The 33rd Trofeo Princess Sofia-Madrid 2012 was officially opened yesterday with a record 1'070 boats from 35 different countries, including Great Britain and Ireland, competing in the prestigious event. The regatta, which runs until March 29, also features three Olympic gold medallists, two silver medalists and a bronze medalist from the Sydney 2000 Olympic Games, as well as five World Champions and eight European Champions. The Cruiser class regatta starts the Trofeo today at the Real Club Nautico de Palma with 46 entries. Amongst those competing will be the Principe de Asturias on board Sirius V, Pedro Perelló racing Siemens, Iñaki Castañer on Ono and favourite Fernando León's team with CAM. The Cruiser class regattas run until Sunday and are followed by regattas in Dragon, Star and Yngling class at the RCN Palma, 470, Finn, Tornado and 49er classes at the Club Nautico Arenal, the Mistral and Europa at the Club Maritimo San Antonio de la Playa, and the Laser, Snipe and 420 classes at the National Sailing School in Calanova.