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US star Sydney McLaughlin smashes own world record in 400 hurdles track and field world championships

Yes, she did it again.

For the third time in a calendar year, reigning Olympic gold medalist Sydney McLaughlin broke her own world record in the 400-meter hurdles — this time en route to her first career world championship, and by an almost unfathomable margin.

With a eye-popping time of 50.68 seconds Friday at Hayward Field in Eugene, Oregon, the 22-year-old shaved about three quarters of a second off her previous world record of 51.41, set last month on the same track at the U.S. outdoor nationals. Femke Bol of the Netherlands finished in second place, roughly 1.