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Delilah Muhammad upsets Sydney McLaughlin to set 400mH world record

Muhammad won the US champs in a new world record on Sunday

Delilah Muhammad ran a new world record on Sunday in the 400mH at the USATF Track and Field Championships. Muhammad clocked a 52.20, taking down a 16-year-old record in the rain.

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The race was billed as Sydney McLaughlin’s world-record attempt, but it ended up being Muhammad’s race to win. The new world record-holder took the race out strong and was never challenged.


Muhammad has had a long and extremely impressive career. She’s an Olympic gold medallist and a World Championship silver medallist in the event. She told the IAAF that she’d had her eye on the world record all season.

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While she didn’t snag a world record, McLaughlin still ran her second-fastest time ever and a season’s best to finish second in 52.88.

McLaughlin graduated high school in 2017 and started at the University of Kentucky in the fall of 2018. Many running fans were surprised at the hurdler’s decision to go to school as opposed to turning pro right out of the gate, but her first year in the NCAA was very successful. The freshman managed to set the collegiate outdoor record and world junior record in the 400m hurdles, running 52.75, and a world junior record in the indoor 400m of 50.36. Both women have now been named to the World Championship team.