The United States opened defense of its world championship with a 19-3 victory over Scotland at the Federation of International Lacrosse Rathbones World Cup in Guildford, England, on Thursday. A record 25 nations are competing in the World Cup, which dates to 1982 and has been played every four years since 1989. Playing Scotland for the first time since a quarterfinal victory in the 2005 FIL World Cup in Annapolis, the United States got on the board just 56 seconds into the game on a goal by Ally Carey (John Carroll), and Kelly Rabil (Hammond) followed just 43 seconds later with another goal. Rabil and Brooke Griffin (South River) each scored four goals for the Americans, while Marie McCool and Kayla Treanor each had a hat trick. Treanor also had three assists. Carey, a midfielder who helped the U.S. team to a 14-10 advantage on draw controls, was named the Player of the Match. The Americans will play Australia, their longtime rival, today at 10 a.m. Australia, which fell to Canada 9-5 on Thursday, is the only other nation to have beaten the U.S. in World Cup play, and won world championships in 1986 and 2005. The U.S. has won each of the other seven World Cup titles.