Trinity Rodman's moment of magic in extra time was enough for the United States to see off Japan and progress to the Olympic semi-finals.
The two sides laboured in the first half, with Emma Hayes' team enjoying plenty of possession but struggling to create any meaningful chances at the Parc des Princes.
The USA improved after the break and their first decent opportunity arrived in the 63rd minute when Mallory Swanson exchanged a one-two before curling an effort just wide.
Rodman's influence grew as the game wore on, but it was Sophia Smith who had the best chance prior to the USA's winner, only for the 23-year-old to take too many touches when through on goal, allowing Ayaka Yamashita to close down the angle.
But as penalties approached, Rodman stepped up in the second minute of stoppage time at the end of the first half of the additional 30 minutes, collecting Crystal Dunn’s pass before cutting inside and curling in an unstoppable shot.
Japan substitute Riko Ueki almost equalised from close range, but the USA were able to clear their lines and hold firm to tee up a semi-final against either Canada or Germany.
Data debrief: USA fail to convert possession into opportunities
Despite neither side creating much in the way of chances with the USA mustering an expected goals (xG) of 0.68 to Japan's 0.53, the Americans dominated the ball for large swathes of the match.
They had 71.3% possession, had more than double the passes and final third entries of Japan with 1,026 to 403 and 89 to 44 respectively.
But it ultimately took a moment of brilliance from Rodman to settle the contest. At 22 years and 75 days old, she is the youngest player to score an extra-time goal for the USWNT since Heather O'Reilly at the 2004 Olympics in Athens.
Durant makes Olympics history as USA steamroll into semi-finals
Kevin Durant became the United States' all-time leading scorer at the Olympic Games in a 122-87 rout over Brazil to reach the semi-finals on Tuesday.
He added 11 points for Team USA in just 21 minutes, surpassing Lisa Leslie's tally of 488 to make him the top-scorer of any American basketball player, male or female, at the Games.
Joel Embiid, greeted by a chorus of boos from the French fans after passing on the chance to play for their national team, was the star though, as he got 14 points and seven rebounds in the first half to set the USA on their way to victory.
LeBron James also orchestrated the game, for 12 minutes at least, making snapshot passes as he piled up nine assists and 12 points. However, his game came to an early end when he took an elbow to the face from Georginho De Paula.
Devin Booker top scored for the USA with 18 points as they shared the load, and though Bruno Caboclo got 24 points for Brazil, he could not inspire a shock upset against the reigning champions.
Steve Kerr's team are chasing a fifth consecutive gold medal but will have to face Serbia, who they beat in their competition opener, for a place in the final.
Brazil 4-2 Spain: Selecao through to Olympics final with resounding win
Brazil cruised into the final of the Olympic Games with a 4-2 victory over Spain at the Orange Velodrome on Tuesday.
Salma Paralluelo netted two late consolations, but the damage was already done as Irena Paredes' own goal, Gabi Portilho, Adriana and Kerolin denied the world champions a place in the gold-medal match.
Brazil were still without legend Marta after she lost her appeal over a two-game ban, but her team-mates ensured she would bow out of Olympics action with the chance to play for the top prize.
Spain were behind after just six minutes as Cata Coll's poor clearance struck the unfortunate Paredes on the side to send it cannoning over the line.
La Roja struggled to gain a foothold, and Brazil doubled their advantage on the stroke of half-time thanks to Portilho's composure when one-on-one with Coll.
Adriana made sure of their progress off the bench in the 71st minute – she struck the bar but was then on hand to head Portilho's nod-down in from close range.
That sparked Spain into life and Paralluelo's looping header snuck in at the far post before Alexia Putellas rattled the crossbar and forced Lorena into a smart stop to slow down the comeback attempts.
Kerolin delivered the hammer blow in the opening seconds of stoppage time by sliding her low shot through Coll's legs, though Paralluelo would have the last say, poking in her second of the match from close range in the 112th minute.
Data Debrief: World champions denied
Spain were aiming to become the first side to win Olympic gold after lifting the Women's World Cup, but they just fell short at the final hurdle after being outplayed.
La Roja's late flurry of chances meant they finished with more shots than Brazil (26 to their 17) and more on target (11 compared to seven).
Brazil's dominance showed in other ways though, as they created an expected goals (xG) of 3.27 and had a total of six big chances, as they secured a meeting with the United States in the final on Saturday.
St. Lucia’s Alfred adds 200m silver to 100m gold; USA’s Thomas claims first Olympic title
St. Lucia’s Olympic 100m champion Julien Alfred continued her brilliant showing at the Paris Games with silver in the final of the Women’s 200m at the Stade de France on Monday.
The 23-year-old recovered from a less than ideal start with a strong finish to cross the line second in 22.08.
Gold went to American Gabby Thomas who ran 21.82 while another American, Brittany Brown, took bronze in 22.20.
Great Britain’s Dina Asher-Smith and Daryll Neita ran 22.22 and 22.23, respectively for fourth and fifth while Nigeria’s Favour Ofili ran 22.24 in sixth.
American McKenzie Long (22.42) and Ivory Coast’s Jessika Gbai (22.70) rounded out the top eight.
SportsMax is the Caribbean sports channel of choice, committed to providing sporting content of the highest quality to the Caribbean, delivered by a team of highly innovative, passionate and qualified professionals.
(876) 619-7629
digitalmedia@sportsmax.tv
