Berecz, winner of the Tokyo test event in 2019, led after the first day before being overtaken by Spain’s 22-year-old Joan Cardona, who won both of Tuesday’s races.

But after replicating that outstanding achievement today the 34-year-old, who competed at the Beijing 2008 and London 2012 Olympics in the Laser class, now has 32 points, with Britain’s Rio 2016 champion Giles Scott second on 43 after finishing seventh and second today.

Switzerland’s Nils Theuninck remains third on 56 points, having followed up two second places on day three with a 14^th and fourth-placed finish today.

Cardona, meanwhile, has slipped to eighth after placing 23^rd and 17^th today - but he still looks sure to make a successful defence of his under-23 title as his nearest age group rival is 22 places behind him.

Tomorrow will see the final two races of the event, which is doubling for many as a vital warm-up for the final Tokyo 2020 qualification event in Portugal four weeks from now - the Finn Gold Cup in Porto.

A fleet of around 50 sailors from 28 nations has gathered to take advantage of a regatta that was originally intended to be sailed at the French venue of Hyères over the same dates.