The last time the Kiwis lost an international 49er regatta was at London 2012, when they took the Olympic silver medal.

Now with an unbroken run of 23 regatta victories, Burling and Tuke will go to Rio 2016 as firm favourites for gold.

"Yeah, pretty happy to get the fourth one," said Burling.

"It was a tough start to the week but getting some early wins in qualifying made it easier for us."

While the medal race was a formality for the victorious Kiwis, there was a close battle for second and third.

Reigning Olympic champions Nathan Outteridge and Iain Jensen of Australia started too early, knocking them out of the silver medal position and leaving the way clear for Austria’s Niko Delle Karth and Niko Resch to take second after finishing runners-up in the medal race.

Great Britain's Dylan Fletcher and Alain Sign seized their moment to win the medal race and clinch the bronze medal.

The Spanish team of Tamara Echegoyen and Berta Betanzos emerged from the final day’s 49erFX racing to win the title, despite coming seventh in the medal race.

Maiken and Anne-Julie Schütt crossed the line in fifth to give the Danes the silver medal by just a single point from Germany's Victoria Jurczok and Anika Lorenz, who took the bronze.

Another Danish duo, Jena Mai Hansen and Katja Salskov-Iversen, won the medal race and secured their selection for the Olympic Games.

France’s Billy Besson and Marie Riou, who were crowned world champions yesterday, took a second place finish in the final race of the Nacra 17 series.

Allan Norregaard and Annette Viborg Andreasen of Denmark finished second overall, ensuring their first-ever silver medal at a World Championships and a place at Rio 2016.

Italy’s Vittorio Bissaro and Silvia Sicouri claimed bronze after coming third in the medal race, which was won by Denmark’s Lin Ea Cenholt Christiansen and Christian Peter Lübeck.