Tournament Record - John O'Sullivan In Irish Amateur Championship
| Played | Winner | Final | Semi-final | Quarter-final | Last 16 | Last 32 | Prize Money | Centuries |
|---|---|---|---|---|---|---|---|---|
| 15 | 0 | 0 | 0 | 0 | 0 | 0 | 64 | 0 |
| Tournament | Finish | Prize Money (GBP) |
|---|---|---|
 2023 Irish Amateur Championship |
Last 64 | 0 |
| 2022 Irish Amateur Championship |
Last 32 | 0 |
| 2021 Irish Amateur Championship |
Quarter-final | 64 |
| 2019 Irish Amateur Championship |
Last 32 | 0 |
| 2018 Irish Amateur Championship |
Last 64 | 0 |
| 2017 Irish Amateur Championship |
Last 32 | 0 |
| 2016 Irish Amateur Championship |
Last 16 | 0 |
| 2015 Irish Amateur Championship |
Last 32 | 0 |
| 2013 Irish Amateur Championship |
Last 16 | 0 |
| 2012 Irish Amateur Championship |
Last 16 | 0 |
| 2009 Irish Amateur Championship |
Still competing | 0 |
| 2008 Irish Amateur Championship |
Last 32 | 0 |
| 2006 Irish Amateur Championship |
Last 32 | 0 |
| 2005 Irish Amateur Championship |
Still competing | 0 |
| 2004 Irish Amateur Championship |
Last 16 | 0 |