Semi-final Finishes By Ronnie O'Sullivan In All Professional 1 Events

Tournament
2024 Xi'an Grand Prix
2023 International Championship
2022 Tour Championship
2021 English Open
2020 World Grand Prix
2020 Welsh Open
2018 English Open
2012 Welsh Open
2010 Welsh Open
2009 UK Championship
2007 China Open
2006 World Championship
2004 British Open
2003 UK Championship
2002 World Championship
2002 Thailand Masters
2001 British Open
2000 UK Championship
1999 British Open
1999 World Championship
1999 Welsh Open
1998 World Championship
1997 German Open
1997 Thailand Open
1996 World Championship
1996 British Open
1994 European Open
1994 Dubai Classic
1993 Dubai Classic