The Dutchman ran 49.96 as recently as last Saturday, becoming the fourth runner in history to run under 50 seconds indoors.

Her trainer then believed that the record was within reach because the exit speed could be increased.

ARCHIVES: Fastest race in 19 years (From last weekend):

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Femke Bol is one of four women who ran under 50 seconds in 400 meters indoors.

Photo: TT