| Result | Tournament |
|---|---|
| Nick Jennings defeated Kieran McMahon | 2011 PTC - Event 8 Snooker |
| Kieran McMahon defeated Robbie Walker | 2011 PTC - Event 8 Snooker |
| Jonathan Bagley defeated Kieran McMahon | 1996 World Championship Snooker |
| Kieran McMahon defeated Neville Atkins | 1996 World Championship Snooker |
| Neil Tomkins defeated Kieran McMahon | 1996 Welsh Open Snooker |
| Kieran McMahon defeated Karl Townsend | 1996 Welsh Open Snooker |
| Kieran McMahon defeated Johan Oenema | 1996 Welsh Open Snooker |
| Scott Cooney defeated Kieran McMahon | 1996 Thailand Open Snooker |
| Kieran McMahon defeated Guo Hua | 1996 Thailand Open Snooker |
| Peter McCullagh defeated Kieran McMahon | 1996 International Open Snooker |
| Kieran McMahon defeated Adrian Gunnell | 1996 International Open Snooker |
| Kieran McMahon defeated David Athorn | 1996 International Open Snooker |
| Andy Duff defeated Kieran McMahon | 1996 European Open Snooker |
| Kieran McMahon defeated Garoid O'Connor | 1996 European Open Snooker |
| Andy Duff defeated Kieran McMahon | 1996 British Open Snooker |
| Kieran McMahon defeated Steven de Baets | 1996 British Open Snooker |
| Ian McCulloch defeated Kieran McMahon | 1995 World Championship Snooker |
| Kieran McMahon defeated Robert Marshall | 1995 World Championship Snooker |
| Kieran McMahon defeated Steven Van Osselaer | 1995 World Championship Snooker |
| Paul Cavney defeated Kieran McMahon | 1995 UK Championship Snooker |
| Kieran McMahon defeated Mike Dunn | 1995 UK Championship Snooker |
| Kieran McMahon defeated Paul Sweeny | 1995 UK Championship Snooker |
| Kieran McMahon defeated Steve Gough | 1995 UK Championship Snooker |
| Kieran McMahon defeated Donal Bonar | 1995 UK Championship Snooker |
| John Mills defeated Kieran McMahon | 1995 Thailand Classic Snooker |
| Bradley Jones defeated Kieran McMahon | 1995 Malta Masters Snooker |
| Kieran McMahon defeated James O'Sullivan | 1995 Malta Masters Snooker |
| Peter Gilchrist defeated Kieran McMahon | 1995 Grand Prix Snooker |
| Kieran McMahon defeated Raymon Fabrie | 1995 Grand Prix Snooker |
| Kieran McMahon defeated Damian Astre | 1995 Grand Prix Snooker |
| Simon Bedford defeated Kieran McMahon | 1995 German Open Snooker |
| Dylan Leary defeated Kieran McMahon | 1993 World Championship Snooker |
| Kieran McMahon defeated Tony Emmott | 1993 World Championship Snooker |
| Kieran McMahon defeated Neil Cameron | 1993 World Championship Snooker |
| Kieran McMahon defeated Mark Williams (II) | 1993 World Championship Snooker |
| Peter Bullen defeated Kieran McMahon | 1993 Welsh Open Snooker |
| Graham Stevens defeated Kieran McMahon | 1993 Strachan Challenge - Event 3 Snooker |
| Jason Curtis defeated Kieran McMahon | 1993 Strachan Challenge - Event 2 Snooker |
| John Knipe defeated Kieran McMahon | 1993 European Open Snooker |
| Gary Peters defeated Kieran McMahon | 1993 British Open Snooker |
| Kieran McMahon defeated Gavin Burns | 1993 British Open Snooker |
| Paul Davison defeated Kieran McMahon | 1993 Asian Open Snooker |
| Peter McCullagh defeated Kieran McMahon | 1992 UK Championship Snooker |
| Kieran McMahon defeated Richard McHugh | 1992 UK Championship Snooker |
| Kieran McMahon defeated Barry O'Loughlin | 1992 UK Championship Snooker |
| Kieran McMahon defeated Ian Bullimore | 1992 UK Championship Snooker |
| Dominic Dale defeated Kieran McMahon | 1992 Strachan Challenge - Event 1 Snooker |
| Paul Morgan defeated Kieran McMahon | 1992 Grand Prix Snooker |
| Kieran McMahon defeated Jonathan Bagley | 1992 Grand Prix Snooker |
| Kieran McMahon defeated Andrew Clark | 1992 Grand Prix Snooker |