Shiranui remained Champion and Chuck took his Pokémon to the Center to heal up and rest.  He wasn't surprised he lost, as he had gone up against a Legend such as Mewtwo, however he was surprised at how good of a fight he put up against it, having such a close match.  He was proud of himself and his Pokémon, though a bit disappointed he didn't win.  "Maybe next time." he said to himself.