A man in a very competitive game of flaming tetherball. In the USA, tetherball is a game that two children play. A ball is tied to a pole and the players stand opposite from each other. The the players are trying to move the ball in opposite directions. The winner is the one who takes all the slack out of the rope by wrapping it all the way around the pole.
The man in the picture made the game more interesting by lighting the ball on fire.