Decathlon day one: In pictures

Germany's Frank Busemann runs in the 100m decathlon race.

Tomas Dvorak of the Czech Republic gets going in the shot putt.

Britain's Dean Macey throws his all into the third discipline.

Macey prepares for the long jump.

Macey in action during the long jump.

Dean Macey of Great Britain in action in the high jump discipline in the Mens Decathlon.

Macey (number 1806) powers forward to win the 400m section of the Mens Decathlon.

Dean Macey throws his arms in the air at the finish line of the 400m.