Please be advised: this story contains medal results from the Games of the XXX Olympiad, the 2012 Summer Games, in London, England. This event may not have aired yet. If you wish to not know the results, do not click through to this article.

LONDON (AP) — Matt Grevers of the United States set an Olympic record to win the men’s 100-meter backstroke at the London Olympics on Monday.

Grevers finished in 52.16 seconds, 0.38 ahead of the previous mark set by fellow American Aaron Peirsol at the 2008 Beijing Games.

Nick Thoman, another American, was second in 52.92, and Ryosuke Irie of Japan was third in 52.97.