Tournament Record - John O'Sullivan In Irish Masters Championship
| Played | Winner | Final | Semi-final | Quarter-final | Last 16 | Last 32 | Prize Money | Centuries |
|---|---|---|---|---|---|---|---|---|
| 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Tournament | Finish | Prize Money (GBP) |
|---|---|---|
 2023 Irish Masters Championship |
Last 16 | 0 |
| 2022 Irish Masters Championship |
Semi-final | 0 |
| 2019 Irish Masters Championship |
Last 16 | 0 |
| 2018 Irish Masters Championship |
Quarter-final | 0 |