Running Tip #1. You should adapt your training based on the race course. If there are hills, eat hill repeats for breakfast with a side of gels. Increase your cadence and shorten your stride as you climb. Let your body loose on downhills while catching your breath. If there are turns, run tangents better than Pythagoras would.
The NYC marathon is deceptively hilly with 4 bridges and a gradual but grueling climb up 5th Ave before you hit Central Park. Make an effort to train the course for mental and physical confidence on race day!