Alex Morgan scored a record-tying five goals as the U.S. opened its Women's World Cup campaign with a tournament record 13-0 win over Thailand in Group F on Tuesday.

The pre-tournament favorites and defending champions took it right to Thailand in the opening minutes, with Morgan seeing a goal ruled out for offside inside of 10 minutes.

Minutes later, Morgan's second strike would stand up when she found space in between two Thai defenders and headed home a Kelley O'Hara cross to put the U.S. up 1-0.

Rose Lavelle doubled the lead for the Americans before the 20-minute mark, picking up the ball just inside the attacking third, dribbling to the top of the penalty area and smashing a swerving shot past Thailand keeper Sukanya Chor Charoenying.

A set piece led to the third goal for the U.S. just past 30 minutes as Lindsey Horan hit her close-range shot into the roof of the net and Thailand was lucky to not concede another before the break with Jill Ellis' team continuing to dominate the match and keep their opponents under constant pressure.

"We really just came into this game and really wanted to showcase ourselves and what we've been preparing for and what we've been working on," Morgan said after the match. "I think we did that. Every goal matters in this tournament and that's what we were working on this game."

The U.S. picked up right where it left off in the first half and then some after the break, scoring four goals in just over 10 minutes.

Sam Mewis, who started in midfield after Becky Sauerbrunn was held out for precautionary reasons with an injury, started things off in the 50th minute before Morgan and Lavelle added their second apiece and Julie Ertz scored soon after to make it 7-0.

Morgan completed her third and fourth as the match approached full-time and Megan Rapinoe added another on the counter-attack in between to put the U.S. up 10-0.

Substitute Mallory Pugh then scored to put the U.S. up 11-0 and Morgan added her fifth goal of the night to join countrywoman Michelle Akers as the only two women to score five in a single match at the World Cup.

Veteran Carli Lloyd then added a 13th goal of the night for the U.S. to reach the final scoreline and give the Americans a record for both margin of victory and goals scored, surpassing Germany in 2007 who beat Argentina 11-0.

The group-leading U.S., who had a 39-2 shot advantage to improve to 6-0-2 all-time in World Cup openers, next faces Chile before playing Sweden in its last match before the knockout rounds begin.