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| Class Type | Date | SailorName | Rank | FleetSize | EventName | |
| 420 | March,2010 | Cian O'REGAN | 11 | 56 | Winter Championship | View |
| 420 | July,2009 | CIAN O'REGAN | 25 | 63 | 2009 59th Intervela | View |
| 420 | May,2009 | Cian O'REGAN | 28 | 49 | Qualifier | View |
| 420 | April,2009 | Cian O'REGAN | 18 | 45 | Worlds Selector | View |
| 420 | March,2009 | Cian O'REGAN | 23 | 45 | Qualifiers | View |
| 420 | November,2008 | Cian O'REGAN | 13 | 57 | End of seasons | View |
| 420 | August,2008 | Cian O'REGAN | 21 | 63 | Nationals | View |
| OPTIMIST | April,2007 | Cian O'Regan | 1 | 55 | Irish Optimist Trials 2007 | View |