Sheffield Shield of New South Wales, Victoria and South Australia were already playing each other in ad-hoc matches. The new tournament commenced in the summer of 1892–93, mandating home and away fixtures between each colony each season. The three teams competed for the Sheffield Shield, named after its benefactor. A Polish immigrant, Phillip Blashki, won the competition to design the trophy, a silver shield. The competition therefore commenced some 15 years after Australia's first Test match. In 1999, the Australian Cricket Board (now Cricket Australia) announced a sponsorship deal which included renaming the Sheffield Shield to the Pura Milk Cup, then to
2011 Medallion Shield 2011 Medallion Shield The 2011 Medallion Shield commenced in December 2011 with 38 teams participating. The 102nd Medallion Shield final was won by Sullivan Upper School. Each team iss assigned to a seeding group which determines the stage at which that team joins the competition. Each stage is run on a single tie knock-out basis, with replays for drawn games when necessary. The structure for the 2010-11 season was as follows: In 2010-11 the top eight seeded teams were Belfast Royal Academy, Campbell College, Limavady Grammar School, Methodist College Belfast, Royal Belfast Academical Institution, Sullivan Upper School, The Royal School,