Carlton Fisk's "body English" when he hit his game - winning home run in Game 6 of the 1975 World Series, "waving" the ball fair, was captured on a TV camera stationed in the scoreboard . </P> <P> The Morse Code that appears from top to bottom in the white lines of the American League scoreboard are the initials of former owners Thomas A. Yawkey and Jean R. Yawkey . </P> <P> Fenway's left - field distortion is offset by the odd shape and generous size of right field, which is 302 feet (92 m) (although its actual distance has been disputed over the years) along the line (almost the same as in left), but 380 feet (120 m) at its deepest . The bullpen was added along the right field wall in 1940 to shorten the distance for left - handed slugger Ted Williams' home runs to clear the fence . For years afterward, the bullpens were known as "Williamsburg". </P>

How long is the green monster at fenway park