The men's decathlon at the 2015 World Championships in Athletics was held at the Beijing National Stadium on 28 and 29 August. The overwhelming favorite here had to be the World Record Holder, Olympic Champion and defending Champion, Ashton Eaton. This was Eaton's first decathlon of the year. American Trey Hardee entered as the world leader. Pan American Games and Commonwealth Games champion and returning bronze medalist Damian Warner and returning silver medalist and Götzis winner Michael Schrader were also medal contenders.