Below are two wonderful images from about 1905 that I found at Shorpy.com, an historical photo archive website. On the left is Highbridge Park and the Harlem River Speedway (the Harlem River Drive today) and dominating the center is the beautiful Washington Bridge. I love the carriages!
Here are two more fascinating photographs of athletic competitions at and nearby the Harlem River during the turn of the last century. Amazing images!