The six-year-old dog, whose full name is Araki Fabulous Willy, was named best in show after four days of the Crufts competition in Birmingham, central England.
Organizers said around 143,000 spectators flocked to the annual event, which last year crowned Californian pooch Chance an Australian Shepherd as champion.
Crufts was established in 1891 and sees dogs from around 30 countries compete for the title, reports AP.
"It is unbelievable. This dog has done so well. It is the biggest accolade you could ever wish for," said Willy's owner Neil Smith, of Gloucestershire, western England.
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