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2000 USA Track & Field Olympic Trials Men's 400m - Michael Johnson

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Olympic Track And Field Trials | LaShawn Merritt Wins 400m Final In 43.97

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3 sub-50 runs in the 400m qualify for Paris | U.S. Olympic Track & Field Trials

Sydney McLaughlin Smashes World Record In The 400m Hurdles

Lashawn Merritt wins 400m final 43.97 Olympic Trials 2016

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1996 OLYMPIC TRIALS 400m FINAL

16 year-old Sydney McLaughlin makes 2016 U.S. Olympic T&F Team (Women's 400m Hurdle Finals)