Man holding a starting gun

Race official holding a starting gun at the beginning of a track event

Male athlete in starting position on a running track

Male athlete in starting blocks on a running track

Man positioning starting blocks on a running track

Male athlete in starting blocks on a running track

Athlete with a prosthetic leg standing at the starting line of a race

Male athlete in starting blocks on a running track

Rear view of a male athlete in starting blocks on a running track

Man with his leg in a brace and using crutches

Group of male athletes in starting blocks on a running track

Studio shot of referee holding a starting gun

Studio shot of a human hand holding a starting gun

Soldier shouting

Soldier shouting

Side profile of two businessmen with a businesswoman at starting positions on a running track

Three businessmen running on a running track

Two roses and petals on the floor (composite)

Side profile of two businessmen running on a running track

World War One poster of Marines charging into battle behind the American flag.

Man on a running track and holding a starting gun