What is Sydney McLaughlin's net worth? Born on August 7, 1999, Sydney Michelle McLaughlin competed for the University of Kentucky for one year before turning professional in 2018. She is the current world record holder in the women's 400 meters hurdles with a time of 51.46 seconds, which she set on August 4, 2021, at the Tokyo Olympics in the final run. McLaughlin became the first woman to break 52 seconds in the event when she set the world record of 51.90 at the 2020 USA Olympic trials. The gold medal comes five years after McLaughlin made her Olympic debut in Rio, when she was 16 years old. EUGENE, OREGON - JUNE 25: Sydney McLaughlin competes in the first round of the Women's 400 Meters Hurdles during day eight of the 2020 U.S. Olympic Track & Field Team Trials at Hayward Field on June 25, 2021 in Eugene, Oregon (Photo by Andy Lyons/Getty Images)