| Matt Wilson defeated Martin O'Neill |
1999 World Championship Snooker |
| Nick Manning defeated Martin O'Neill |
1998 World Championship Snooker |
| Antony Bolsover defeated Martin O'Neill |
1997 World Championship Snooker |
| Martin O'Neill defeated Mark Rowing |
1997 World Championship Snooker |
| Martin O'Neill defeated Barry Hawkins |
1997 World Championship Snooker |
| Chris Scanlon defeated Martin O'Neill |
1997 British Open Snooker |
| Martin O'Neill defeated James Vicarey |
1997 British Open Snooker |
| Lee Walker defeated Martin O'Neill |
1997 Thailand Open Snooker |
| Martin O'Neill defeated David McLellan |
1997 Thailand Open Snooker |
| Martin O'Neill defeated Andrew Radford |
1997 Thailand Open Snooker |
| Rory McLeod defeated Martin O'Neill |
1997 European Open Snooker |
| Wayne Saidler defeated Martin O'Neill |
1997 International Open Snooker |
| Ian McCulloch defeated Martin O'Neill |
1997 Welsh Open Snooker |
| Martin O'Neill defeated Paul Cavney |
1997 Welsh Open Snooker |
| Martin O'Neill defeated Will Jerram |
1997 Welsh Open Snooker |
| Matthew Bray defeated Martin O'Neill |
1996 German Open Snooker |
| Martin O'Neill defeated Andrew Cairns |
1996 German Open Snooker |
| Martin O'Neill defeated Karl Beare |
1996 German Open Snooker |
| Paul Hunter defeated Martin O'Neill |
1996 UK Championship Snooker |
| Martin O'Neill defeated Johl Younger |
1996 UK Championship Snooker |
| Paul Davies defeated Martin O'Neill |
1996 Grand Prix Snooker |
| Martin O'Neill defeated Simon Parker |
1996 Grand Prix Snooker |
| Martin O'Neill defeated Sean Lanigan |
1996 Grand Prix Snooker |
| Martin O'Neill defeated Daniele Zagaroli |
1996 Grand Prix Snooker |
| Drew Henry defeated Martin O'Neill |
1996 Benson and Hedges Championship Snooker |
| Martin O'Neill defeated John Lardner |
1996 Benson and Hedges Championship Snooker |
| Martin O'Neill defeated David Roe |
1996 Benson and Hedges Championship Snooker |
| Martin O'Neill defeated Mohammed Shazi Khan |
1996 Benson and Hedges Championship Snooker |
| Shokat Ali defeated Martin O'Neill |
1996 Asian Classic Snooker |
| Martin O'Neill defeated Stephen Kershaw |
1996 Asian Classic Snooker |
| Stephen Lee defeated Martin O'Neill |
1996 World Championship Snooker |
| Martin O'Neill defeated Oliver King |
1996 World Championship Snooker |
| Martin O'Neill defeated Stuart Reardon |
1996 World Championship Snooker |
| Martin O'Neill defeated Eddie Manning |
1996 World Championship Snooker |
| Sean Lanigan defeated Martin O'Neill |
1996 British Open Snooker |
| Martin O'Neill defeated Neil Selman |
1996 British Open Snooker |
| Tony Meo defeated Martin O'Neill |
1996 Thailand Open Snooker |
| Martin O'Neill defeated Steve Harrison |
1996 Thailand Open Snooker |
| Alistair Fleming defeated Martin O'Neill |
1996 European Open Snooker |
| Neal Jones defeated Martin O'Neill |
1998 UK Tour - Event 1 Snooker |
| Wayne Saidler defeated Martin O'Neill |
1998 UK Tour - Event 2 Snooker |
| Graham Horne defeated Martin O'Neill |
1998 UK Tour - Event 3 Snooker |
| Martin O'Neill defeated Michael O'Sullivan |
1998 UK Tour - Event 3 Snooker |
| Mark Miller defeated Martin O'Neill |
1998 UK Tour - Event 4 Snooker |
| Colm Gilcreest defeated Martin O'Neill |
1998 UK Tour - Event 5 Snooker |
| Darren Clarke defeated Martin O'Neill |
1996 International Open Snooker |
