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| Class Type | Date | SailorName | Rank | FleetSize | EventName | |
| Optimist | December,2004 | Nathan Ackroyd | 28 | 44 | Bowmoor Winter Open 2004 - Main Fleet | View |
| Optimist | October,2004 | Nathan Ackroyd | 54 | 238 | Volvo Musto Optimist End of Season Championships - Main Fleet | View |
| Optimist | May,2004 | Nathan Ackroyd | 57 | 221 | Volvo Musto Optimist Inland Championships - Main Fleet | View |
| Optimist | May,2004 | Nathan Ackroyd | 57 | 266 | IOCA National Squad Selection Rankings 2004/5 | View |
| Optimist | October,2003 | Nathan Ackroyd | 95 | 217 | Volvo Musto Optimist End of Season Championships - Main Fleet | View |
| Optimist | August,2003 | Nathan Ackroyd | 101 | 120 | Volvo Musto Optimist Open and National Championships - Senior Fleet | View |
| Optimist | August,2003 | Nathan Ackroyd | 101 | 120 | Nationals - Senior Fleet | View |
| Optimist | May,2003 | Nathan Ackroyd | 120 | 222 | Inlands | View |
| Optimist | May,2003 | Nathan Ackroyd | 99 | 255 | IOCA National Squad Selection Rankings 2003/4 | View |
| Optimist | March,2003 | Nathan Ackroyd | 103 | 271 | National Rankings 2003 incl 15 year-olds | View |