Each day this week is a medal race day, and today we see the 49ers in action, but there are two other crunch-time events today.
First off, at 1200, it's GBR Olympic sailors Hannah Mills and Saskia Clark. They are looking in good shape in the women's 470 class. They have been vying for first place all week with the New Zealand team of Jo Aleh and Olivia Powrie. Yesterday the Kiwis were on fire, and overtook the GBR pair to take a four-point lead into the final day of full fleet racing.
But the Brits have a few things in their favour. First they have the lowest discard score of the whole fleet, and second they are used to coming from behind. If they can get things level today then their hopes of a gold medal are high.
49er bronze medal hopes
It's been a snakes and ladders week for British 49er sailors Stevie Morrison and Ben Rhodes. On day one they looked pretty average - with two 12th for all their hard labour. Then they came back all guns blazing to port two firsts... could they challenge pre-event favourites Nathan Otterridge and Iain Jensen?
Sadly no. While the Aussies stormed away from the pack to secure gold with a day to spare, the British pair faltered. Now they are lying fifth and hope that the shifty Nothe course will give them a medal. Racing starts at 1300hrs today.
Match racers' day of reckoning
Finally, starting at 1400hrs, it's quarter-final knock out time in the women's match racing. The British trio of Lucy Macgregor, Kate Macgregor and Annie Lush, which have earned the nickname 'Team McLush', have struggled a bit so far during this event, but they showed some promising form yesterday. They are up against the mighty Russian team, the scoreline after yesterday's action is 1-1 and it's first to three that wins... the crowds on the Nothe are certainly going to be vocal today!
See our Top 10 Moments From the 2012 Olympic Games and stories from earlier in the week, including Olympic Silver for Nick Dempsey and First Olympic Sailing Medals Decided in Weymouth.