| Martin O'Neill defeated John Manley |
1996 International Open Snooker |
| Tom Finstad defeated Martin O'Neill |
1996 Welsh Open Snooker |
| Eugene Hughes defeated Martin O'Neill |
1995 German Open Snooker |
| Martin O'Neill defeated Martin Dziewialtowski |
1995 German Open Snooker |
| Matthew Stevens defeated Martin O'Neill |
1995 UK Championship Snooker |
| Lee Richardson defeated Martin O'Neill |
1995 Benson and Hedges Championship Snooker |
| Michael Leach defeated Martin O'Neill |
1995 Grand Prix Snooker |
| Euan Henderson defeated Martin O'Neill |
1995 Thailand Classic Snooker |
| Martin O'Neill defeated Mark Miller |
1995 Thailand Classic Snooker |
| Scott MacFarlane defeated Martin O'Neill |
1995 World Championship Snooker |
| Martin O'Neill defeated Dominic Dale |
1995 World Championship Snooker |
| Martin O'Neill defeated Darren Lennox |
1995 World Championship Snooker |
| Martin O'Neill defeated Neil Selman |
1995 World Championship Snooker |
| Alistair Fleming defeated Martin O'Neill |
1995 British Open Snooker |
| Chris Small defeated Martin O'Neill |
1995 Thailand Open Snooker |
| Martin O'Neill defeated Dean Venables |
1995 Thailand Open Snooker |
| Martin O'Neill defeated Matthew Catchpole |
1995 Thailand Open Snooker |
| Mark Rowing defeated Martin O'Neill |
1995 International Open Snooker |
| Martin O'Neill defeated Matthew Spade |
1995 International Open Snooker |
| Martin O'Neill defeated Craig Barber |
1995 International Open Snooker |
| Anthony Harris defeated Martin O'Neill |
1995 Welsh Open Snooker |
| Martin O'Neill defeated Bill Oliver |
1995 Welsh Open Snooker |
| Martin O'Neill defeated Darren Paris |
1995 Welsh Open Snooker |
| Paddy Browne defeated Martin O'Neill |
1994 European Open Snooker |
| Martin O'Neill defeated Darren Shaw |
1994 European Open Snooker |
| Jamie Woodman defeated Martin O'Neill |
1994 UK Championship Snooker |
| Martin O'Neill defeated Ken Owers |
1994 UK Championship Snooker |
| Martin O'Neill defeated Steve Ventham |
1994 UK Championship Snooker |
| Martin O'Neill defeated Tim Parry |
1994 UK Championship Snooker |
| Peter Bullen defeated Martin O'Neill |
1994 Grand Prix Snooker |
| Joe Grech defeated Martin O'Neill |
1994 Dubai Classic Snooker |
| Martin O'Neill defeated Scott MacFarlane |
1994 Dubai Classic Snooker |
| Martin O'Neill defeated Steve Harrison |
1994 Dubai Classic Snooker |
| Martin O'Neill defeated David Singh |
1994 Dubai Classic Snooker |
| John Higgins defeated Martin O'Neill |
1994 World Championship Snooker |
| Martin O'Neill defeated Graham MacDonald |
1994 World Championship Snooker |
| Martin O'Neill defeated Pat Horne |
1994 World Championship Snooker |
| Martin O'Neill defeated Craig Harrison |
1994 World Championship Snooker |
| Martin O'Neill defeated Gareth Esprit |
1994 World Championship Snooker |
| Paul Davison (II) defeated Martin O'Neill |
1994 British Open Snooker |
| Martin O'Neill defeated Roy Bigg |
1994 British Open Snooker |
| Martin O'Neill defeated John Horsfall |
1994 British Open Snooker |
| Martin O'Neill defeated Tom Bell |
1994 British Open Snooker |
| Johnny Kemp defeated Martin O'Neill |
1994 Thailand Open Snooker |
| Tony Jones defeated Martin O'Neill |
1994 International Open Snooker |
| Martin O'Neill defeated Jonathan Birch |
1994 International Open Snooker |
| Martin O'Neill defeated Peter Daubney |
