{"id":1040007636,"date":"2025-09-16T15:27:22","date_gmt":"2025-09-16T14:27:22","guid":{"rendered":"https:\/\/athleticsweekly.com\/?p=1040007636"},"modified":"2025-09-16T15:27:22","modified_gmt":"2025-09-16T14:27:22","slug":"mclaughlin-levrone-runs-us-400m-record-in-world-semi-final","status":"publish","type":"post","link":"https:\/\/athleticsweekly.com\/news\/mclaughlin-levrone-runs-us-400m-record-in-world-semi-final-1040007636\/","title":{"rendered":"McLaughlin-Levrone runs US 400m record in world semi-final"},"content":{"rendered":"

American clocks 48.29 as Amber Anning finishes runner-up behind her in a swift 49.38.<\/p>\n

Sydney McLaughlin-Levrone smashed the American 400m record while Amber Annning came close to beating her own British record in some red-hot semi-finals on Tuesday night at the World Championships in Tokyo.<\/p>\n

McLaughlin-Levrone has switched from 400m hurdles to 400m flat for these championships and it looks to be paying off as she scorched to 48.29 to beat Sanya Richards-Ross\u2019s US record of 48.70 from 2006.<\/p>\n

McLaughlin-Levrone, 26, is now No.7 all-time in the event as she beat her own PB by 45 hundredths of a second.<\/p>

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Sydney McLaughlin-Levrone (Getty)<\/figcaption><\/figure>\n

Anning, meanwhile, finished strongly to be runner-up in the same heat in 49.38 and she will look to beat her 49.29 UK record in the final.<\/p>\n

McLaughlin-Levrone said: \u201cThis race definitely gives me confidence for the final. I just want to go out there and execute well again. I didn't expect to run this fast today. I still have more to show. I feel strong and good, and have confidence in my fitness. I will give everything I have in the final.\"<\/p>\n

Anning said: \"It's my best race of the whole year. I was grateful, very happy and executed it. I think my confidence was there, which is something I've been missing this year. But I put it all together today. It was about having faith in my ability.\u201d<\/p>\n