The original Brooklyn Marathon returns (for one year only?) in the form of the NYCRUNS Prospect Park Marathon! For good measure, we added a half for those of you who want less laps of Prospect Park and an ultra for those of you who want more. The USATF-Certified, Boston Qualifying marathon will comprise 6 full loops and 3 lower loops of the park. We are still determining the exact courses for the half marathon and the 50K, but half marathoners can expect to climb the hill between 2 and 3 times and ultra marathoners can expect to see that hill 2-3 more times than the marathoners. These courses will be certified.