Kimmann, Shriever win BMX racing gold; 2 stretchered off
From left, Bethany Shriever of Britain, Saya Sakakibara of Australia, Lauren Reynolds of Australia, Manon Valentino of France, and Zoe Claessens of Switzerland compete in the women's BMX Racing quarterfinals at the 2020 Summer Olympics, Thursday, July 29, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

From left, Bethany Shriever of Britain, Saya Sakakibara of Australia, Lauren Reynolds of Australia, Manon Valentino of France, and Zoe Claessens of Switzerland compete in the women's BMX Racing quarterfinals at the 2020 Summer Olympics, Thursday, July 29, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Jul. 29, 2021 03:09 AM EDT
Bethany Shriever of Britain stands with her gold medal in the women's BMX Racing finals at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Bethany Shriever of Britain stands with her gold medal in the women's BMX Racing finals at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Jul. 30, 2021 01:03 AM EDT
Kye Whyte of Britain lays on the track after winning the silver medal in the men's BMX Racing finals at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Kye Whyte of Britain lays on the track after winning the silver medal in the men's BMX Racing finals at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Jul. 30, 2021 01:16 AM EDT
From left, Bethany Shriever of Britain, Lauren Reynolds of Australia, Saya Sakakibara of Australia, Manon Valentino of France, and Zoe Claessens of Switzerland compete in the women's BMX Racing quarterfinals at the 2020 Summer Olympics, Thursday, July 29, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

From left, Bethany Shriever of Britain, Lauren Reynolds of Australia, Saya Sakakibara of Australia, Manon Valentino of France, and Zoe Claessens of Switzerland compete in the women's BMX Racing quarterfinals at the 2020 Summer Olympics, Thursday, July 29, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Jul. 29, 2021 03:08 AM EDT
Carlos Alberto Ramirez Yepes of Colombia stands with his bronze medal in the men's BMX Racing finals at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Carlos Alberto Ramirez Yepes of Colombia stands with his bronze medal in the men's BMX Racing finals at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Jul. 30, 2021 12:53 AM EDT
Niek Kimmann of the Netherlands, right, is followed by Twan van Gendt of the Netherlands, Renato Rezende of Brazil, James Palmer of Canada, Nicolas Torres of Argentina, and Helvijs Babris of Latvia in the men's BMX Racing quarterfinals at the 2020 Summer Olympics, Thursday, July 29, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Niek Kimmann of the Netherlands, right, is followed by Twan van Gendt of the Netherlands, Renato Rezende of Brazil, James Palmer of Canada, Nicolas Torres of Argentina, and Helvijs Babris of Latvia in the men's BMX Racing quarterfinals at the 2020 Summer Olympics, Thursday, July 29, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Jul. 29, 2021 12:18 AM EDT
Niek Kimmann of the Netherlands, center, Kye Whyte of Britain, left, and Carlos Alberto Ramirez Yepes of Colombia, right, stand with their medals in the men's BMX Racing finals at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Niek Kimmann of the Netherlands, center, Kye Whyte of Britain, left, and Carlos Alberto Ramirez Yepes of Colombia, right, stand with their medals in the men's BMX Racing finals at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Jul. 30, 2021 12:56 AM EDT
Connor Fields of the United States, center, leads with Anthony Dean of Australia, above, Carlos Alberto Ramirez Yepes of Colombia, 2nd right, and Giacomo Fantoni of Italy, right, following, in the men's BMX Racing quarterfinals at the 2020 Summer Olympics, Thursday, July 29, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Connor Fields of the United States, center, leads with Anthony Dean of Australia, above, Carlos Alberto Ramirez Yepes of Colombia, 2nd right, and Giacomo Fantoni of Italy, right, following, in the men's BMX Racing quarterfinals at the 2020 Summer Olympics, Thursday, July 29, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Jul. 29, 2021 02:02 AM EDT
Bethany Shriever of Britain, center, Mariana Pajon of Colombia, left, and Merel Smulders of the Netherlands, right, stand with their medals in the women's BMX Racing finals at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Bethany Shriever of Britain, center, Mariana Pajon of Colombia, left, and Merel Smulders of the Netherlands, right, stand with their medals in the women's BMX Racing finals at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Jul. 30, 2021 01:06 AM EDT