Let's have a Memorial Day run! We'll meet up by Lloyd's Carrot Cake. From there, you have the choice of running in Van Cortlandt Park across the street (in groups of 19 or less) or elsewhere in the Bronx.
If you are interested in running the old 6.5 mile Holiday Marathons course, here are some links that you may find useful:
Course on Google Maps
PDF map of Van Cortlandt Park with traced course