Tournament Record - Mark Williams In Irish Open
| Played | Winner | Final | Semi-final | Quarter-final | Last 16 | Last 32 | Prize Money | Centuries |
|---|---|---|---|---|---|---|---|---|
| 1 | 72 | 58 | 98 | 170 | 200 | 168 | 50,000 | 5 |
| Tournament | Finish | Prize Money (GBP) |
|---|---|---|
 1998 Irish Open |
Winner | 50,000 |
| Played | Winner | Final | Semi-final | Quarter-final | Last 16 | Last 32 | Prize Money | Centuries |
|---|---|---|---|---|---|---|---|---|
| 1 | 72 | 58 | 98 | 170 | 200 | 168 | 50,000 | 5 |
| Tournament | Finish | Prize Money (GBP) |
|---|---|---|
| 1998 Irish Open |
Winner | 50,000 |