0 the end of a race when the competitors are so close that a photograph has to be examined in order to discover who has won --
1 a race in which competitors finish so close together that a photograph must be examined to decide who won --
In the event of a tie, they would have a photo finish.
Unlike a film based photo finish, there is no delay from developing the film, and the photo finish is available immediately.
The photo finish using a photograph with lines on it was introduced to determine the results of sprints.
The races last under a second and require a photo finish to determine who has won.
During the race, the other horses competing are distracted by a photo finish.
In these fields a photo finish is used.
The three remained even after the final hurdle and, with one hundredth of a second between them, it was a photo finish.
The horse wins in a photo finish and pays $28.40 to win (earning him $710).
