At the 2011 World Aquatics Championships in Shanghai, he finished fifth in the 200-metre butterfly, 13th in the 100-metre butterfly and 10th in the 4 × 100 m medley relay with his teammates. 2012–2013 2012 Summer Olympics On the first day of the 2012 Summer Olympics in London, Le Clos finished fifth in the 400m individual medley. On the 4th day, Le Clos won the gold medal in the 200m butterfly in 1min 52.96 sec, edging out the two-time defending Olympic champion and world record holder, Michael Phelps, by 0.05 seconds. In personal information given to the media, Le Clos had stated before the games that his sporting hero is Michael Phelps. He later said that beating his hero was unexpected. The next day Le Clos qualified for the final of the 200m individual medley by swimming the (tied) 7th time in the semi-finals, but he withdrew to focus on the 100m butterfly. On the 7th day of the competition, Le Clos won the silver medal in the 100m butterfly, tied with Yevgeny Korotyshkin in a time of 51.44 sec, at 0.23 sec behind Phelps. During the 2012 Games, Le Clos' father, Bert le Clos, became an instant media personality after being interviewed on British television about his son's achievement in winning a gold medal. 2013 Long Course World Championships After his Olympic success, Le Clos came into the World Championships as a threat. However, this year, Le Clos shortened his program, only deciding to participate in the butterfly events. In his first event, the 50-metre butterfly, Le Clos, came 23rd with a time of 23.76, unable to advance to the semi-finals. In his signature event, the 200-metre butterfly, after easily breezing into the final, he followed his win at the Olympics, where he won with a 1:54.32. He finished off his schedule by winning the 100-metre fly with a new national record of 51.06, ending the championships on a good note. 2013 Swimming World Cup At the 2013 Swimming World Cup stop in Eindhoven, Netherlands in August 2013, Le Clos broke the short course 200 metre butterfly world record of 1:49.11, set by Kaio de Almeida of Brazil in 2009, in the final 200 metre butterfly with a time of 1:49.04, which also earned him a World Cup record and the gold medal in the event. Later in the World Cup circuit, Le Clos broke the 200 metre butterfly