 Julio Mariner made his debut in the Acomb Stakes at York Racecourse in August when he lost a great deal of ground at the start and finished unplaced.In the Sancton Stakes over seven furlongs at the same venue later that month he was beaten a short head by Tannenberg, with the two finishing twelve lengths clear of the other runners.In the following month he was moved up in class and distance for the Group Two Royal Lodge Stakes over one mile at Ascot Racecourse.