A much more overcast day caused better conditions for racing than the light winds which disrupted action on the London 2012 Olympic course yesterday.

Scott, who did not compete on home waters at the Games due to the presence of now-retired four-time gold medallist Sir Ben Ainslie, was among those to capitalise as he looks ahead to his Olympic debut at Rio 2016.

After a second place in the first race, he came fifth in the second before winning the third.

Team-mate Ben Cornish lies second after managing first, second and ninth-place finishes, while France's Fabian Pic is third.

Sweden's Hyères World Cup winners Lisa Ericson and Hanna Klinga overcame a disastrous start in the 49erW class when they were disqualified in the first race.

They followed this up superbly, however, with a third and double bullets to lead the fleet.

"It's the beginning of the regatta so anything could have happened today," explained Klinga.

"Apart from the OCS, we are happy but we will take less chances now because we can't afford to get another bad result, but we will think exactly the same as normal, just race and look forward."

Fellow Swedes Julia Gross and Cecilia Jonsson lie second, with Charlotte Dobson and Sophie Ainsworth continuing a good day for the host nation by moving into third, two points off the leaders.

China's Peina Chen was the individual star of the day, winning all three races today to dominate in the women's windsurfing R:SX class.

British duo Emma Wilson and Isobel Hamilton lie second and third.

Germany's Toni Wilhelm leads the corresponding men's fleet ahead of China's Liu Chunzhuang and overnight leader Aichen Wang.

But Wilhelm and Wang were among six sailors to be black-flagged in the final race of the day, so will rapidly fall down the leaderboard if they have another bad race.

Racing is due to resume tomorrow and conclude on Sunday (June 12) with the medal races.