I don't get it. Would somone please explain? And how could anyone make such a mistake? Would that dog be eliminted or can you change the entry as long as you see it before the start of the show?

As long as the AKC Registration Number and AKC Name are correct the rest of the information is "window dressing."

Now lets enjoy the show! Lots of fabulous dogs to watch on the WKC streaming video.

A quick google search revealed the bitch herself was bred to the dog listed as her sire. Likely the person submitting the entry accidentally listed the wrong sire. I've done it before as well and since the daughter is likely being shown more than the dam, the person likely had the name 'on the brain' and it was a mistake!