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Tokyo 2020 Olympics

From judo to soccer, big data wins at Tokyo Games

Coaches and athletes find that knowledge is power in race for gold

Japanese judoka Chizuru Arai, right, takes on Madina Taimazova of the Russian Olympic Committee in the semifinals in Tokyo on July 28.   © Reuters

TOKYO -- When double world champion judoka Chizuru Arai on Wednesday bested her Austrian opponent Michaela Polleres in a blistering final for the women's 70 kg category, Japan won its sixth gold medal in the martial art for the Tokyo Games, putting it just two short of its record haul tallied in Athens in 2004.

But this time around, the coaches, athletes and sponsors are discovering new ways to throw their opponents to the ground by tapping the insights gained from data technology.

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