This year, I did an experiment. I did not stay in Manhattan, as the prices of hotels for a week are more than my monthly mortgage. So, I stayed in Newark, NJ, and used some hotel points. Taking Lyft, Uber into Manhattan was a good deal, and I made all of my meetings and events on Saturday.
Sunday, I was concerned. I paid a little more, hired a local taxi and left about 7 AM. We arrived at 8th Avenue and 57th at 8:02 AM, and from there, a nice fifteen minute walk Up Central Park Avenue to 67th and the entrrance to the Media Center for the marathon.