After gathering in the parking lot of Gargiulo’s Italian restaurant in Coney Island, approximately 2,700 people — most of them off-duty cops, their families and friends — watched and cheered, drowning out the screams from the Thunderbolt ride in the background, as officers with the NYPD settled disputes in the boxing ring.

Police officers and sergeants from across the city and from the United Kingdom pummeled one another for three one-minute rounds, their anger and lack of boxing experience both evidenced by wild swings, red faces and stumbling feet.