https://www.nbcolympics.com/videos/benjamin-cruises-400m-hurdles-first-round-heat-victory-01
Benjamin cruises to 400m hurdles first-round prelim victory | NBC Olympics
American Rai Benjamin, the 2019 world silver medalist, comfortably wins his 400m hurdles first-round heat in 48.60 to advance to the semis; Estonia's Magi,...
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