Jamaica's Thompson secures sprint double

Jamaica's Elaine Thompson completed a memorable sprint double on Wednesday after storming to victory in the women's 200 metres final, blowing away the field with a season's best run of 21.78 seconds.

The 24-year-old 100m champion beat pre-race favourite Dafne Schippers of the Netherlands, who ran her fastest time of the season in the final but had to settle for silver.

Schippers, world 200m champion, picked up a leg muscle injury ahead of the 100m final last week and said she almost pulled out of the Games.

After winning the 100m final Thompson said she was surprised by her victory but she appeared in complete control after a brilliant start that helped her surge ahead of the field after the bend.

American Tori Bowie, who won a silver medal in the 100m final, grabbed bronze.

Ahead of the final, Bowie was the only woman other than Schippers to have run a sub-22 second race over 200m this year.

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