 Harrington made his World Championship debut in 1992, reaching the quarter-finals before losing to eventual runner-up Mike Gregory.At the 1993 World Championship, Harrington was seeded fourth but lost 2-3 to Wayne Weening in the first round.After those championships, the majority of the top players left the governing body, the British Darts Organisation, to form the WDC (now PDC) in an acrimonious split in the game.