World Championship Snooker 2004 -

: The 2004 event saw the Crucible debuts of Stephen Maguire and Ryan Day .

: In the semi-finals, O'Sullivan delivered a crushing 17–4 defeat to Stephen Hendry . This set a new record for the largest margin of victory in a World Championship semi-final, surpassing Hendry's own 1992 record. World Championship Snooker 2004

: Mark Williams entered as the defending champion but was eliminated in the second round, losing 11–13 to Joe Perry. Notable Records and Debuts : The 2004 event saw the Crucible debuts