Team USA came top of the medal table at both Rio 2016 and London 2012Ian MacNicol/Getty Images, Matthias Hangst/Getty Images and Jean Catuffe/Getty Images
- Team USA currently tops the medal table with 9 golds so far at the Tokyo Olympics.
- Three have come in swimming, while two gold medalists are teenagers.
- Team USA won 46 golds at both Rio 2016 and London 2012. It was expected to win 40 in Tokyo, according to sports data analysts Gracenote.
Chase Kalisz - Men's swimming, 400 meter individual medley
Kalisz was the first American gold medal winner at the Tokyo Olympics
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America's first gold medal-winner of the Tokyo Olympics was swimmer Chase Kalisz in the men's 400 meter individual medley.
The Marylander pipped compatriot Jay Litherland to gold with a time of 4:09.42 at the Tokyo Aquatics Centre on July 25.
Australian Brendon Smith took bronze.
Lee Kiefer - Women's fencing, individual foil
Lee Kiefer took gold in the women's foil individual
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Lee Kiefer narrowly deafeated Russian Inna Deriglazova in the women's foil individual final to earn her first Olympic medal.
In her second Olympics, Kiefer began by beating the Singaporian Amita Berthier then followed that with a win over Canadian Eleanor Harvey.
In the quarterfinal, Kiefer won 15-11 against Japan's Yuka Ueno to set-up a semi-final tie against Russian Larisa Korobeynikova.
The 27-year-old from Ohio comfortabley defeated Korobeynikova 15-6, before securing gold with a 15-13 win over Deriglazova.
Carissa Moore - Women's surfing
Moore was the first Olympic gold medal winner of surfing
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The first women's Olympic gold for surfing was awarded to American Carissa Moore.
The 28-year-old from Hawaii deafeated South African Bianca Buitendag in the final at Tsurigasaki Beach.
Moore saved her best performance for the final, almost doubling her opponent's score, having comfortably come through the earlier rounds.
Her closest match came in the third round in which she narrowly defeated Peruvian surfer Sofia Mulanovich 10.34 to 9.90.
William Shaner - Men's shooting, 10 meter air rifle
Shaner was just 1.2 points shy of a world record
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On his way to earning a first medal at the games in his career, 20-year-old William Shaner set an Olympic record with a score of 105.8 in the men's 10 meter air rifle.
The shooter from Colorado qualifed third, but saved his best for the final, breaking the Olympic record and scoring just 1.2 points shy of the world record.
The remaining medal places were taken up by Lihao Sheng and Haoran Yang both of China who scored 250.9 and 229.4 respectivley.
Lydia Jacoby - Women's swimming, 100 meter breaststroke
Jacoby turned 17 in February
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Despite being only 17, Lydia Jacoby pulled off one of the upsets of the games when she defeated regining Olympic champion Lilly King in the 100 meter breaststroke.
She also made history becoming the first Olympic gold medalist to come from Alaska, where there is only one Olympic sized pool.
Jacoby finished the race with a time of 1:04.95, 0.27 seconds ahead of South Africa's Tatjana Schoenmaker who came in second.
Anastasija Zolotic - Women's taekwondo, 57kg category
Zolotic began taekwondo when she was seven
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Jacoby is not the only teenager to have won gold for Team USA in Tokyo.
Anastasija Zolotic beat Russian Tatiana Minina in the the women's taekwondo 57kg final at the Makuhari Messe Hall on Sunday to earn the American gold in her first games.
In doing so, the 18-year-old Zolotic, who was born in Florida, became Team USA's first winner of the women's Olympic gold.
"My eight-year-old self was running around the school yard saying I was going to be Olympic champion but she could never have imagined what this moment is like. It's unbelievable. It really hasn't sunk in yet." Zolotic said.
Vincent Hancock - Men's skeet shooting
Hancock has won gold in the past three olympics
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Vincent Hancock made it a hat-trick of back-to-back gold wins when he took top spot in the men's skeet at the Tokyo Olympics.
The 32-year-old has won gold in the same event for the past three Olympics, and set an Olympic record in Tokyo with a score of 59 points, missing just one target in his sixth round of shooting.
The silver went to Denmark's Jesper Hansen with 55, and bronze was earned by Kuwait's Abdullah Alrashidi, who has now competed in seven Olympics.
Amber English - Women's skeet shooting
English won gold by a single shot
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Amber English made it a US clean sweep in skeet, and set an Olympic record during her gold medal run, missing just four targets.
The 31-year-old from Colorado beat Italian Diana Bacosi by a single shot in the final.
English, who also serves as an Army reserve first lieutenant, was competiting in her first Olympics having earned two medals at the 2018 Changwon World Championships.
Brooks Curry, Blake Pieroni, Bowen Becker, Zach Apple and Caeleb Dressel - Men's swimming, 4 x 100 meter freestyle relay
The US beat Italy and Australia to gold
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