A cat show is a judged event where the owners of cats compete to win titles in various cat registering organizations by entering their cats to be judged after a breed standard. Both pedigreed and companion (or moggy) cats are admissible, although the rules differ from organization to organization. Cats are compared to a breed standard, and the owners of those judged to be closest to it are awarded a prize. Moggy's are judged based on their temperament. Often, at the end of the year, all of the points accrued at various shows are added up and more national and regional titles are awarded.
In Australia, the shows can be either "closed style" or "open style" judging. In closed shows, the cats are placed in undecorated cages with white curtains and a bed. The owners must then leave the hall. The judges for each ring will examine each animal in turn and decide on awards. Then the owner may return. In open style, the owners and other spectators may stay to watch the judging, as the judges talk to them about the cats. One popular event that hosts a cat show is the annual Sydney Royal Easter Show held at Sydney's Olympic Park
In Europe, many times the cats are judged in a so-called traditional style. Traditional judging is often combined with ring style judging, so a cat show may consist of several rings plus traditional judging. With traditional judging, each cat is assigned to a judge, who gives a written report to the owner. Each judge may nominate a cat to the final judging, when all judges examine the finalists, and the final rewards are given by voting of the judges.
In the US, each judge has a separate ring with cages. The cats are brought up to the judge, who removes each cat in turn and then replaces them when they are done. Spectators, including the owners of the cats are present and in the audience. The cats' owners are given a number for each cat and are responsible for getting them to the ring when they are called.
The US Cat Fanciers' Association. (CFA) is the world's largest registry of pedigreed cats  and the predominant pedigreed cat registering association in North America. While no two shows are identical, CFA cat shows follow certain procedures and guidelines:
A CFA cat show actually consists of a number of simultaneous cat shows running at the same time within the same place. Depending on the size of the show, there are anywhere from 4 to 12 "rings" (or miniature shows) which generally run 1 to 2 days in length. Each "ring" has its own judge who independently scores cats and awards the top 10 places (or top 15 depending on the size of the show).
Rings are of two kinds:
Points are awarded to cats based multiple of their placement within each ring combined with the number of cats that the cat has "beaten" in the ring.