Lack of wind wiped out Wednesday's racing schedule.
After a thunderstorm hit Sydney overnight, whatever breeze on the harbour was light and fluctuating and not considered suitable for fair competition.
As a result, the men's and women's 470 medals will not be decided until Thursday, with Australians leading both fleets.
While Cantabrians Melinda
Sailing: Fleets becalmed in flukey breezes
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