Reality
(The Dog - Sport of Dog Racing - 22) Some people may argue that this is an isolated case that has nothing to do with the "sport", and that may be true to some extent, that is, if we eliminate the underlying cause. Once a society's moral values descends to the point that the exploitation of any living being as considered acceptable, that society opens its doors up to all sorts of abuses, such as the one depicted here.
Photo from: Las Nieves Association for Animal Protection
If these reality photos are disturbing, and you don't believe such things should be done to dogs, then set the proper example by not doing such things to any animals, and by not supporting those who do. Stop eating or wearing animal products or supporting any activity that exploits animals, and tell others why you stopped.