The Associated Press Folarin Balogun (20) of the U.S. celebrates scoring his side’s third goal against Paraguay.

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.

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.

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.

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. But the Americans were a team transformed while playing in new coach Mauricio Pochettino’s more creative system in front of a passionate, star-studded Los Angeles crowd of 70,492.

Maurício scored in the second half for Paraguay, but La Albirroja fell too far behind early in their first World Cup match in 16 years.

After the U.S. went ahead on an early own-goal created by Pulisic’s playmaking, Balogun scored in the 31st minute and again in the fifth minute of first-half injury time.