| Result | Tournament |
|---|---|
| Mike Henson defeated Michael Duffy | 1999 World Championship Snooker |
| Marco Fu defeated Michael Duffy | 1998 World Championship Snooker |
| Allister Carter defeated Michael Duffy | 1998 UK Tour - Event 5 Snooker |
| Adrian Gunnell defeated Michael Duffy | 1998 UK Tour - Event 4 Snooker |
| Alex Lambie defeated Michael Duffy | 1998 UK Tour - Event 3 Snooker |
| Darren Limburg defeated Michael Duffy | 1998 UK Tour - Event 2 Snooker |
| Matthew Bray defeated Michael Duffy | 1998 UK Tour - Event 1 Snooker |
| Alan Burnett defeated Michael Duffy | 1997 World Championship Snooker |
| Chris Barnard defeated Michael Duffy | 1997 Welsh Open Snooker |
| Graham Horne defeated Michael Duffy | 1997 Thailand Open Snooker |
| Michael Duffy defeated Stephen Ormerod | 1997 Thailand Open Snooker |
| Alex Borg defeated Michael Duffy | 1997 Qualifying School - Event 4 Snooker |
| Barry Mapstone defeated Michael Duffy | 1997 Qualifying School - Event 3 Snooker |
| Mark Fenton defeated Michael Duffy | 1997 Qualifying School - Event 2 Snooker |
| Gareth Chilcott defeated Michael Duffy | 1997 Qualifying School - Event 1 Snooker |
| Mehmet Husnu defeated Michael Duffy | 1997 International Open Snooker |
| Michael Duffy defeated Jason Wallace | 1997 International Open Snooker |
| Michael Duffy defeated Stephen Popplewell | 1997 International Open Snooker |
| Robert Milkins defeated Michael Duffy | 1997 European Open Snooker |
| Michael Duffy defeated Karl Payne | 1997 European Open Snooker |
| Michael Duffy defeated Simon Parker | 1997 European Open Snooker |
| Michael Duffy defeated Jason Wallace | 1997 European Open Snooker |
| Michael Duffy defeated Derek Dunkling | 1997 European Open Snooker |
| Mark King defeated Michael Duffy | 1997 British Open Snooker |
| Michael Duffy defeated John Lardner | 1997 British Open Snooker |
| Michael Duffy defeated Nick Fruin | 1997 British Open Snooker |
| Michael Duffy defeated John Herbert | 1997 British Open Snooker |
| David Taylor defeated Michael Duffy | 1996 World Championship Snooker |
| Michael Duffy defeated Richard Wheelhouse | 1996 World Championship Snooker |
| Tony Kenny defeated Michael Duffy | 1996 Welsh Open Snooker |
| Nigel Gilbert defeated Michael Duffy | 1996 UK Championship Snooker |
| Michael Duffy defeated Munraj Pal | 1996 UK Championship Snooker |
| Karl Payne defeated Michael Duffy | 1996 Thailand Open Snooker |
| Michael Duffy defeated Graham Stevens | 1996 Thailand Open Snooker |
| Craig Bradshaw defeated Michael Duffy | 1996 International Open Snooker |
| Gerard Greene defeated Michael Duffy | 1996 Grand Prix Snooker |
| Michael Duffy defeated Ian Bullimore | 1996 Grand Prix Snooker |
| James Reynolds defeated Michael Duffy | 1996 German Open Snooker |
| Robin Hull defeated Michael Duffy | 1996 European Open Snooker |
| Michael Duffy defeated Philip Seaton | 1996 European Open Snooker |
| Simon Parker defeated Michael Duffy | 1996 British Open Snooker |
| Paul Sweeny defeated Michael Duffy | 1996 Benson and Hedges Championship Snooker |
| Michael Duffy defeated Dylan Leary | 1996 Benson and Hedges Championship Snooker |
| Michael Duffy defeated Alistair Fleming | 1996 Benson and Hedges Championship Snooker |
| Michael Duffy defeated Andrew Highfield | 1996 Benson and Hedges Championship Snooker |
| Robert Milkins defeated Michael Duffy | 1996 Asian Classic Snooker |
| Jason Greaves defeated Michael Duffy | 1995 World Championship Snooker |
| Andrew Peters defeated Michael Duffy | 1995 Welsh Open Snooker |
| Michael Duffy defeated John Buckley | 1995 Welsh Open Snooker |
| Andrew Hannah defeated Michael Duffy | 1995 UK Championship Snooker |