9 August 2012 Last updated at 01:32

Olympics 2012 sailing: Day 12 round-up

British women's 470 crew Hannah Mills and Saskia Clark guarantee themselves an Olympic medal and will battle New Zealand for gold on Friday.

In Wednesday's other action, Australia's Nathan Outteridge and Iain Jensen take gold in the men's 49er class medal race with their New Zealand rivals in silver and Denmark in bronze.

And in the women's match race, Great Britain's Annie Lush with sisters Kate Macgregor and Lucy MacGregor lost in their deciding quarter-final match against Russia.

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