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| Class Type | Date | SailorName | Rank | FleetSize | EventName | |
| Laser | May,2001 | Dirk Jaap KOOISTRA | 63 | 76 | Holland Regatta | View |
| Laser | June,2002 | Dirk Jaap KOOISTRA | 78 | 101 | Kiel Week | View |
| Laser | May,2004 | Dirk Jaap KOOISTRA | 28 | 53 | Holland Regatta | View |
| Laser | May,2005 | Dirk Jaap KOOISTRA | 67 | 79 | Holland Regatta | View |
| Laser | March,2007 | Dirk Jaap KOOISTRA | 520 | 831 | ISAF Rankings | View |
| Laser | April,2007 | Dirk Jaap KOOISTRA | 139 | 188 | Semaine Olympique Francaise | View |
| Laser | May,2007 | Dirk Jaap KOOISTRA | 54 | 76 | Holland Regatta | View |