Ozzy, a border collie/kelpie crossbreed, has entered the world famous tome for achieving the Fastest Crossing of a Tightrope by a Dog.
The four-year-old from North Wales, crossed a 3.5m rope in 18.22 seconds during his record breaking stunt at the Faith Animal Rescue Centre in Norfolk.
Ozzy now lives in Norwich with his owner, 51-year-old carpenter Nick Johnson, who has no formal dog training experience but learned the techniques from the internet. Mr Johnson said:
"Ozzy is most happy when he's working on the tricks that we do and regards it as a game.
It makes me feel so happy and proud, that Ozzy and I have such a strong friendship and relationship we can work together on tricks and games that get the recognition of Guinness World Records."
More top news
Atheist Richard Dawkins has cancelled his Australia and New Zealand tour after suffering from a 'minor stroke', his management said.
Sleet and snow for some parts of Scotland. Elsewhere in the UK will be cold, cloudy and with some showers.
At least 52 people have been killed after a fight broke out between two rival drugs gangs in a Mexico prison.