The men's decathlon at the 2015 World Championships in Athletics was held at the Beijing National Stadium on 28 and 29 August.

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.

Freimuth took over third place by winning the shot put in 15.50, Eaton's 14.52 a foot improvement over world record pace.

A 2.10 high jump moved Kurt Felix into third position, while Eaton's 2.01 lost a little ground to the world record.

At the end of the first day, Eaton held a 173-point advantage over Warner, with three Germans, Freimuth, Kai Kazmirek and Schrader bunched behind.

Freimuth won the discus with a 50.17, Eaton's 43.34 gained a half a metre on the world record.

Eaton's 5.20 pole vault lost 10 cm to the world record, Ilya Shkurenyov used the same height to move up to fourth place.