Tournament Record - Sean O'Neill In World Championship
| Played | Winner | Final | Semi-final | Quarter-final | Last 16 | Last 32 | Prize Money | Centuries |
|---|---|---|---|---|---|---|---|---|
| 5 | 0 | 0 | 2 | 2 | 4 | 4 | 0 | 3 |
| Tournament | Finish | Prize Money (GBP) |
|---|---|---|
 2005 World Championship |
Last 96 | 0 |
| 2004 World Championship |
Round 2 | 0 |
| 2003 World Championship |
Round 3 | 0 |
| 2002 World Championship |
Round 3 | 0 |
| 2001 World Championship |
Withdrew | 0 |
| 2000 World Championship |
Pre-qualifying 2 | 0 |