Cute story, but fake. If you look at the scenes early in the race, Dozer's feet are uncovered. Look at the shots at and near the finish, and he's wearing doggie running shoes.
Sort of like this one:
http://www.etv-hellas.net/videos/2014-03-05.htmlI sent it to a friend in Greece. The language is Greek, and he said the video is actually a promotional, fund raising video for a group that wants to stop Norwegians and Fins from killing dolphins. It's a touching story -- but it's just a story.