| Result | Tournament |
|---|---|
| Tony Knowles defeated Robert McCullough | 2005 World Championship Snooker |
| Stephen Croft defeated Robert McCullough | 2005 Challenge Tour - Event 4 Snooker |
| Dermot McGlinchey defeated Robert McCullough | 2005 Challenge Tour - Event 3 Snooker |
| Sean Lanigan defeated Robert McCullough | 2004 Challenge Tour - Event 2 Snooker |
| David John defeated Robert McCullough | 2004 Challenge Tour - Event 1 Snooker |