The entire American line-up was changed between the heat and the final as they stormed to a ninth gold in this event.
In came 400m hurdles gold and silver medallists Dalilah Muhammad and Sydney McLaughlin to join Phyllis Francis and Wadeline Jonathas to clock a world-leading 3:18,92 and comfortably beat Poland’s national record of 3:21.89.
Jamaica took bronze in a season’s best time of 3:22.37 – though not until after they had been disqualified and then reinstated on an eventful evening.
The Great Britain quartet of Zoey Clark, Jodie Williams, Emily Diamond and Laviai Nielsen initially thought they had finished outside the medals as they ran a season’s best of 3:23.02 for fourth place but they found themselves moved up a place on to the podium after Jamaica were disqualified for lining up incorrectly at the second handover.
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October 10, 2019