how do you get to show your dog at crufts

You need to get certain awards at a championship show (if your breed has CCs then only those where CCs are on offer for the breed)in the previous year, unless your dog is already a Champion oir has won into the Stud Book, has a Junior Warrant, and a coupl of other awards.

Generally you need to place first to third in Minor Puppy, Puppy, Junior, Post Graduate, Limit and Open classes.  soem of the popular breeds qualify in some others too.

A Best In Shwo and Reserve Best In Shwo at an Open shwo wil also qualify you, as well as BOB if there are more than a certain number of classes for the breed at Premiere Open shows.