The Rat & Mouse Competition is one of the newer Agricultural Competitions at the Show. Introduced as a non-competitive exhibit in 2003, the Rat & Mouse Show was officially included in the Sydney Royal competitions in 2004.

The Rat & Mouse Competition is one of the newer Agricultural Competitions at the Show.  Introduced as a non-competitive exhibit in 2003, the Rat & Mouse Show was officially included in the Sydney Royal competitions in 2004. The Rat & Mouse Competition is a pet class that promotes public understanding of rats and mice within Agriculture and how we accept them in our community. Today, the Competition attracts around 250 entries, with over 11 types of breeds and 70 classes. The Rat & Mouse Competition is self-administered by the Australian Rodent Fancier' Society of NSW Inc.