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Nineteen-year-old Jonnie Peacock crouches in his blocks as 80,000 spectators fall silent. He knows the difference between triumph and disaster will be about the time it takes to blink an eye.

'You sit there, and you think - in 10 seconds, this is going to be done. Four years of my life,' he recalls.

In Ten Second Showdown, Mike Costello revisits some of the most iconic 100m races of all time. This time he's at London 2012 for the culmination of Thriller Thursday - perhaps the greatest night in Paralympic history.

Mike speaks to Jonnie Peacock and his co-commentator from that night, Tanni Grey-Thompson.

PRESENTER: MIKE COSTELLO
PRODUCER: TOM MOSELEY