Jamaica’s Shericka Jackson delivered a command efficiency to retain her world 200 metres title in 21.41 seconds on Friday – the second-fastest time ever run.

Jackson, second within the 100m closing, ran a superb bend, was two metres clear coming into the house straight and tore house to win by a avenue. Only Florence Griffith-Joyner’s 21.34 world file from 1988 is quicker. Gabby Thomas took silver in 21.81, whereas fellow American Sha’Carri Richardson added bronze to her 100m gold with a private greatest 21.92.

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