The IBSF World Snooker Championship (also known as the World Amateur Snooker Championship) is the premier non-professional snooker tournament in the world. The event series is sanctioned by the International Billiards and Snooker Federation. A number of IBSF champions have gone on to successful careers in the Pro ranks, notably Jimmy White (1980), James Wattana (1988), Ken Doherty (1989), Stuart Bingham (1996), Marco Fu (1997), Stephen Maguire (2000) and Mark Allen (2004). Both Ken Doherty (in 1997) and Stuart Bingham (in 2015) have gone on to win the professional World Snooker Championship .