I have never seen a bulldog pull this off before.
This is Rudy, at the 2019 Westminster Dog Show over the weekend.
I don't know all the technical terms for what is going on in this video, but can I just say that a bulldog running that fast, for that long is mind-blowing? He did the in & out things nearly flawlessly!
I hope he wins all the treats and awards, because this is seriously awesome.