McLaughlin-Levrone finished her 400-meter semifinal at the world championships Tuesday in 48.29 secondsIt was the fastest time of 2025, the seventh fastest time everTOKYO: One record down, and maybe one more to go for Sydney McLaughlin-Levrone.McLaughlin-Levrone finished her 400-meter semifinal at the world championships Tuesday in 48.29 seconds, shattering a 19-year-old American mark held by Sanya Richards-Ross by .41 seconds.It was the fastest time of 2025, the seventh fastest time ever, and it makes the thought of breaking the 40-year-old record of 47.60 seem totally possible in the final Thursday.“Honored, for sure,” McLaughlin-Levrone said about breaking the US record she’s been targeting since she moved over from the hurdles. “I definitely wasn’t expecting that time.