His English name is Rio, not Ryo. Considering there already was a Rio in the Tag Force series, the page should be named after his original japanese name.
This makes me wonder something. There already was a character in Tag Force 4 (Masaya Nakamura) whose name in the English version was changed to Rio, who also used Decks very similar to those Kozo Nishino has. Masaya Nakamura only appears in Tag Force 4 and is replaced by Kozo Nishino in 5 and 6. Is there some connection between them?