The Green Monster is a popular nickname for the 372 high left field wall at Fenway Park, home to the Boston Red Sox baseball team. The wall is only 310 feet from home plate and is a target for right-handed hitters. The wall was part of the original construction of 1912. It is made of wood and was covered in tin and concrete in 1934 and it was then covered with hard plastic in 1976. A manual scoreboard is set into the wall, despite the name, the Green Monster was not painted green until 1947, before that, it was covered with advertisements. The Monster designation is relatively new, for most of its history it was simply called The Wall. The wall might also reduce the number of home runs due to the barriers relatively close distance to home plate. Fenway is the last of the exceptionally high-walled major league ballparks, relatively high walls in modern ballparks have been constructed for their novelty rather than by necessity, as Fenways wall had been. The Green Monster is famous for preventing home runs on line drives that would clear the walls of other ballparks. A side effect of this is to increase the prevalence of doubles, some left fielders, predominantly those with vast Fenway experience, have become adept at fielding caroms off the wall to throw runners out at second base or hold the batter to a single. With this short distance, many fly balls that could be caught by the fielder in a deeper park rebound off the wall for base hits. And while the wall turns many would-be line-drive homers into doubles it also allows some high yet shallow fly balls to clear the field of play for a home run. During 2001 and 2002, the Green Monsters height record was beaten by the center field wall at Riverfront Stadium in Cincinnati. The entire wall was in play and this new wall was often called The Black Monster. When Riverfront Stadium was demolished in 2002, the Green Monster reclaimed the record, in honor of the famed wall, the Red Sox mascot is a furry green monster named Wally. From 1912 to 1933, there was a 10-foot-high mound that formed an incline in front of the Green Monster and it also served to double as a seating area to handle overflow crowds, another common practice of that era. As a result of the terrace, a fielder in Fenway Park had to play the territory running uphill. Bostons first star left fielder, Duffy Lewis, mastered the skill so well that the area known as Duffys Cliff
The Green Monster as seen from the grandstand section on September 5, 2006. The ladder is visible to the right of the Red Sox Foundation logo.
The original ad-covered Green Monster in 1914, with fan seating in front of the wall's base, atop "Duffy's Cliff" (seen in the distance, nearest the flagpole).
The Green Monster in 1996, seven seasons before seats were added on top.
Duffy Lewis was famous for his ability to handle the Fenway outfield