The 2018 Mr. Olympia contest was a weekend long IFBB professional bodybuilding competition that was held on September 14 to 15, 2018, in Las Vegas, Nevada. This was the 54th Mr. Olympia competition celebrated. The weekend competition is also known as the Joe Weider's Olympia Fitness and Performance Weekend. While the main event was the competition for the title of Mr. Olympia, several other events were held which includes the Amateur competition and sports expo. On September 12, 2018, a press conference was held on Orleans Arena. On September 17, 2018, an Olympia Superstar Seminar was held.