<p>INGLEWOOD, Calif.— Folarin Balogun scored twice in the Americans' historic three-goal first half, and the U.S. opened its first home World Cup in 32 years with its biggest win in the tournament, a dynamic 4-1 victory over Paraguay on Friday night.</p><p>Christian Pulisic had an assist in a stellar first-half playmaking performance for the Americans, who enthralled their Southern California fans with an aggressive attack while streaking to a 3-0 halftime lead — the team's largest in any World Cup game.</p><p>Gio Reyna ripped another goal in the dying moments of second-half injury time, giving the Americans four goals in a World Cup match for the first time.</p><p>The U.S. scored only three goals combined in its four matches at the Qatar World Cup four years ago, and it had never scored more than three in a World Cup match.