World Championships 2015: Dina Asher-Smith fastest in 200m heats

Great Britain's Dina Asher-Smith qualifies fastest for the 200m semi-finals, as Bianca Williams also progresses at the World Athletics Championships in Beijing.

Asher-Smith, aged 19, ran a personal best of 22.22 seconds with Commonwealth bronze medallist Williams clocking a season's best of 22.85.

Another Briton, Margaret Adeoye also made it through after a bizarre lane mix-up involving Jamaica's Veronica Campbell-Brown.

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BBC Sport