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In page New York City Half Marathon:

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In October 2017, New York Road Runners announced a course change for the 2018 race.[1] The course begins in Prospect Park and heads northwest along Flatbush Avenue, and then crosses the Manhattan Bridge. Runners then proceed through the Lower East Side towards FDR Drive, and exit onto 42nd Street. At Times Square, the course heads north on Seventh Avenue into Central Park. Runners follow the main loop in Central Park clockwise, cut across the park on the 102nd Street Transverse, and then finish near 75th Street on the west side of the park.