In 1899, Stout was approached to join the British Isles team on the first official tour of Australia. Stout played in all 21 matches of the tour, scoring four tries in total. After the tourists lost the First Test to Australia, the British captain, Matthew Mullineux, removed himself from further Test matches and gave Stout the on-field captaincy. The British team went on to win the final three Tests, taking the series 3–1.