Ronnie O'Sullivan vs Stephen Lee

1997/1998
Scottish Open (12-22 Feb 1998)
SF		Ronnie O'Sullivan (a)	6	-	2	Stephen Lee (a)
1999/2000
China Open (11-19 Dec 1999)
Final		Ronnie O'Sullivan (a)	9	-	2	Stephen Lee (a)
Final	Session 1: 61-23, 36-91 (60), 115-17 (115), 94-8 (87), 124-8 (124), 93-16, 109-1 (68), 75-43 (75) Session 2: 20-85 (69), 75-1, 76-33 (56) Referee: Alan Chamberlain
2001/2002
World Championship (20 Apr - 6 May 2002)
QF		Ronnie O'Sullivan (a)	13	-	10	Stephen Lee (a)
2004/2005
British Open (8-14 Nov 2004)
Rd 2		Ronnie O'Sullivan (a)	5	-	0	Stephen Lee (a)
2005/2006
Masters (15-22 Jan 2006)
SF		Ronnie O'Sullivan	6	-	5	Stephen Lee
2011/2012
PTC 9 (10-13 Nov 2011)
Rd 4		Ronnie O'Sullivan [1]	4	-	2	Stephen Lee [13]
German Masters (1-5 Feb 2012)
SF		Ronnie O'Sullivan [14]	6	-	4	Stephen Lee [13]