New York Road Runners (NYRR) is a NYC based running organization that puts on many races throughout the year, and are the main organizers of the NYC Marathon. They produce running events of varying distances, and welcome runners of all types and experience. I ran the Brooklyn R-U-N 5K with this organization a few weeks ago.
They have a modern headquarters in midtown that made pre-race package pick up pretty easy. There is also a wall of history here where you can view NYC running events over the years, and they also offer running classes, tips, and expertise. You can join as a member and receive discounts on their races you sign up for. Continue reading A Warm Summer Run at NYRR Brooklyn R-U-N 5K