In 1991, Gilchrist was selected for the Australia Young Cricketers, a national youth team that toured England and played in youth ODIs and Tests. Gilchrist scored a century and a fifty in the three Tests. Upon his return to Australia late in the year, Gilchrist was accepted into the Australian Cricket Academy. Over the next year, Gilchrist represented the ACA as they played matches against the Second XI of Australia's state teams, and toured South Africa to play provincial youth teams.