The Internationals have charged back into contention ahead of the final day of the Presidents Cup but still trail 11-7 at Quail Hollow in North Carolina.
USA had led 8-2 heading into Saturday's action that included four morning foursome matchups followed by four fourball contests, with Australia’s Cam Davis and South Korean Kim Joo-hyung starring for the under-dog International team.
The Internationals won two of the morning's foursome matchups and three of the fourball contests to make up major ground but will need win 8.5 points from the 12 on offer on the final day with singles to determine the winner.
If the International team win, it would be the greatest last day comeback in Presidents Cup history and their first victory since 1998 in Melbourne, the team's sole triumph.
"I'm almost in tears," Internationals captain Trevor Immelman said. "I'm so proud of these guys. We've fought so hard. We've had to be so patient."
"We’ve got a very long way to go. We know how tough the Americans are in singles. But today was a great day for us. This team has been through a lot."
Debutant Kim Joo-hyung had one of the moments of the day, sinking a 10-foot birdie putt at the 18th hole to clinch a 1up victory with Kim Si-woo against the previously unbeaten Xander Schauffele and Patrick Cantlay.
The South Korean emotionally reveled in victory after the putt, having holed a 54-foot eagle putt on the 11th hole. In a seesawing fourball contest, Schauffele also putted in from 37 feet on the 15th.
Davis, paired with compatriot Adam Scott, was crucial with late putts in their 1up fourball victory over Sam Burns and Billy Horschel.
On the par-five 16th, Davis sunk an 11-foot eagle putt to win the hole, before making a 14-foot birdie putt to claim the 17th. Davis backed that up with a nine-foot birdie putt to tie 18 and secure the win.
The unbeaten Jordan Spieth and Justin Thomas defeated Hideki Matsuyama and Taylor Pendrith 4 and 3 for USA's only fourballs win, while Im Sung-jae and Sebastian Munoz never trailed as they got past Tony Finau and Kevin Kisner 3 and 2.
In the morning's foursomes, Lee Kyoung-hoon and Kim Joo-hyung defeated Scottie Scheffler and Sam Burns 2 and 1 and Adam Scott teamed up with Hideki Matsuyama to knock off Cameron Young and Collin Morikawa 3 and 2.
USA got victories as Spieth and Thomas won against Im and Corey Conners 4 and 3 and Finau and Max Homa beating Kim Si-woo and Davis 4 and 3. Spieth and Thomas are the third duo in Presidents Cup history to go undefeated in the first four rounds.
"We're in a good spot," USA captain Davis Love said. "We have a lot of guys hitting it good. They just made more putts than we did.
"We always feel like we're at an advantage in the singles. We've had some great singles days in the past."