A sheepdog trial (also herding event, stock dog trial or simply dog trial) is a competitive dog sport in which herding dogs move sheep around a field, fences, gates, or enclosures as directed by their handlers. Such events are particularly associated with hill farming areas, where sheep range widely on largely unfenced land. These trials take place in the United Kingdom, Ireland, South Africa, Chile, Canada, the USA, Australia, New Zealand and other farming nations.
Some venues allow only dogs of known herding breeds to compete; others allow any dog that has been trained to work stock.
The first dog trials were held in Wanaka, New Zealand, in 1867 with reports of trials at Wanaka, Waitangi and Te Aka in 1868, at Wanaka in 1869 and Haldon Station in the Mackenzie Country in 1870. Australia also has a long history of dog trialing, with a kelpie named Brutus reported in the local paper in Young, NSW, as winning a sheepdog trial in 1871.
Janet Larson, in "The Versatile Border Collie," recounts the first sheepdog trials held in the United Kingdom: "The first sheepdog trial was held in Bala, Wales, on October 9, 1873. It was organized by Richard John Lloyd Price, squire of Rhiwlas Estate and friend of Sewallis Shirley, MP, founder of the Kennel Club that same year. Ten dogs competed and over 300 spectators attended. The winner was Mr. James Thompson with Tweed, a compact, black and tan Scottish bred dog with a foxy face.
The first Scottish sheepdog trial was held at the Carnworth Agricultural Society Show in Lanarkshire around 1874. It is reported that the winner was James Gardner of Pentland with a black and white bitch named Sly, who worked with 'eye.' The prize was one pound, which was considerable money in those days."
Trials quickly spread in England and Scotland. From the beginning, shepherds realized that show collies, also becoming popular at the time, quickly lost the keen working instincts honed in working collies. In 1876, a trial was organized in Alexandra Park by the sheepman as a challenge to the show fanciers to demonstrate that show collies could still work. There were two judges for work and appearance. The result was a disaster for the show fanciers. Show collies barked, yelped and lost control of many sheep. The winner was a common red coated working collie named Maddie, owned by John Thomas, a Welsh shepherd.