The Trans Tasman Test Series is an annual international competition between Australia and New Zealand, where the two countries’ top working sheep dogs and handlers compete for the prestigious Wayleggo Cup. The series celebrates the highest standard of sheep dog handling and stockmanship, combining skill, instinct, and teamwork across challenging courses.
 

The Wayleggo Cup was first introduced in 1994 by the New Zealand Sheep Dog Trial Association, inspired by then-president Tony Shield. The name “Wayleggo” comes from the traditional command “come away and let go,” used by musterers to call their dogs back from stock — a fitting symbol for teamwork and obedience.
 

In New Zealand, the competition consists of two tests, with three tests in Australia, and the country with the highest combined aggregate across all wins the Cup. The event alternates annually between the two nations, with host responsibilities rotating each year.