Abstract: The purpose of the present invention is, in a horse race or a motorboat race, to display the progress of the race (trail) of each horse, by obtaining analysis data of a plural number of patrol images provided around the race course, by acquiring position information of each horse at the moment and by tracking the specific horse through judging similarity between consecutive pictures of said patrol image. The position information analyzing and displaying method for each horse or boat or the like of the present invention, for continuously captured race images, identifies each horse or boat or the like by similarity analysis and tracks continuously the trail of each horse or boat or the like in said racing images, and also analyzes said position information of each horse or boat or the like by using the positional relationship with the fixed position information in said images, in order to display the trail of each horse or boat or the like.