'"The Cup Winner," as its name implies, deals mainly with horses, and followers of the "sport of kings". In the first act a happy home–Richard Avenell's–is wrecked by the work of a blackmailer (Stephen Warland) who in the subsequent acts pursues his villainous career. In the final scene, however, the tables are turned and the blackmailer's horse, Odd Stocking, being beaten by the hero's, Kitchener, in the race for the Ascot Gold Cup, Warland receives his deserts, and the hero's family is reunited once more.'
Source: 'His Majesty's Touring Theatre', Brisbane Courier, 25 January 1909, p.6.