I want to know the answer to the following question:
What city is the Harlem River Speedway in?
All the background I'm provided with is that "According to David Leighton, historical writer for the Arizona Daily Star newspaper, Speedway Boulevard derives its name from an old horse racetrack, known as "The Harlem River Speedway," more commonly called "The Speedway," in New York City.". Is that enough to answer the question?