In the 2013–14 season he earned a silver medal in the European Junior Championships in Jerusalem. He also took part in his first senior Fencing World Cup competition, the Trophée Monal in Paris, where he defeated World No.15 Park Sang-young of Korea, but ceded in the second round to France's Jonathan Bonnaire. At the European Championships in Strasbourg, he was defeated in the second round by Maksym Khvorost of Ukraine. In the team event, Spain created an upset by overcoming France, then Russia. They were defeated by reigning European champions Switzerland and came away with a silver medal in the first European podium for Spanish fencing since Jorge Pina's gold in sabre at the 2007 edition in Ghent. At the World Championships in Kazan Pereira was eliminated by Bas Verwijlen in the preliminary table of 64. In the team event, Spain edged out Kazakhstan in the table of 64, but were defeated by Hungary and finished 15th. Pereira ended up World No.1 in Junior rankings.