Celebrate the Empire City as the NYRR Manhattan 10K officially joins the NYRR Five Borough Series! Experience something special as you stride toward achieving your 4 Out of 6 and/or 9+1. Test your limits with a full loop around Central Park, tackling Harlem Hill, the Three Sisters, and Cat Hill. Be part of this event on Sunday, February 2, and start training for the United Airlines NYC Half or another spring half marathon or marathon by registering today!