| Sutton Dinghy Club | 33 | Schools | 119 | Entries | ||||
| All Ireland Inter Schools 2009 | 41 | Teams | 147 | Sailors | ||||
| Optimist Class | ||||||||
| Institute of Education Perpetual – Team Trophy | ||||||||
| 1st | Malahide Community School | Lizzy McDowell | Seán Anglim | Colm Roche | ||||
| 2nd | St. Fintans National School | Fergus Flood | Nicholas Delamer | |||||
| 3rd | St. Patricks SNS | Seán Waddilove | Conor Morgan | Eimear Davis | ||||
| 4th | Malahide Community School | Michael Donnelly | Alex Shackleton | Shane Cox | ||||
| 5th | Belvedere College | Thomas Natin | David Johnson | Callum Maher | ||||
| Optimist Champion - Individual Trophy | ||||||||
| 1st | St. Patricks SNS | Seán Waddilove | ||||||
| 2nd | St. Fintans National School | Fergus Flood | ||||||
| 3rd | Malahide Community School | Seán Anglim | ||||||
| 4th | Malahide Community School | Lizzy McDowell | ||||||
| 5th | Malahide Community School | Michael Donnelly | ||||||
| Mixed Fleet Racing | ||||||||
| Conor Nolan Memorial – Team Trophy | ||||||||
| 1st | Belvedere College | Mark Condy | Scott Flanigan | |||||
| 2nd | Sutton Park School | Luke Malcolm | Shane Diviney | Chris Malcolm | ||||
| 3rd | St. Gerards Bray | Ian Byrne | Oisín O'Neill | Moirin O'Neill | ||||
| 4th | Pobalscoil Neasáin | Rónan Hand | Eoghan O'Malley | Conor O'Reilly | ||||
| 5th | Malahide Community School | Brendan Costello | Ciarán Costello | Caoimhe Rainey | ||||
| Davidson Memorial - Individual Trophy | ||||||||
| 1st | Belvedere College | Scott Flanigan | Peter Gleeson | |||||
| 2nd | St. Gerards Bray | Ian Byrne | ||||||
| 3rd | Pobalscoil Neasáin | Rónan Hand | Fionn Hand | |||||
| 4th | Sutton Park School | Shane Diviney | ||||||
| 5th | Belvedere College | Mark Condy | ||||||