Japan's Olympic baseball team has beaten Mexico 7-4 to finish top of its opening round group and book its place in the quarterfinals.

Yamada Tetsuto gave Japan a 5-1 lead with a home run in the fourth.

The Tokyo Olympics organizing committee says 21 people related to the Games tested positive for the coronavirus on Saturday.

Officials say the figure includes four people from overseas and three living in Japan. They say 14 Japanese and foreign contract workers were also infected.

The Tokyo Olympic organizing committee says another 27 people involved with the Games have tested positive for the coronavirus.

The committee said on Friday that the cases include three athletes from overseas. It said two of them, including a US track and field athlete, have been staying in the athletes' village.

A Tokyo Olympic official has said the organizers of the Games are committed to making them safe and reliable for people in the city and Japan amid a recent surge of coronavirus cases in the capital.

Tokyo marked a record-high 2,848 new infection cases on Tuesday.

Sixteen new coronavirus cases connected to the Tokyo Olympics were confirmed on Wednesday.

The Tokyo Olympic organizing committee announced that the new cases included staff members and media from overseas related to the Games. They added that no athletes from overseas tested positive for the virus.

Tough traffic regulations imposed during the Olympic and Paralympic Games are causing congestion on surface roads in central Tokyo.

The traffic jams are having a major impact on the trucking industry.

The Olympic Games offer opportunities for athletes from all parts of the world, including many from across Asia.

Philippine skateboarder Margielyn Didal was tipped for a medal in the sport's Olympic debut. But the 22-year-old ended up in 7th place after struggling on a trick. Didal, who started skating when she was 12, was a flagbearer at the opening ceremony. Back in 2018, she was named one of Time magazine's "25 most influential teens."

Seven new coronavirus cases among athletes and others connected to the Olympics were confirmed on Tuesday.

The Tokyo Olympic organizing committee announced that two athletes from overseas tested positive for the virus. Two additional people from overseas who are staying at the Olympic Village were also confirmed as infected.

The Japanese pair won the table tennis mixed doubles on Monday, earning Japan's first Olympic gold medal in that sport.

Mizutani Jun and Ito Mima beat the Chinese pair of Xu Xin and Liu Shiwen in the finals, four games to three.

Nishiya Momiji has become the youngest Japanese Olympic gold medalist at the age of 13 after winning the women's street skateboarding at the Tokyo Games.

At 13 years and 10 months, Nishiya broke the previous record held by Iwasaki Kyoko, who won the women's 200-meter breaststroke race at the 1992 Barcelona Games at the age of 14.

Sixteen more coronavirus cases linked to the Olympics have been confirmed. Three of the people who tested positive are athletes from overseas.

The Tokyo Olympic organizing committee announced on Monday that a Games official from abroad who is staying in the Athletes' Village also tested positive.

Japan's Abe Hifumi and Abe Uta have become the first siblings to win judo golds at the same Olympics.

The younger Abe Uta got things started by winning the women's 52-kilogram category on Sunday evening. The 21-year-old defeated French rival Amandine Buchard in the final.

Japan's Horigome Yuto has won gold in the first-ever Olympic skateboarding event.

The 22-year-old got off to a slow start in the men's street competition, finishing sixth in the qualifying heat. But he was at his best in the final, where he landed four out of five tricks to rack up the highest overall score.

The top tennis players at the Tokyo Olympics are reportedly calling for matches to be rescheduled to avoid the heat.

CNN and other outlets quoted world number one Novak Djokovic as saying Tokyo's high temperatures and humidity are made worse by the hard court surfaces, which absorb the heat.