The race will be the sole topic of conversation for Draper and Hiscocks, who won silver in this class in Sydney, at the team meeting today.
They must weigh up the dangers of trying for gold with the more sensible tactic of targeting the Ukraine boat in a bid to secure the silver medal.
"We must decide if we are going to go out and win the race or protect ourselves in an effort to win silver," said Draper, who was bitterly disappointed by their first, ninth and sixth places yesterday.
He added: "We were very upset with our results in the last two races and while it is unlikely that we could still win it, we will be doing everything we can."
In the Star class, Iain Percy, the Finn gold medal winner from Sydney, is lying in seventh place with Steve Mitchell, but they still have a great chance of a medal.
Just nine points separate the British boat and the secondplaced Canadians with five races still to go in the competition.
Meanwhile, the Mistrals have just one race to complete today with Britain's Nick Dempsey in fourth place and 10 points behind the bronze position held by local hero Nikolaos Kaklamanakis, of Greece.