Greg Marius Court at Holcombe Rucker Park is a basketball court at the border of Harlem and the Coogan's Bluff section of Washington Heights neighborhoods of Manhattan, at 155th Street and Frederick Douglass Boulevard, just east of the former Polo Grounds site. It is geographically at the base of a large cliff named Coogan's Bluff. Rucker Park has play…Greg Marius Court at Holcombe Rucker Park is a basketball court at the border of Harlem and the Coogan's Bluff section of Washington Heights neighborhoods of Manhattan, at 155th Street and Frederick Douglass Boulevard, just east of the former Polo Grounds site. It is geographically at the base of a large cliff named Coogan's Bluff. Rucker Park has played a pivotal role in basketball history, serving as the birthplace of New York City's first summer tournament in 1950 and evolving into a proving ground where amateur and professional talent have showcased their skills, influencing the culture and style of the game worldwide. Many who have played at the park in the Rucker Tournament, later named the Entertainer's Basketball Classic achieved a level of fame for their abilities, whether as streetball icons who built their legacies on the asphalt, rising talents who used the park as a stepping stone, or established National Basketball Association players who returned to test their skills in its electrifying atmosphere.