The Rio 2016 bronze medallists had a difficult start to the day by ending 27th in the opening race, but responded by winning the second.

Their high score is currently discarded from the overall points total, but could prove costly should they suffer another poor finish.

Australia's Mat Belcher and Will Ryan, the Olympic silver medallists are second, now lie one point behind after second and third place finishes today.

The women’s 470 standings are even tighter, with Dutch sailors Afrodite Zegers and Anneloes van Veen now sharing the lead.

Zegers and Van Veen secured a race win, but by ending 16th in the opening race saw an earlier eighth place finish be added to their score.

Switzerland’s Linda Fahrni and Maja Siegenthaler join them at the top of the standings on 15 points.

The close contests continue with the men’s 49er event, with Britain’s Dylan Fletcher-Scott and Stu Bithell holding a slender two point advantage over Spain's Diego Botin and Iago Lopez.

Brazil’s Martine Soffiatti Grael and Kahena Kunze have established a comfortable lead in the women’s 49erFX competition.

The pair are 10 points clear of Victoria Jurczok and Anika Lorenz, despite the Germans winning all three races contested today.

Poland’s Zofia Noceti-Klepacka leads Israel’s Noga Geller by the same margin in the women’s RS:X class, while Geller’s compatriot Shahar Zubari trials Switzerland’s Mateo Sanz Lanz by six points in the men’s fleet after seven races.

The Nacra 17 competition looks delicately poised with Moana Vaireaux and Manon Audinet of France currently tying for the lead with Spain’s Fernando Echávarri Erasun and Tara Pacheco van Rijnsoever.

Success appears on the cards for France in the kiteboarding competition, with Axel Mazella and Nicolas Parlier remaining out in front in their respective fleets.

The duo have won all but one of their 12 races, with that score currently discarded from their current total of 10 points each.

Dutch sailor Nicholas Heiner is out in front in the men’s finn class on 17 points having shared the overnight lead with Ben Cornish.

The Briton ended 10th and 16th in the two races contested today, with the results seeing him slip to joint second place with Fabian Pic of France on 26 points.

Hungary’s Mária Érdi holds a narrow one point lead over Belgium’s Evi Van Acker in the women’s laser radial event, while Austria’s Matthew Wearn is four points clear of Pavlos Kontides of Cyprus in the men’s laser.

The Paralympic 2.4 metre Norlin OD competition is led by France’s Damien Seguin, who has a tally of five points.

His compatriot Xavier Dagault is eight points adrift in second.

Racing will continue tomorrow and will run until Sunday (April 30).