August 3 Tokyo 2020 Olympics news and results

Team USA's Sydney McLaughlin set a world record to win gold in the women's 400 meters hurdles, with a time of 51.46 seconds.

Fellow American Dalilah Muhammad, who won the event at Rio 2016, came second with a time of 51.58 — fast enough to beat the previous world record of 51.90, which McLaughlin set in June.

McLaughlin is the youngest Olympic medal winner in the women’s 400 meters hurdles, at 21 years and 362 days old. She's also the first holder of the world record to win Olympic gold in this event.

Dutchwoman Femke Bol won bronze in 52.03, a European record.

The stunning performances by McLaughlin and Muhammad mirror the result of yesterday's men's 400 meters hurdles final, when gold medalist Karsten Warholm and silver medalist Rai Benjamin both shattered the previous world record in the event.

Just days after winning the silver medal in shot put, American Raven Saunders said on social media that her mother, Clarissa, has died.

Saunders said on Twitter that her mother was her “number one guardian angel.”

She did not say how or when her mother died.

In an Instagram post, Saunders wrote, “Our last conversation was one of the best ever. Mama I know you love me with every fiber in your body.” 

Clarissa Saunders had been at a watch party at Burke High School in Charleston, South Carolina, to watch her daughter compete and was interviewed by CNN affiliate WCSC. 

The United States Olympic and Paralympic Committee and USA Track and Field each posted condolence messages on Twitter.

Saunders was vocal about her battle with depression going into the Tokyo Olympics and said she hoped to help destigmatize the topic of mental health by speaking openly.

"I always felt like in life, trying to reach people — to help people — is really my purpose," she said in an interview with CNN in May.

During the medal ceremony after Saunders won her silver, she raised her arms and formed an “X” on the podium for more than 20 seconds as a protest. According to Saunders, the symbol represented “the intersection of where all people who are oppressed meet.”

She was asked about the moment and said it was for the LGBTQIA+ community, the Black community and people dealing with mental health issues.

Following her bronze medal win on balance beam Tuesday, Simone Biles revealed that her aunt had died during the Olympics.

Biles didn’t compete in four individual finals at the Tokyo Olympics — the all-around individual competition, vault, uneven bars and floor exercise — after withdrawing during the women’s team final, citing mental health concerns.

Ana Marcela Cunha of Brazil won the women’s marathon swimming event, a 10 kilometer race, by less than a second.

Cunha swam the race, the Olympics' longest swim, in 1:59:30.8 to win her first ever Olympic medal. She has been named open water swimmer of the year by the sport's governing body FINA the last three times the award was given.

Dutch swimmer Sharon van Rouwendaal, the gold medalist in 2016, takes silver with a time of 1:59:31.7. Australian Kareena Lee finished just behind Van Rouwendaaal to claim bronze in 1:59:32.5.

Two earthquakes off the coast of Hasaki, Japan, were felt in Tokyo, where the Summer Olympics are currently taking place, according to a CNN correspondent on the ground. 

The quakes occurred at 5:33 a.m. and 5:43 a.m. local time (4:33 p.m. and 4:43 p.m. ET).

According to the US Geological Survey, the earthquakes registered magnitudes 5.8 and 5.1 and occurred about 75 miles offshore at depths of about 6 miles. 

The Japan Meteorological Agency has not issued a tsunami warning. There were no immediate reports of damage or injuries. 

It was a day to remember in the track and field events, with Jamaica's Elaine Thompson-Herah completing a historic sprint double-double and Norway's Karsten Warholm smashing the 400m hurdles world record on his way to gold. 26 gold medals in all were won Tuesday at the Tokyo Olympics. Here are the latest winners who are taking home gold:

Artistic Gymnastics:

Track and Field:

Boxing:

Canoe Sprint

Cycling Track

Diving

Sailing

Weightlifting

Wrestling

Sweden’s Armand "Mondo" Duplantis fell agonizingly short of setting a new world record on the way to securing gold in the men’s pole vault on Tuesday.

The 21-year-old failed on three occasions at the height of 6.19 meters.

Duplantis was bidding to surpass his own world record of 6.18 meters.

The last athlete to win the pole vault Olympic title in a world record was Poland’s Wladyslaw Kozakiewicz at the 1980 Games in Moscow.

Duplantis’s gold was confirmed after he cleared a height of 6.02 meters with his first effort.

He remains the only man to surpass six meters this year.

American Chris Nilsen won the silver medal, and Brazil’s Thiago Braz, who was defending his 2016 Rio title, took bronze.

Poland’s Anita Włodarczyk became the first woman to win a specific individual athletics event three times in a row at the Olympic Games with gold in the women’s hammer throw on Tuesday.

World and Olympic record holder added to her golds at London 2012 and Rio 2016 with a dominant display on Tuesday, throwing a season’s best 78.48 meters in the fourth round.

The 35-year-old, who has four world championship golds, in 2015 became the first ever woman to send the hammer past the 80-meter mark.

China’s Wang Zheng secured silver with a season’s best throw of 77.03 meters with Poland’s Malwina Kopron taking the bronze medal.

19-year-old Athing Mu became the second-youngest Olympic 800 meter champion with a blistering performance at the Tokyo Olympic stadium on Tuesday.

Mu is the first US athlete to win the title in more than half a century, setting a new US national record in the process with a time of 1:55.21.

American Madeline Manning was the last US winner in this event back at the 1968 Games in Mexico City.

Great Britain’s 19-year-old Keely Hodgkinson set a new British record of 1:55.88 to claim silver, with American Raevyn Rogers claiming bronze in a personal best time of 1:56.81.

Mu is the second-youngest of seven siblings and was the first to be born in the United States a year after her family immigrated to the US from Sudan.