Career
As of September 2013, Barreiros is ranked northern 14 in the world for two-person dinghy class by the International Sailing Federation. Barreiros made his official debut at the 2008 Summer Olympics in Beijing, where he paired up with crew member Aarón Sarmiento in the men"s 470 class.
Solid and confident, the Spanish duo finished outside the medals with a fifth-place effort on 87 points, trailing the feisty French tandem Nicolas Charbonnier and Olivier Bausset by a nine-point margin.
At the 2012 Summer Olympics in London, Barreiros competed for the second time as a skipper in the men"s 470 class by finishing ninth and receiving a berth from the ISAF World Championships in Perth, Western Australia. Teaming again with Sarmiento in the opening series, Barreiros narrowly missed a chance to sail for the medal race by a single point behind the Swedes, as the Spanish duo placed eleventh in a fleet of twenty-seven boats with an accumulated Netto score of 104 points.