1994 International Open Snooker |
| Martin O'Neill defeated Barry West |
1994 International Open Snooker |
| Martin O'Neill defeated Dave Gilbert |
1994 International Open Snooker |
| Martin O'Neill defeated Mike Darrington |
1994 International Open Snooker |
| Martin O'Neill defeated Stuart Parnell |
1994 International Open Snooker |
| Martin O'Neill defeated John Knipe |
1994 International Open Snooker |
| Martin O'Neill defeated Peter Delaney |
1994 International Open Snooker |
| Andrew Krasinski defeated Martin O'Neill |
1994 Welsh Open Snooker |
| Mark Rowing defeated Martin O'Neill |
1993 European Open Snooker |
| Martin O'Neill defeated Alex Borg |
1993 European Open Snooker |
| Martin O'Neill defeated Graham Fisken |
1993 European Open Snooker |
| Martin O'Neill defeated Louis Fazekas |
1993 European Open Snooker |
| Martin O'Neill defeated Dennis Hughes |
1993 European Open Snooker |
| Martin O'Neill defeated Daniel Buskin |
1993 European Open Snooker |
| Jamie Burnett defeated Martin O'Neill |
1993 UK Championship Snooker |
| Martin O'Neill defeated Julian Goodyear |
1993 UK Championship Snooker |
| Martin O'Neill defeated Stuart Pegrum |
1993 UK Championship Snooker |
| Martin O'Neill defeated John Benton |
1993 UK Championship Snooker |
| Martin O'Neill defeated Anthony Sinclair |
1993 UK Championship Snooker |
| Jamie Burnett defeated Martin O'Neill |
1993 Grand Prix Snooker |
| Martin O'Neill defeated Nick Jones |
1993 Grand Prix Snooker |
| Martin O'Neill defeated David Athorn |
1993 Grand Prix Snooker |
| Martin O'Neill defeated Andrew Clark |
1993 Grand Prix Snooker |
| Gareth Chilcott defeated Martin O'Neill |
1993 Dubai Classic Snooker |
| Carl Waters defeated Martin O'Neill |
1993 World Championship Snooker |
| Dominic Dale defeated Martin O'Neill |
1993 International Open Snooker |
| Neil Tomkins defeated Martin O'Neill |
1993 Asian Open Snooker |
| David Stone defeated Martin O'Neill |
1993 Welsh Open Snooker |
| Noppadon Noppachorn defeated Martin O'Neill |
1992 UK Championship Snooker |
| Stuart Pettman defeated Martin O'Neill |
1992 Grand Prix Snooker |
| Martin O'Neill defeated Alexander Ferguson |
1992 Grand Prix Snooker |
| Paul Davison defeated Martin O'Neill |
1992 Dubai Classic Snooker |
| Stephen Murphy defeated Martin O'Neill |
1993 Irish Professional Championship Snooker |
| Martin O'Neill defeated Jack McLaughlin |
1993 Irish Professional Championship Snooker |
| Martin O'Neill defeated Fergal O'Brien |
1993 Irish Professional Championship Snooker |
| Martin O'Neill defeated Tommy Murphy |
1993 Irish Professional Championship Snooker |
| Martin O'Neill defeated Darren Lennox |
1993 Irish Professional Championship Snooker |
| Martin O'Neill defeated Rory Mallon |
1993 Irish Professional Championship Snooker |
| Michael Judge defeated Martin O'Neill |
1992 Irish Professional Championship Snooker |
| Declan Hughes defeated Martin O'Neill |
1997 Qualifying School - Event 1 Snooker |
| Alan Burnett defeated Martin O'Neill |
1997 Qualifying School - Event 2 Snooker |
| Martin O'Neill defeated Wayne Saidler |
1997 Qualifying School - Event 2 Snooker |
| Ian Hurdman defeated Martin O'Neill |
1997 Qualifying School - Event 3 Snooker |
| Lee Richardson defeated Martin O'Neill |
1997 Qualifying School - Event 4 Snooker |
| Martin O'Neill defeated Declan Hughes |
1997 Qualifying School - Event 4 Snooker |