GAINESVILLE, Va. — Alison Lee sparked a shirtless caddie celebration by spinning a wedge into the cup for eagle. Andrea Lee holed a bunker shot to set up Rose Zhang’s walk-off eagle one hole later. And Megan Khang paused for 10 seconds to let gravity help her out on a critical birdie putt.

The wait was worth it for the United States, which maintained a four-point lead over Europe in the Solheim Cup on Saturday.

With top-ranked Nelly Korda getting an afternoon break after winning the leadoff point in three consecutive sessions of team matches, U.S. captain Stacy Lewis watched her role players excel, and the Americans concluded a warm, breezy day at Robert Trent Jones Golf Club with a 10-6 advantage.

“They’re playing the way I expected them to play, so I’m not surprised at all,” Lewis said. “But at the same time, to do it on this stage and in these moments and to pull these shots off and to make the putts and to do it with the joy that they’re doing it with, it’s the coolest part to me.”

Punahou School graduate Allisen Corpuz went 1-1 on the day to move to 4-2-1 in two years of Solheim Cup matches.

Corpuz, of Kapolei, takes on Anna Nordqvist of Sweden in her Sunday head-to-head matchup that begins at 3:20 a.m. Hawaii time.

Europe, which has captured the Solheim Cup the last three times, won the last two matches to conclude a 4-4 day. But the team in royal blue and yellow will need its largest comeback in Sunday singles to make it a record four in a row. The U.S. rallied from four points down to win in Germany in 2015.

The U.S. needs 4 1/2 points from a dozen singles matches to win the cup, and Europe needs eight points to retain it. Captain Suzann Pettersen drew inspiration from the European Ryder Cup team's rally from the same deficit to win at Medinah in 2012.

“I was on the opposite side in Germany, and I know what it feels like,” Pettersen said. “Everyone remembers Medinah. I mean, it’s a tough task.”

Lewis has relied on data to find the right combinations, whether keeping Korda and Corpuz together for alternate shot; sending rookie Lauren Coughlin out with three partners; or giving Zhang a comfortable pairing with Andrea Lee, her fellow Stanford Cardinal.

“I know their games backwards and forwards, and it’s allowed me to create some really good pairings,” Lewis said.

Korda and Corpuz fell behind early against Carlota Ciganda and Emily Pedersen but turned it around on the back nine and got a break when Corpuz hit a worm-burner of a fairway wood into the par-5 14th hole that avoided the water and settled within 20 feet. Korda put her hands on her head in disbelief and Lewis gave Corpuz a shoulder rub in the fairway.

Korda holed the putt for eagle, her second in a row on a hole the U.S. has dominated, and she and Corpuz became the first American duo to go 4-0 in foursomes after winning twice last year in Spain.

“The Americans have played unbelievable. I don’t know how many eagles they’ve had. It seems like they’ve had double figures,” Hall of Famer and European assistant captain Laura Davies said. “They’ve just played great golf. Out-putted us at the moment. Deep squad of players. We’ll never say never, but it is going to be very, very difficult to get the cup back.”

A day after transportation problems prevented most fans from getting to the golf course for the opening tee shots, a situation that LPGA Commissioner Mollie Marcoux Samaan took responsibility for, the grandstands surrounding the first tee were full and fans lined the gallery ropes shortly after 7 a.m.

The only thing that kept them quiet was a slow start by the Americans, but it got loud once Korda started rolling.

In the first afternoon better-ball match, Anna Nordqvist and Madelene Sagstrom were 2 down to Khang and Alison Lee when Nordqvist birdied the par-3 11th hole. Khang's tying putt hung on the lip for 10 seconds before dropping, and she confirmed with a rules official that she had not waited too long for the ball to move.

Needing two putts to win the 14th, Khang made her 15-footer for eagle anyway, setting up the latest fist-pumping celebration for the Americans’ loudest cheerleader, who was next to the green in a cowboy hat when Corpuz hit her approach hours earlier.

Khang and Lee closed it out on the next hole for a 4-and-3 victory, Lee's first in a Solheim Cup match since 2015. She gave the U.S. an early lead with her wedge from 86 yards for an eagle 2 on the second hole, and the Americans’ caddies stripped from the waist up and chest-bumped to pay off a bet with Lee that they agreed to on the tee box.

“Literally holed out five minutes after that conversation. Great motivation,” Lee said.

Zhang and Andrea Lee never trailed in their 6-and-4 victory over Linn Grant and Celine Boutier. Zhang, the youngest U.S. player at 21 who had a forgettable Solheim debut last year, joined Korda and Coughlin by winning all three of her matches.

Pettersen benched Leona Maguire, a valuable contributor in the last two Solheim Cups who has played poorly this year, for both sessions. Rookie Albane Valenzuela also sat out all day, while Charley Hull and Pedersen played four matches each.

Hull delivered. The excitable English player hit a 300-yard-plus drive on the par-4 18th to set up a wedge to tap-in range by Esther Henseleit for a 1-up victory in foursomes over Ally Ewing and Jennifer Kupcho, then did it again as she and Georgia Hall beat Corpuz and Lilia Vu 2 up in better ball.

Lexi Thompson improved her record in alternate shot to 7-2-1 in what is likely her final Solheim Cup, teaming with the unbeaten Coughlin to make four birdies in six holes on the back nine and beat Maja Stark and Hall, 4 and 3.

Thompson and Ewing were beaten 2 and 1 by Ciganda and Pedersen in fourballs. Ewing has lost her last six Solheim Cup matches.