| Result | Tournament |
|---|---|
| Josh Boileau defeated Dessie Sheehan | 2013 Q School - Event 3 Snooker |
| Michael Georgiou defeated Dessie Sheehan | 2013 Q School - Event 2 Snooker |
| Steven Hallworth defeated Dessie Sheehan | 2013 Q School - Event 1 Snooker |
| Steve Meakin defeated Dessie Sheehan | 2012 World Seniors Championship Snooker |
| Scott Donaldson defeated Dessie Sheehan | 2012 Q School - Event 3 Snooker |
| Saqib Nasir defeated Dessie Sheehan | 2012 Q School - Event 2 Snooker |
| Vinnie Calabrese defeated Dessie Sheehan | 2012 Q School - Event 1 Snooker |
| Nico Elton defeated Dessie Sheehan | 2012 PTC - Event 3 Snooker |
| Dessie Sheehan defeated Robert Tickner | 2012 PTC - Event 3 Snooker |
| Joe Swail defeated Dessie Sheehan | 2012 PTC - Event 2 Snooker |
| Allan Taylor defeated Dessie Sheehan | 2012 PTC - Event 1 Snooker |
| Ali Bassiri defeated Dessie Sheehan | 2011 World Seniors Championship Snooker |
| Anthony Cronin defeated Dessie Sheehan | 2011 PTC - Event 8 Snooker |
| Zak Surety defeated Dessie Sheehan | 2011 PTC - Event 5 Snooker |
| Chris Norbury defeated Dessie Sheehan | 2011 PTC - Event 3 Snooker |
| Joel Walker defeated Dessie Sheehan | 2011 PTC - Event 1 Snooker |
| Michael Judge defeated Dessie Sheehan | 2007 Irish Professional Championship Snooker |
| Richard King defeated Dessie Sheehan | 2004 World Championship Snooker |
| Tom Ford defeated Dessie Sheehan | 2003 World Championship Snooker |
| Dermot McGlinchey defeated Dessie Sheehan | 2003 Challenge Tour - Event 4 Snooker |
| Karl Burrows defeated Dessie Sheehan | 2003 Challenge Tour - Event 3 Snooker |
| Craig Roper defeated Dessie Sheehan | 2003 Challenge Tour - Event 2 Snooker |
| James McBain defeated Dessie Sheehan | 2002 World Championship Snooker |
| Karan Chand defeated Dessie Sheehan | 2002 Challenge Tour - Event 4 Snooker |
| Barry Mapstone defeated Dessie Sheehan | 2002 Challenge Tour - Event 3 Snooker |
| Scott MacKenzie defeated Dessie Sheehan | 2002 Challenge Tour - Event 1 Snooker |
| Julian Mills defeated Dessie Sheehan | 2001 World Championship Snooker |
| Karan Chand defeated Dessie Sheehan | 2001 Challenge Tour - Event 2 Snooker |
| Dessie Sheehan defeated Gareth Chilcott | 2001 Challenge Tour - Event 2 Snooker |
| Paul Cavney defeated Dessie Sheehan | 2000 World Championship Snooker |
| Dessie Sheehan defeated Stephen Tierney | 2000 World Championship Snooker |
| Marc Farnsworth defeated Dessie Sheehan | 1999 World Championship Snooker |
| Philip Minchin defeated Dessie Sheehan | 1996 World Championship Snooker |
| Garoid O'Connor defeated Dessie Sheehan | 1996 Welsh Open Snooker |
| Darren Swinburn defeated Dessie Sheehan | 1996 European Open Snooker |
| Munier Cassim defeated Dessie Sheehan | 1995 UK Championship Snooker |
| Simon Bedford defeated Dessie Sheehan | 1995 Thailand Classic Snooker |
| Russell McGrady defeated Dessie Sheehan | 1995 Grand Prix Snooker |
| Geet Sethi defeated Dessie Sheehan | 1994 Welsh Open Snooker |
| Philip Seaton defeated Dessie Sheehan | 1994 Thailand Open Snooker |
| Gary Lees defeated Dessie Sheehan | 1994 International Open Snooker |
| Dessie Sheehan defeated David Rice | 1994 International Open Snooker |
| Matthew Davies defeated Dessie Sheehan | 1994 British Open Snooker |
| Stephen O'Connor defeated Dessie Sheehan | 1993 World Championship Snooker |
| Paul Morgan defeated Dessie Sheehan | 1993 Welsh Open Snooker |
| Stephen Taylor defeated Dessie Sheehan | 1993 UK Championship Snooker |
| Steve Lemmens defeated Dessie Sheehan | 1993 Strachan Challenge - Event 3 Snooker |
| Simon Morris defeated Dessie Sheehan | 1993 Strachan Challenge - Event 2 Snooker |
| Dermot McGlinchey defeated Dessie Sheehan | 1993 Irish Professional Championship Snooker |
| Dessie Sheehan defeated John Leahy | 1993 Irish Professional Championship Snooker |