News Sydney McLaughlin breaks world record in 400-meter hurdles to win U.S. Olympic trials June 28, 2021Tom Schad and Tyler Dragon, USA TODAYComments Off on Sydney McLaughlin breaks world record in 400-meter hurdles to win U.S. Olympic trials Sydney McLaughlin set a new world record in the women's 400-meter hurdles at the U.S. Olympic track trials, qualifying for the Tokyo Olympics.