| NUM | Nome | Data iscrizione | Class | Country | Club Sailor | Sex Sailor | Coach / Parent / Guardian Name |
|---|---|---|---|---|---|---|---|
| 401 | Luc van Rooij | 25-03-2021 | OPTIMIST | Paesi Bassi (NED) | Royal Yacht Club de Maas | Man | Maarten Treuren |
| 402 | Alexander Hartsink | 25-03-2021 | OPTIMIST | Paesi Bassi (NED) | Ocn vrijbuiter | Man | Vasco |
| 403 | Jeroen Dieperink | 25-03-2021 | OPTIMIST | Paesi Bassi (NED) | OCN | Man | Demi van der Meer |
| 404 | Berend Roozendaal | 25-03-2021 | OPTIMIST | Paesi Bassi (NED) | KWVL / OCN | Man | Demi van der Meer |
| 405 | Thomas Reyers | 25-03-2021 | OPTIMIST | Paesi Bassi (NED) | OCN | Man | Demi van der Meer |
| 406 | Tjed Wildeboer | 25-03-2021 | OPTIMIST | Paesi Bassi (NED) | WSV Braassemermeer OCN | Man | Arjen Wildeboer |
| 407 | Amber Knape | 25-03-2021 | OPTIMIST | Paesi Bassi (NED) | OCN - Royal Yachtclub Loosdrecht | Woman | Vasco |
| 408 | Leona Vierling | 24-03-2021 | OPTIMIST | Paesi Bassi (NED) | Royal Maas Yacht Club | Woman | Charles Vierling |
| 409 | Lenno Leefmans | 24-03-2021 | OPTIMIST | Paesi Bassi (NED) | RZV | Man | Maarten Treuren |
| 410 | Lotje van der Velden | 24-03-2021 | OPTIMIST | Paesi Bassi (NED) | Rotterdamsche zeilvereniging RZV | Woman | Jeroen van der Velden |
| 411 | Stijn Post | 24-03-2021 | OPTIMIST | Paesi Bassi (NED) | Royal Maas Yacht Club | Man | Suzanne Steennis |