User: America’s cup comeback
Assistant: In September, 2013 one of sports most iconic comeback took place on the San Francisco Bay.  

The incredible comeback was when Oracle Team USA overturned an 8-1 deficit to retain the Auld Mug.  

Winning eight straight races has to be ranked the best and most unlikely of all such sporting turnarounds.

With the Kiwis requiring just one more race for victory,  the Americans called up Ben Ainslie who was the driver for the reserve boat.  The Brit’s influence helped shift the momentum that the Kiwis were unable to stop.

San Francisco Bay is extremely challenging to sail with currents and winds above 25knts.  The regatta will forever be remembered as the best comeback of sailing all time.
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