The Americans captured the opening session at the Presidents Cup on Thursday, a solid start in their quest to maintain their dominance in this biennial event.

But it took a great save from a plugged lie in the bunker by Steve Stricker in the final fourball match on the course to give the U.S. a 3½-2½ lead at Muirfield Village in Dublin, Ohio. The International team refused to be spooked from trailing early in every match.

Ernie Els didn't make a birdie until the 17th hole, but his 12-footer extended the match to 18. The Internationals looked as if they might win the last hole with a par when Jordan Spieth drove into the water and Stricker's approach plugged into the face of the bunker.

He blasted out to 3 feet, and Brenden de Jonge missed his 18-foot birdie putt to end a wild day.

"You don't want anybody else to have to get that up-and-down other than Steve Stricker," the 20-year-old Spieth said. "It was incredible."

That wasn't the only highlight.

Masters champion Adam Scott chipped in for eagle on the 15th hole, and Hideki Matsuyama holed a 10-foot birdie putt on the next hole to square their match against Bill Haas and Webb Simpson. Haas answered with an 18-foot birdie putt to go 1 up, only for the 21-year-old Japanese star to hit his 8-iron approach from 168 yards to 2 feet for birdie on the 18th to halve the match.

In the shortest match of the day, Americans Tiger Woods and Matt Kuchar routed Angel Cabrera and Marc Leishman 5 and 4.

The Americans bolted out to a big start and were ahead in all six matches early. But then the round was stopped for 1½ hours because of thunderstorms.

LPGA Tour: Jessica Korda and Na Yeon Choi shot 9-under 64s to share a four-stroke lead at the inaugural Reignwood LPGA Classic in Beijing. Stacy Lewis, Hee Young Park and Hee Kyung Seo were tied for third.