On the starting line with drivers and spectators at the Great Lakes Dragaway.
Cars battle cars at the Kinmount Fair.
Animals interrupt play as they run or fly onto fields, pitches, and courts.
Horse riders hurtle around the central square in Siena, Italy.
Players hit the mud during a swamp soccer game near Dombrovka in Belarus.
Sports photographers use multiple-exposure techniques to capture pitchers in action.
A look at Jeane Alves, the only active female jockey racing in Sao Paulo, Brazil.
Competitors launch homemade, human powered flying contraptions.