Showing is a sport whether it be pure for the fun of it or for the show casing of our breed to the best representation. However, my thoughts are this....while I totally have fun showing because I love to do it (or I wouldn't be doing it LOL) I still believe when you go in the ring it needs to be with "the best" representation of the breed and in my opinion a small bitch under 4 1/2 pounds at adult weight, I'm not talking puppy

should be in a loving pet home or on your couch like my sweet Krissy. When I realized she wasn't going to grow anymore and I realized it wasn't wise and really a waste of money dragging her around because finding judges that like "really" small yorkies was hard to find wasn't in Krissy's best interest (btw she was and still is just 3 1/2 pounds). Although she loved showing and was a spitfire she's much happier being our little lap princess! Could I have finished her "yes" was it that important "no" was it money wasted "in my opinion yes". I'm not looking for how many champions I can get. It's the best representation of our beloved breed I try to bring to the ring.
My decision, my opinions

Anyway the orginal OP never mentioned whether it was a dog or bitch LOL. A smaller male like Mary said is alittle more accepted in the show ring than a bitch because judges do look at a bitch for breeding purposes not all but most.
Anyway this post is not meant to sway anyone or make anyone feel bad but only my opinion as a show exhibitor and breeder and what I would do and how I think

In no way does it mean you can't show what one wants.
Donna Bird
Brooklynn's Yorkshire Terriers