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Posted By: Bob Pomilla

From Wikipedia:

"Duffy's Cliff"


From 1912 to 1933, there was a 10-foot-high incline in front of the then 25-foot high left field wall at Fenway Park, extending from the left-field foul pole to the center field flag pole. As a result, a left fielder in Fenway Park had to play part of the territory running uphill (and back down). Boston's first star left fielder, Duffy Lewis, mastered the skill so well that the area became known as "Duffy's Cliff".


The incline served two purposes:

it was a support for a high wall; and

it was built to compensate for the difference in grades between the field and Lansdowne Street on the other side of that wall.



It also served as a spectator-friendly seating area during the dead-ball era when overflow crowds would sit on the incline behind ropes. It is often compared to the infamous left field "terrace" at Cincinnati's Crosley Field, but, in truth, the 15-degree all-grass incline there served an entirely different purpose: as an alternative to an all dirt warning track found in most other ballparks. It was a natural feature of the site on which Crosley Field and its predecessors were located; slightly less severe inclines were deliberately built in center and right fields to compensate. The incline in centerfield of Minute Maid Park is a tribute to Duffy's Cliff.


As part of the 1934 remodeling of the ballpark, the bleachers and the wall itself, Red Sox owner Tom Yawkey arranged to flatten the ground along the base of the wall, so that Duffy's Cliff no longer existed, and thus became part of the lore of Fenway Park. Thus the base of the left field wall is several feet below the grade level of Lansdowne Street, accounting for the occasional rat that might spook the scoreboard operators. ("The Fenway Project", ISBN 1-57940-091-4.)


For decades there was considerable debate about the true left field distance, which was posted as 315 feet (96 m). For years, Red Sox officials refused to remeasure the distance. Reportedly, the Boston Globe was able to sneak into Fenway Park and remeasure the line. When the paper's evidence was presented to the club in 1995, the line was finally remeasured by the Red Sox and truly restated at 310 feet (94.5 m). The companion 96 meters sign remained unchanged, until 1998, when it was finally corrected to 94.5 meters. A theory about the incorrect foul line distance is the former 315 ft (96 m) measurement came from the Duffy's Cliff days. That measurement likely included the severity of the incline, and when the mound was leveled, the distance was never corrected. A quick study of the geometry of "Duffy's Cliff" suggests that the theory has merit. Regardless of the posted distance, frustrated pitchers will always argue that "The Green Monster" is closer than the sign says.