Tournament Record - Sean O'Neill In Northern Ireland Under-21 Championship
| Played | Winner | Final | Semi-final | Quarter-final | Last 16 | Last 32 | Prize Money | Centuries |
|---|---|---|---|---|---|---|---|---|
| 2 | 0 | 0 | 2 | 2 | 4 | 4 | 0 | 0 |
| Tournament | Finish | Prize Money (GBP) |
|---|---|---|
 2002 Northern Ireland Under-21 Championship |
Winner | 0 |
| 2001 Northern Ireland Under-21 Championship |
Winner | 0 |