The Answer:
The Polo Grounds was home field to the Giants (1911-57), Yankees
(1913-22) and Mets (1962-63) at one time or another. It owed its name
to the area of Manhattan
north of Central Park where polo matches were held before baseball
took over in the late 1800s.
The Polo Grounds you're referring to was actually the fourth
building of the same name built on that site. The distance to the
outfield wall from home plate was the following (measured in feet):
279 (left line), 447 (left), 455 (left-center), 483 (center), 475
(right-center), 440 (right), and 258 (right line).
It was a huge stadium built on a filled-in portion of the Harlem
River. The last game played there was on Sept. 18, 1963 and it was
demolished in 1964, using the same wrecking ball that leveled the
Brooklyn Dodgers' Ebbets Field.
Today it is the site of Polo Ground Towers—four 30-story
apartment buildings—and an asphalt playground called Willie Mays
Field.
Here are links to more information on this topic:Baseball history; Ballparks and Arenas; and
Ballparks,
by Munsey and Suppes.
—The Editors
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